{"id":3103,"date":"2015-07-15T01:30:55","date_gmt":"2015-07-15T01:30:55","guid":{"rendered":"http:\/\/sw-themes.com\/porto_dummy\/?page_id=3103"},"modified":"2018-06-15T09:47:20","modified_gmt":"2018-06-15T01:47:20","slug":"faqs","status":"publish","type":"page","link":"https:\/\/www.rubytech.com.tw\/rubytech\/faqs\/","title":{"rendered":"FAQs"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column][vc_custom_heading text=&#8221;Frequently Asked Questions&#8221; font_container=&#8221;tag:h2|text_align:center&#8221; use_theme_fonts=&#8221;yes&#8221; el_class=&#8221;shorter&#8221;][vc_separator color=&#8221;custom&#8221; gap=&#8221;tall&#8221; gradient=&#8221;yes&#8221;][\/vc_column][\/vc_row][vc_row][vc_column]<div class=\"porto-faqs porto-faqsgxd9 wpb_content_element \"><h4 class=\"wpb_heading \">What would you like to know?<\/h4>\r\n\t<div class=\"page-faqs clearfix m-t-lg wpb_custom_7fe7ddf8f1a240d6488c8a8c41279112\" id=\"porto_faqs_beac\">\r\n\r\n\t\t\t\t\t<ul class=\"faq-filter nav nav-pills sort-source\">\r\n\t\t\t\t<li class=\"active\" data-filter=\"*\"><a>Show All<\/a><\/li>\r\n\t\t\t\t\t\t\t\t\t<li data-filter=\"cli\"><a>CLI<\/a><\/li>\r\n\t\t\t\t\t\t\t\t\t<li data-filter=\"function\"><a>Function<\/a><\/li>\r\n\t\t\t\t\t\t\t\t\t<li data-filter=\"hardware\"><a>Hardware<\/a><\/li>\r\n\t\t\t\t\t\t\t\t\t<li data-filter=\"protocol\"><a>Protocol<\/a><\/li>\r\n\t\t\t\t\t\t\t\t\t<li data-filter=\"software\"><a>Software<\/a><\/li>\r\n\t\t\t\t\t\t\t<\/ul>\r\n\t\t\t<hr>\r\n\t\t\r\n\t\t\r\n\t\t<div class=\"faq-row faqs-container\">\r\n\t\t\t\r\n<div class=\"faq hardware post-4191 type-faq status-publish hentry faq_cat-hardware\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>Which UTP pairs are used for delivers power on ECO layer2 PoE managed series switches and web PoE series switches ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">Which UTP pairs are used for delivers power on ECO layer2 PoE managed series switches and web PoE series switches ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T18:35:08+08:00<\/span>pins 1 and 2 (pair #2 in<a href=\"http:\/\/en.wikipedia.org\/wiki\/T568B\">T568B<\/a>\u00a0) and pins 3 and 6 (pair #3 in T568B)\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq hardware post-4188 type-faq status-publish hentry faq_cat-hardware\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>What kinds of UTP category agree with use on the switch ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">What kinds of UTP category agree with use on the switch ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T18:32:30+08:00<\/span>Category 5.category 5e .category 6\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq hardware post-4185 type-faq status-publish hentry faq_cat-hardware\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>How to do factory default on ECO layer2 managed series switches and web series switches ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">How to do factory default on ECO layer2 managed series switches and web series switches ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T18:31:53+08:00<\/span>Stab \/Push reset button until the front LED all flash, then release the button.\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq cli post-4182 type-faq status-publish hentry faq_cat-cli\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>How to import your config file into the switch by console port ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">How to import your config file into the switch by console port ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T18:31:09+08:00<\/span><ol>\r\n\t<li>Install tftp client tool at your manage PC and designate directory is necessary .<\/li>\r\n\t<li>Type command on CLI.<\/li>\r\n<\/ol>\r\nSwitch# config-file\r\n\r\nSwitch(config-file)# import 192.168.1.135 config.xml\r\n\r\nSaved 63007 bytes to server\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq cli post-4179 type-faq status-publish hentry faq_cat-cli\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>How to export your configuration to a backup file by console port ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">How to export your configuration to a backup file by console port ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T18:30:33+08:00<\/span><ol>\r\n\t<li>Install tftp client tool at your manage PC and designate directory is necessary .<\/li>\r\n\t<li>Type command on CLI.<\/li>\r\n<\/ol>\r\nSwitch# config-file\r\n\r\nSwitch(config-file)# export 192.168.1.135 config.xml\r\n\r\nSaved 63007 bytes to server\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq cli post-4176 type-faq status-publish hentry faq_cat-cli\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>How to save configuration in backup area of flash by console port ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">How to save configuration in backup area of flash by console port ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T18:29:53+08:00<\/span>Type command on CLI.\r\n\r\nSwitch# save user\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 &lt;enter&gt;\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq cli post-4173 type-faq status-publish hentry faq_cat-cli\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>How to keep current configuration in flash by console port .(after the switch reboot , the switch will reload this configuration) ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">How to keep current configuration in flash by console port .(after the switch reboot , the switch will reload this configuration) ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T18:29:15+08:00<\/span>Type command on CLI.\r\n\r\nSwitch# save start\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 &lt;enter&gt;\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq cli post-4170 type-faq status-publish hentry faq_cat-cli\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>How do I configure DHCP client on the switch by console port ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">How do I configure DHCP client on the switch by console port ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T18:28:39+08:00<\/span>Type command on CLI.\r\n\r\nSwitch# ip\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0&lt;enter&gt;\r\n\r\nSwitch(ip)# dhcp enable\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 &lt;enter&gt;\r\n\r\nSwitch(ip)# show\r\n\r\nConfigured\u00a0\u00a0\u00a0\u00a0\u00a0 Current\r\n\r\n--------------- ---------------\r\n\r\nDHCP Client\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : Enabled\r\n\r\nIP Address\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : 192.168.1.10\u00a0\u00a0\u00a0 192.168.1.220\r\n\r\nIP Mask\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : 255.255.255.0\u00a0\u00a0 255.255.255.0\r\n\r\nIP Gateway\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : 192.168.1.252\u00a0\u00a0 192.168.1.123\r\n\r\nVLAN ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : 1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1\r\n\r\nDNS Server\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : 0.0.0.0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 192.168.1.1\r\n\r\nProxy\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0: Disabled\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq cli post-4167 type-faq status-publish hentry faq_cat-cli\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>How do I reconfigure IP address.Subnet mask and Gateway thecn check them by consoel port ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">How do I reconfigure IP address.Subnet mask and Gateway thecn check them by consoel port ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T18:27:41+08:00<\/span>Type command on CLI.\r\n\r\nSwitch# ip\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 &lt;enter&gt;\r\n\r\nSwitch(ip)#set 192.168.1.10 255.255.255.0 192.168.1.2542 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0&lt;enter&gt;\r\n\r\n&nbsp;\r\n\r\nSwitch(ip)# show\r\n\r\nConfigured\u00a0\u00a0\u00a0\u00a0\u00a0 Current\r\n\r\n--------------- ---------------\r\n\r\nDHCP Client\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : Disabled\r\n\r\nIP Address\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : 192.168.1.10\u00a0\u00a0\u00a0 192.168.1.10\r\n\r\nIP Mask\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : 255.255.255.0\u00a0\u00a0 255.255.255.0\r\n\r\nIP Gateway\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : 192.168.1.252\u00a0\u00a0 192.168.1.252\r\n\r\nVLAN ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : 1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1\r\n\r\nDNS Server\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : 0.0.0.0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.0.0.0\r\n\r\nDNS Proxy\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0: Disabled\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq hardware post-4163 type-faq status-publish hentry faq_cat-hardware\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>What\u2019s baud rate on the switch ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">What\u2019s baud rate on the switch ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T18:25:04+08:00<\/span>Baud rate : 115200\r\n\r\nData : 8bit\r\n\r\nParity : none\r\n\r\nStop : 1 but\r\n\r\nFlow control : none\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq function post-4158 type-faq status-publish hentry faq_cat-function\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>How to use NTP server?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">How to use NTP server?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T18:18:46+08:00<\/span>Please configure NTP server address in the System ---&gt; Time ---&gt; NTP page, and select \u201cUse NTP Server\u201d as clock source in the System ---&gt; Time ---&gt; Manual page.\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq hardware post-4154 type-faq status-publish hentry faq_cat-hardware\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>How do I check the switch\u2019s MAC table on web UI?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">How do I check the switch\u2019s MAC table on web UI?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T18:17:55+08:00<\/span>You can check it on web UI as the following path.\r\n\r\nConfiguration ---&gt; Filtering Data Base\r\n\r\nAnd CLI command as below:\r\n\r\nSwitch# fdb\r\n\r\nSwitch (fdb)# show mac-table\r\n\r\nNo\u00a0\u00a0\u00a0 Type\u00a0\u00a0\u00a0\u00a0 MAC Address\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 VID\u00a0\u00a0 Ports\r\n\r\n----\u00a0 -------\u00a0 -----------------\u00a0 ----\u00a0 ---------------\r\n\r\n1\u00a0\u00a0\u00a0\u00a0 Dynamic\u00a0 00-1a-80-4a-b8-e7\u00a0 1\u00a0\u00a0\u00a0\u00a0 6\r\n\r\n2\u00a0\u00a0\u00a0\u00a0 Static\u00a0\u00a0 00-40-c7-aa-bb-cc\u00a0 1\u00a0\u00a0\u00a0\u00a0 None,CPU\r\n\r\n3\u00a0\u00a0\u00a0\u00a0 Static\u00a0\u00a0 33-33-00-00-00-01\u00a0 1\u00a0\u00a0\u00a0\u00a0 1-26,CPU\r\n\r\n4\u00a0\u00a0\u00a0\u00a0 Static\u00a0\u00a0 33-33-00-00-00-02\u00a0 1\u00a0\u00a0\u00a0\u00a0 1-26,CPU\r\n\r\n5\u00a0\u00a0\u00a0\u00a0 Static\u00a0\u00a0 33-33-ff-17-38-fa\u00a0 1\u00a0\u00a0\u00a0\u00a0 1-26,CPU\r\n\r\n6\u00a0\u00a0\u00a0\u00a0 Static\u00a0\u00a0 33-33-ff-aa-bb-cc\u00a0 1\u00a0\u00a0\u00a0\u00a0 1-26,CPU\r\n\r\nSwitch (fdb)# show static-mac\r\n\r\nTotal static MAC address : 0\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq software post-4149 type-faq status-publish hentry faq_cat-software\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>I have setup a syslog server, but I just want to receive some specific messages from the switch? How do I configure the switch?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">I have setup a syslog server, but I just want to receive some specific messages from the switch? How do I configure the switch?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T18:04:40+08:00<\/span>You can configure Trap Event Severity and Syslog Level to achieve the purpose.\r\n\r\nSyslog Level: Emerg &gt; Alert &gt; Crit &gt; Error &gt; Warning &gt; Notice &gt; Info &gt; Debug\r\n\r\n(ex. If you setup syslog level as \u201cInfo\u201d, it means all Emerg, Alert, Crit, Error, Warning, Notice and Info related messages will send to syslog server.)\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq function post-4146 type-faq status-publish hentry faq_cat-function\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>Can I configure different users to login the switch which have different permission?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">Can I configure different users to login the switch which have different permission?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T18:02:30+08:00<\/span>Yes, you can configure different \u201cPrivilege Level\u201d for different users. If the user\u2019s privilege level is lower than group\u2019s privilege level, the user doesn\u2019t have permission to modify the group\u2019s setting.\r\n\r\nCLI command: (Suppose to create a new account\/password \u201cTESTER\u201d with user privilege level 5, and the user only has permission to modify the System group settings. )\r\n\r\nSwitch# account\r\n\r\nSwitch(account)# add 5 TESTER TESTER\r\n\r\nSwitch(account)# exit\r\n\r\nSwitch# privilege\r\n\r\nSwitch(privilege)# group system 5\r\n\r\nNote: For the example, all groups\u2019 need to have higher privilege level than 5 except the \u201cSystem\u201d group.\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq function post-4143 type-faq status-publish hentry faq_cat-function\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>I forget Username\/Password for login? Is there any way to login the switch?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">I forget Username\/Password for login? Is there any way to login the switch?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T18:01:25+08:00<\/span>No, it only can press HW \u201cRESET\u201d button about 10 seconds to reset the switch to factory default.\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq function post-4140 type-faq status-publish hentry faq_cat-function\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>Why my web UI display abnormal, but it looks fine on other PCs?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">Why my web UI display abnormal, but it looks fine on other PCs?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T18:00:09+08:00<\/span>Please try to clear your browser\u2019s cache\/cookies and then restart it again.\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq protocol post-4137 type-faq status-publish hentry faq_cat-protocol\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>I would like to build a VLAN trunk(single tag) environment, is there any suggestion for configuring VLAN\u2019s port type and egress rule?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">I would like to build a VLAN trunk(single tag) environment, is there any suggestion for configuring VLAN\u2019s port type and egress rule?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T17:58:51+08:00<\/span>Suggest configure as below:\r\n<ul>\r\n\t<li>Port Type as \u201cC-port\u201d and Egress Rule as \u201cTrunk\u201d for Uplink port.<\/li>\r\n\t<li>Port Type as \u201cC-port\u201d and Egress Rule as \u201cAccess\u201d for Downlink port(Here it means PCs or can\u2019t recognize VLAN tag devices).<\/li>\r\n<\/ul>\r\nCLI command: (Suppose port 1 is uplink port, port 2~10 are downlink ports.)\r\n\r\nSwitch # vlan\r\n\r\nSwitch (vlan)# port-type 1 c-port\r\n\r\nSwitch (vlan)# egress-rule 1 trunk\r\n\r\nSwitch (vlan)# port-type 2-10 c-port\r\n\r\nSwitch (vlan)# egress-rule 2-10 access\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq function post-4134 type-faq status-publish hentry faq_cat-function\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>How do I restrict that the switch only can be accessed by specific IP address and protocol?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">How do I restrict that the switch only can be accessed by specific IP address and protocol?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T17:58:00+08:00<\/span>You can try to configure the \u201cAccess Management Configuration\u201d to restrict IP address range and protocol.\r\n\r\nWeb UI path:\r\n\r\nSecurity ---&gt; Access Management ---&gt; Configuration\r\n\r\nCLI command: (Suppose only allow IP address 192.168.3.30~192.168.3.50 can access the switch by HTTP\/HTTPS protocol .)\r\n\r\nSwitch# access\r\n\r\nSwitch(access)# add 1 ipv4 192.168.3.30 192.168.3.50 web\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq function post-4131 type-faq status-publish hentry faq_cat-function\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>How do I quick swap to the previous FW version if necessary?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">How do I quick swap to the previous FW version if necessary?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T17:56:47+08:00<\/span>From Web UI, you can use \u201cFirmware Selection\u201d to achieve the purpose.\r\n\r\nWeb UI path:\r\n\r\nMaintenance ---&gt; Firmware ---&gt; Firmware Selection ---&gt; to press \u201cActive Alternate Image\u201d button.\r\n\r\nCLI command:\r\n\r\nSwitch# firmware\r\n\r\nSwitch (firmware)# swap\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq protocol post-4127 type-faq status-publish hentry faq_cat-protocol\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>How do I modify management VLAN?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">How do I modify management VLAN?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T17:55:52+08:00<\/span>You can change VLAN ID in the IP configuration page\r\n\r\n&nbsp;\r\n\r\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-4129\" src=\"\/rubytech\/wp-content\/uploads\/2016\/01\/faq-300x245.png\" alt=\"faq\" width=\"300\" height=\"245\" \/>\r\n\r\nCLI command: (Suppose to change management VLAN to VLAN10)\r\n\r\nSwitch # ip\r\n\r\nSwitch (ip)# mgmt-vlan 10\r\n\r\nPlease note that you may also need to change the management port\u2019s PVID to the same as management VLAN ID or send packets with the same as management VLAN ID tag that can manage the switch.\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq hardware post-4124 type-faq status-publish hentry faq_cat-hardware\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>How to warm boot via CLI ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">How to warm boot via CLI ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T17:52:18+08:00<\/span>Execute this command \u201creboot\u201c\r\n\r\nSwitch# reboot\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq function post-4121 type-faq status-publish hentry faq_cat-function\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>If we have some questions of specific function , any basic information we can get ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">If we have some questions of specific function , any basic information we can get ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T17:51:36+08:00<\/span>U can check \u201cHelp\u201d button on Web UI , it is usually in the upper right corner\r\n\r\nEvery feature has it\u2019s mapping help page , there are some basic explanation .\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq hardware post-159 type-faq status-publish hentry faq_cat-hardware\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>What kinds of managed interface does this switch support ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">What kinds of managed interface does this switch support ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T17:36:37+08:00<\/span>CLI\r\n\r\nWeb UI\r\n\r\nTelnet\r\n\r\nSNMP\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq software post-158 type-faq status-publish hentry faq_cat-software\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>Which browser user can used when managed device via Web UI ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">Which browser user can used when managed device via Web UI ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T17:38:18+08:00<\/span>IE9+\r\n\r\nEdge\r\n\r\nChrome\r\n\r\nSafari\r\n\r\nFirefox\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq software post-157 type-faq status-publish hentry faq_cat-software\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>How could I prevent this switch looping ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">How could I prevent this switch looping ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T17:43:22+08:00<\/span><ol>\r\n\t<li>U can enable STP\/RSTP\/MSTP (this is an example for setting RSTP on port 2~8 ) :<\/li>\r\n<\/ol>\r\nSwitch(stp)# version rstp\r\n\r\nSwitch(stp)# p-mode 2-8 enable\r\n\r\nSwitch(stp)# sh pconf\r\n\r\n&nbsp;\r\n\r\nPort\u00a0 Mode\u00a0\u00a0\u00a0\u00a0\u00a0 AdminEdge AutoEdge\u00a0 restrRole restrTcn\u00a0 bpduGuard Point2point\r\n\r\n----\u00a0 --------\u00a0 ------------------\u00a0 ------------------\u00a0 ---------------------\r\n\r\nAggr\u00a0 Disabled\u00a0 Disabled\u00a0 Enabled\u00a0\u00a0 Disabled\u00a0 Disabled\u00a0 Disabled\u00a0 Enabled\r\n\r\n&nbsp;\r\n\r\nPort\u00a0 Mode\u00a0\u00a0\u00a0\u00a0\u00a0 AdminEdge AutoEdge\u00a0 restrRole restrTcn\u00a0 bpduGuard Point2point\r\n\r\n----\u00a0 -------- \u00a0------------------\u00a0 ------------------\u00a0 ---------------------\r\n\r\n1\u00a0\u00a0\u00a0\u00a0 Disabled\u00a0 Disabled\u00a0 Enabled\u00a0\u00a0 Disabled\u00a0 Disabled\u00a0 Disabled\u00a0 Auto\r\n\r\n2\u00a0\u00a0\u00a0\u00a0 Enabled\u00a0\u00a0 Disabled\u00a0 Enabled\u00a0\u00a0 Disabled\u00a0 Disabled\u00a0 Disabled\u00a0 Auto\r\n\r\n3\u00a0\u00a0\u00a0\u00a0 Enabled\u00a0\u00a0 Disabled\u00a0 Enabled\u00a0\u00a0 Disabled\u00a0 Disabled\u00a0 Disabled\u00a0 Auto\r\n\r\n4\u00a0\u00a0\u00a0\u00a0 Enabled\u00a0\u00a0 Disabled\u00a0 Enabled\u00a0\u00a0 Disabled\u00a0 Disabled\u00a0 Disabled\u00a0 Auto\r\n\r\n5\u00a0\u00a0\u00a0\u00a0 Enabled\u00a0\u00a0 Disabled\u00a0 Enabled\u00a0\u00a0 Disabled\u00a0 Disabled\u00a0 Disabled\u00a0 Auto\r\n\r\n6\u00a0\u00a0\u00a0\u00a0 Enabled\u00a0\u00a0 Disabled\u00a0 Enabled\u00a0\u00a0 Disabled\u00a0 Disabled\u00a0 Disabled\u00a0 Auto\r\n\r\n7\u00a0\u00a0\u00a0\u00a0 Enabled\u00a0\u00a0 Disabled\u00a0 Enabled\u00a0\u00a0 Disabled\u00a0 Disabled\u00a0 Disabled\u00a0 Auto\r\n\r\n8\u00a0\u00a0\u00a0\u00a0 Enabled\u00a0\u00a0 Disabled\u00a0 Enabled\u00a0\u00a0 Disabled\u00a0 Disabled\u00a0 Disabled\u00a0 Auto\r\n\r\n9\u00a0\u00a0\u00a0\u00a0 Disabled\u00a0 Disabled\u00a0 Enabled\u00a0\u00a0 Disabled\u00a0 Disabled\u00a0 Disabled\u00a0 Auto\r\n\r\n10\u00a0\u00a0\u00a0 Disabled\u00a0 Disabled\u00a0 Enabled\u00a0\u00a0 Disabled\u00a0 Disabled\u00a0 Disabled\u00a0 Auto\r\n\r\nSwitch(stp)#\r\n\r\n&nbsp;\r\n\r\n&nbsp;\r\n\r\n&nbsp;\r\n\r\n&nbsp;\r\n<ol start=\"2\">\r\n\t<li>U can enable loop-protect (this is an example for enable loop-protect )<\/li>\r\n<\/ol>\r\nSwitch# loop-protect\r\n\r\nSwitch(loop-protect)# mode enable\r\n\r\nSwitch(loop-protect)# show config\r\n\r\nLoop Protection\u00a0\u00a0 : Enabled\r\n\r\nTransmission Time : 5\r\n\r\nShutdown Time\u00a0\u00a0\u00a0\u00a0 : 180\r\n\r\n&nbsp;\r\n\r\nPort\u00a0 Mode\u00a0\u00a0\u00a0\u00a0\u00a0 Action\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Transmit\r\n\r\n----\u00a0 --------\u00a0 ----------------\u00a0 --------\r\n\r\n1\u00a0\u00a0\u00a0\u00a0 Enabled\u00a0\u00a0 Shutdown\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Enabled\r\n\r\n2\u00a0\u00a0\u00a0\u00a0 Enabled\u00a0\u00a0 Shutdown\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Enabled\r\n\r\n3\u00a0\u00a0\u00a0\u00a0 Enabled\u00a0\u00a0 Shutdown\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Enabled\r\n\r\n4\u00a0\u00a0\u00a0\u00a0 Enabled\u00a0\u00a0 Shutdown\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Enabled\r\n\r\n5\u00a0\u00a0\u00a0\u00a0 Enabled\u00a0\u00a0 Shutdown\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Enabled\r\n\r\n6\u00a0\u00a0\u00a0\u00a0 Enabled\u00a0\u00a0 Shutdown\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Enabled\r\n\r\n7\u00a0\u00a0\u00a0\u00a0 Enabled\u00a0\u00a0 Shutdown\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Enabled\r\n\r\n8\u00a0\u00a0\u00a0\u00a0 Enabled\u00a0\u00a0 Shutdown\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Enabled\r\n\r\n9\u00a0\u00a0\u00a0\u00a0 Enabled\u00a0\u00a0 Shutdown\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Enabled\r\n\r\n10\u00a0\u00a0\u00a0 Enabled\u00a0\u00a0 Shutdown\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Enabled\r\n\r\n&nbsp;\r\n\r\nNote :\r\n<ol>\r\n\t<li>Do not enable STP\/RSTP\/MSTP and loop-protect on the same port .<\/li>\r\n\t<li>Do not enable loop-protect on bone port (it meaning not directly connect to user )<\/li>\r\n<\/ol>\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq software post-154 type-faq status-publish hentry faq_cat-software\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>What\u2019s default account and password on this switch ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">What\u2019s default account and password on this switch ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T17:41:15+08:00<\/span>Account : admin\r\n\r\nPass :\r\n\r\n(default password is empty )\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq software post-152 type-faq status-publish hentry faq_cat-software\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>What\u2019s default IP address ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">What\u2019s default IP address ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T17:42:55+08:00<\/span>192.168.1.1\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq function post-151 type-faq status-publish hentry faq_cat-function\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>How to increase bandwidth on this switch ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">How to increase bandwidth on this switch ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T17:44:51+08:00<\/span><ol>\r\n\t<li>enable static trunk : (aggregated port 1 and port 2)<\/li>\r\n<\/ol>\r\nSwitch# aggregation\r\n\r\nSwitch(aggregation)# group 1 1-2\r\n\r\nSwitch(aggregation)# sh\r\n\r\nAggregation Mode\r\n\r\n----------------\r\n\r\nSource MAC\u00a0\u00a0\u00a0\u00a0\u00a0 : Enabled\r\n\r\nDestination MAC : Disabled\r\n\r\nIP Address\u00a0\u00a0\u00a0\u00a0\u00a0 : Enabled\r\n\r\nTCP\/UDP Port\u00a0\u00a0\u00a0 : Enabled\r\n\r\n&nbsp;\r\n\r\nGroup ID\u00a0 Name\u00a0\u00a0\u00a0 Type\u00a0\u00a0\u00a0 Configured Ports\u00a0 Aggregated Ports\r\n\r\n--------\u00a0 ------\u00a0 ------\u00a0 ----------------\u00a0 ----------------\r\n\r\n1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 LLAG1\u00a0\u00a0 Static\u00a0 1,2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 None\r\n\r\nSwitch(aggregation)#\r\n<ol start=\"2\">\r\n\t<li>enable LACP : (aggregated port 3 and port 4)<\/li>\r\n<\/ol>\r\nSwitch# lacp\r\n\r\nSwitch(lacp)# mode 3-4 enable\r\n\r\nSwitch(lacp)# sh config\r\n\r\nPort\u00a0 Mode\u00a0\u00a0\u00a0\u00a0\u00a0 Key\u00a0\u00a0\u00a0 Role\r\n\r\n----\u00a0 --------\u00a0 -----\u00a0 ------\r\n\r\n1\u00a0\u00a0\u00a0\u00a0 Disabled\u00a0 Auto\u00a0\u00a0 Active\r\n\r\n2\u00a0\u00a0\u00a0\u00a0 Disabled\u00a0 Auto\u00a0\u00a0 Active\r\n\r\n3\u00a0\u00a0\u00a0\u00a0 Enabled\u00a0\u00a0 Auto\u00a0\u00a0 Active\r\n\r\n4\u00a0\u00a0\u00a0\u00a0 Enabled\u00a0\u00a0 Auto\u00a0\u00a0 Active\r\n\r\n5\u00a0\u00a0\u00a0\u00a0 Disabled\u00a0 Auto\u00a0\u00a0 Active\r\n\r\n6\u00a0\u00a0\u00a0\u00a0 Disabled\u00a0 Auto\u00a0\u00a0 Active\r\n\r\n7\u00a0\u00a0\u00a0\u00a0 Disabled\u00a0 Auto\u00a0\u00a0 Active\r\n\r\n8\u00a0\u00a0\u00a0\u00a0 Disabled\u00a0 Auto\u00a0\u00a0 Active\r\n\r\n9\u00a0\u00a0\u00a0\u00a0 Disabled\u00a0 Auto\u00a0\u00a0 Active\r\n\r\n10\u00a0\u00a0\u00a0 Disabled\u00a0 Auto\u00a0\u00a0 Active\r\n\r\nSwitch(lacp)#\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq software post-150 type-faq status-publish hentry faq_cat-software\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>How to confirm this switch connected to internet well or not ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">How to confirm this switch connected to internet well or not ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T17:49:14+08:00<\/span>Used switch to ping some popular Web site on Internet , like Google .\r\n\r\nThen check it will response or not .\r\n\r\nSwitch# diag\r\n\r\nSwitch(diagnostic)# ping www.google.com\r\n\r\nPING server 74.125.23.99, 56 bytes of data.\r\n\r\n64 bytes from 74.125.23.99: icmp_seq=0, time=60ms\r\n\r\n64 bytes from 74.125.23.99: icmp_seq=1, time=50ms\r\n\r\n64 bytes from 74.125.23.99: icmp_seq=2, time=60ms\r\n\r\n64 bytes from 74.125.23.99: icmp_seq=3, time=70ms\r\n\r\n64 bytes from 74.125.23.99: icmp_seq=4, time=70ms\r\n\r\nSent 5 packets, received 5 OK, 0 bad\r\n\r\nSwitch(diagnostic)#\r\n\r\nFor above case :\u00a0 this switch link to internet well\r\n\r\nIn fail case , user will got response like this :\r\n\r\nSwitch# diag\r\n\r\nSwitch(diagnostic)# ping www.google.com\r\n\r\n*** Invalid IP address: www.google.com\r\n\r\nSwitch(diagnostic)#\r\n\r\nAnd if switch can\u2019t connected to internet , Pls check it\u2019s IP and DNS server correct or not !?\r\n\r\nIf there existed DHCP server , u can enable DHCP , then switch will get IP and DNS server automatic :\r\n\r\nSwitch# ip\r\n\r\nSwitch(ip)# dhcp enable\r\n\r\nSwitch(ip)# sh\r\n\r\nConfigured\u00a0\u00a0\u00a0\u00a0\u00a0 Current\r\n\r\n--------------- ---------------\r\n\r\nDHCP Client\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : Enabled\r\n\r\nIP Address\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : 192.168.3.79\u00a0\u00a0\u00a0 192.168.6.70\r\n\r\nIP Mask\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : 255.255.255.0\u00a0\u00a0 255.255.255.0\r\n\r\nIP Gateway\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : 0.0.0.0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 192.168.6.250\r\n\r\nVLAN ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : 1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1\r\n\r\nDNS Server\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : 0.0.0.0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 168.95.1.1\r\n\r\nDNS Proxy\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : Disabled\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\r\n<div class=\"faq function post-149 type-faq status-publish hentry faq_cat-function\">\r\n\t<section class=\"toggle\">\r\n\t\t<label>How to record all syslog of switch in some server ?<\/label>\r\n\t\t<div class=\"toggle-content\">\r\n\t\t<h3 class=\"entry-title\" style=\"display: none;\">How to record all syslog of switch in some server ?<\/h3><span class=\"vcard\" style=\"display: none;\"><span class=\"fn\"><a href=\"https:\/\/www.rubytech.com.tw\/rubytech\/author\/rubyadmin\/\" rel=\"author\">rubyadmin<\/a><\/span><\/span><span class=\"updated\" style=\"display:none\">2016-01-28T17:50:41+08:00<\/span>Install some syslog server tool on PC (ex: Tftpd) and enable it .\r\n\r\nSetting it via Web :\r\n\r\nPlease configure syslog in the \u201cSyslog ---&gt; Configuration\u201d page , like below :\r\n\r\nServer mode = enable\r\n\r\nServer Address = 192.168.3.250 (server IP)\r\n\r\nSyslog Level = Debug\r\n\r\nU also can setting via CLI:\r\n\r\nSwitch(ip)#\r\n\r\nSwitch#syslog\r\n\r\nSwitch(syslog)# mode enable\r\n\r\nSwitch(syslog)# server 1 192.168.3.250\r\n\r\nSwitch(syslog)# level 7\r\n\r\nSwitch(syslog)# sh config\r\n\r\nServer Mode\u00a0\u00a0\u00a0\u00a0\u00a0 : Enabled\r\n\r\nServer Address 1 : 192.168.3.250\r\n\r\nServer Address 2 :\r\n\r\nSyslog Level\u00a0\u00a0\u00a0\u00a0 : Debug\r\n\r\nSwitch(syslog)#\t\t<\/div>\r\n\t<\/section>\r\n<\/div>\r\n\t\t<\/div>\r\n\r\n\t\t\r\n\t<\/div>\r\n\r\n\t\r\n\t<\/div>[vc_empty_space height=&#8221;1px&#8221;][vc_separator color=&#8221;custom&#8221; gap=&#8221;tall&#8221; gradient=&#8221;yes&#8221;][\/vc_column][\/vc_row][vc_row][vc_column]\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f4039-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"4039\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/rubytech\/wp-json\/wp\/v2\/pages\/3103#wpcf7-f4039-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Contact form\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"4039\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.6\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f4039-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/><input type=\"hidden\" name=\"_wpcf7_recaptcha_response\" value=\"\" \/>\n<\/fieldset>\n<div class=\"row\" id=\"contact-fin\">\n<div class=\"col-xs-2 col-sm-2\">\n<img decoding=\"async\" class=\"ts-button  ts-button-rounded ts-button-default glow ts-button-large\" style=\"border-radius:50px;width:60px!important;height:60px!important;margin-left: 5px;margin-top: 5px;\" src=\"https:\/\/www.rubytech.com.tw\/rubytech\/assets\/images\/ODM Ethernet Switch.png\" alt=\"ODM-Ethernet-Switch\">\n<\/div>\n<div class=\"col-xs-10 col-sm-10\" style=\"margin-left:-15px\">\n<h2 class=\"short\"><strong>Contact<\/strong> Rubytech<\/h2>\n<h4 class=\"subtitle\" style=\"margin-top:-18px; color:#2196F3; margin-bottom: 25px;\">Have any questions or need more information? We're here to help! Simply fill out the form below, and our team will respond promptly to assist you with inquiries, feedback, or requests. Let us know how we can support you and your business. We look forward to connecting with you soon!<\/h4>  \n<\/div>\n<\/div>\n<div class=\"row\" id=\"contant-start\">\n<div class=\"col-xs-2 col-sm-1\">\n<img decoding=\"async\" class=\"ts-button  ts-button-rounded ts-button-default glow ts-button-large\" style=\"border-radius:50px;width:60px!important;height:60px!important;margin-left: 5px;margin-top: 5px;\" src=\"https:\/\/www.rubytech.com.tw\/rubytech\/assets\/images\/ODM Ethernet Switch.png\" alt=\"ODM-Ethernet-Switch\">\n<\/div>\n<div class=\"col-xs-10 col-sm-11\" style=\"margin-left:-15px\">\n<h2 class=\"short\"><strong>Contact<\/strong> Rubytech<\/h2>\n<h4 class=\"subtitle\" style=\"margin-top:-18px; color:#2196F3; margin-bottom: 25px;\">Contact our team for questions, support, or feedback by filling in the form below. We will get back to you as soon as possible. Thank you!<\/h4>  \n<\/div>\n<\/div>\n<div class=\"row\">\n    <div class=\"col-md-6\">\n        <div class=\"form-group\">\n            <label for=\"contact-name\">Business Category <span class=\"red\">*<\/span><\/label>\n            <span class=\"wpcf7-form-control-wrap\" data-name=\"client-category\"><select class=\"wpcf7-form-control wpcf7-select wpcf7-validates-as-required form-control\" id=\"contact-category\" aria-required=\"true\" aria-invalid=\"false\" name=\"client-category\"><option value=\"\"><\/option><option value=\"Distributor\">Distributor<\/option><option value=\"SI\">SI<\/option><option value=\"Manufacturer\">Manufacturer<\/option><option value=\"Dealer \/ Reseller\">Dealer \/ Reseller<\/option><option value=\"ISP\">ISP<\/option><option value=\"End User\">End User<\/option><option value=\"Others\">Others<\/option><\/select><\/span>\n        <\/div>\n    <\/div>\n    <div class=\"col-md-6\">\n        <div class=\"form-group\">\n            <label for=\"contact-name\">Company <span class=\"red\">*<\/span><\/label>\n             <span class=\"wpcf7-form-control-wrap\" data-name=\"client-company\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required form-control\" id=\"contact-company\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"client-company\" \/><\/span>\n        <\/div>\n    <\/div>\n<\/div>  \n<div class=\"row\"> \n    <div class=\"col-md-6\">\n        <div class=\"form-group\">\n            <label for=\"contact-name\">Country <span class=\"red\">*<\/span><\/label>\n             <span class=\"wpcf7-form-control-wrap\" data-name=\"client-country\"><select class=\"wpcf7-form-control wpcf7-select wpcf7-validates-as-required form-control\" id=\"contact-country\" aria-required=\"true\" aria-invalid=\"false\" name=\"client-country\"><option value=\"\"><\/option><option value=\"Afghanistan\">Afghanistan<\/option><option value=\"Albania\">Albania<\/option><option value=\"Algeria\">Algeria<\/option><option value=\"American Samoa\">American Samoa<\/option><option value=\"Andorra\">Andorra<\/option><option value=\"Angola\">Angola<\/option><option value=\"Anguilla\">Anguilla<\/option><option value=\"Antarctica\">Antarctica<\/option><option value=\"Antigua and Barbuda\">Antigua and Barbuda<\/option><option value=\"Argentina\">Argentina<\/option><option value=\"Armenia\">Armenia<\/option><option value=\"Aruba\">Aruba<\/option><option value=\"Australia\">Australia<\/option><option value=\"Austria\">Austria<\/option><option value=\"Azerbaijan\">Azerbaijan<\/option><option value=\"Bahamas\">Bahamas<\/option><option value=\"Bahrain\">Bahrain<\/option><option value=\"Bangladesh\">Bangladesh<\/option><option value=\"Barbados\">Barbados<\/option><option value=\"Belarus\">Belarus<\/option><option value=\"Belgium\">Belgium<\/option><option value=\"Belize\">Belize<\/option><option value=\"Benin\">Benin<\/option><option value=\"Bermuda\">Bermuda<\/option><option value=\"Bhutan\">Bhutan<\/option><option value=\"Bolivia\">Bolivia<\/option><option value=\"Bosnia and Herzegovina\">Bosnia and Herzegovina<\/option><option value=\"Botswana\">Botswana<\/option><option value=\"Bouvet Island\">Bouvet Island<\/option><option value=\"Brazil\">Brazil<\/option><option value=\"British Indian Ocean Territory\">British Indian Ocean Territory<\/option><option value=\"British Virgin Islands\">British Virgin Islands<\/option><option value=\"Brunei\">Brunei<\/option><option value=\"Bulgaria\">Bulgaria<\/option><option value=\"Burkina Faso\">Burkina Faso<\/option><option value=\"Burundi\">Burundi<\/option><option value=\"Cambodia\">Cambodia<\/option><option value=\"Cameroon\">Cameroon<\/option><option value=\"Canada\">Canada<\/option><option value=\"Cape Verde\">Cape Verde<\/option><option value=\"Cayman Islands\">Cayman Islands<\/option><option value=\"Central African Republic\">Central African Republic<\/option><option value=\"Chad\">Chad<\/option><option value=\"Chile\">Chile<\/option><option value=\"China\">China<\/option><option value=\"Christmas Island\">Christmas Island<\/option><option value=\"Cocos (Keeling) Islands\">Cocos (Keeling) Islands<\/option><option value=\"Colombia\">Colombia<\/option><option value=\"Comoros\">Comoros<\/option><option value=\"Congo\">Congo<\/option><option value=\"Congo - Democratic Republic of\">Congo - Democratic Republic of<\/option><option value=\"Cook Islands\">Cook Islands<\/option><option value=\"Costa Rica\">Costa Rica<\/option><option value=\"Cote d&#039;Ivoire\">Cote d&#039;Ivoire<\/option><option value=\"Croatia\">Croatia<\/option><option value=\"Cuba\">Cuba<\/option><option value=\"Cyprus\">Cyprus<\/option><option value=\"Czech Republic\">Czech Republic<\/option><option value=\"Denmark\">Denmark<\/option><option value=\"Djibouti\">Djibouti<\/option><option value=\"Dominica\">Dominica<\/option><option value=\"Dominican Republic\">Dominican Republic<\/option><option value=\"East Timor\">East Timor<\/option><option value=\"Ecuador\">Ecuador<\/option><option value=\"Egypt\">Egypt<\/option><option value=\"El Salvador\">El Salvador<\/option><option value=\"Equitorial Guinea\">Equitorial Guinea<\/option><option value=\"Eritrea\">Eritrea<\/option><option value=\"Estonia\">Estonia<\/option><option value=\"Ethiopia\">Ethiopia<\/option><option value=\"Falkland Islands (Islas Malvinas)\">Falkland Islands (Islas Malvinas)<\/option><option value=\"Faroe Islands\">Faroe Islands<\/option><option value=\"Fiji\">Fiji<\/option><option value=\"Finland\">Finland<\/option><option value=\"France\">France<\/option><option value=\"French Guyana\">French Guyana<\/option><option value=\"French Polynesia\">French Polynesia<\/option><option value=\"French Southern and Antarctic Lands\">French Southern and Antarctic Lands<\/option><option value=\"Gabon\">Gabon<\/option><option value=\"Gambia\">Gambia<\/option><option value=\"Gaza Strip\">Gaza Strip<\/option><option value=\"Georgia\">Georgia<\/option><option value=\"Germany\">Germany<\/option><option value=\"Ghana\">Ghana<\/option><option value=\"Gibraltar\">Gibraltar<\/option><option value=\"Greece\">Greece<\/option><option value=\"Greenland\">Greenland<\/option><option value=\"Grenada\">Grenada<\/option><option value=\"Guadeloupe\">Guadeloupe<\/option><option value=\"Guam\">Guam<\/option><option value=\"Guatemala\">Guatemala<\/option><option value=\"Guernsey\">Guernsey<\/option><option value=\"Guinea\">Guinea<\/option><option value=\"Guinea-Bissau\">Guinea-Bissau<\/option><option value=\"Guyana\">Guyana<\/option><option value=\"Haiti\">Haiti<\/option><option value=\"Heard Island and McDonald Islands\">Heard Island and McDonald Islands<\/option><option value=\"Holy See (Vatican City)\">Holy See (Vatican City)<\/option><option value=\"Honduras\">Honduras<\/option><option value=\"Hong Kong\">Hong Kong<\/option><option value=\"Hungary\">Hungary<\/option><option value=\"Iceland\">Iceland<\/option><option value=\"India\">India<\/option><option value=\"Indonesia\">Indonesia<\/option><option value=\"Iran\">Iran<\/option><option value=\"Iraq\">Iraq<\/option><option value=\"Ireland\">Ireland<\/option><option value=\"Isle of Man\">Isle of Man<\/option><option value=\"Israel\">Israel<\/option><option value=\"Italy\">Italy<\/option><option value=\"Jamaica\">Jamaica<\/option><option value=\"Japan\">Japan<\/option><option value=\"Jersey\">Jersey<\/option><option value=\"Jordan\">Jordan<\/option><option value=\"Kazakhstan\">Kazakhstan<\/option><option value=\"Kenya\">Kenya<\/option><option value=\"Kiribati\">Kiribati<\/option><option value=\"Kuwait\">Kuwait<\/option><option value=\"Kyrgyzstan\">Kyrgyzstan<\/option><option value=\"Laos\">Laos<\/option><option value=\"Latvia\">Latvia<\/option><option value=\"Lebanon\">Lebanon<\/option><option value=\"Lesotho\">Lesotho<\/option><option value=\"Liberia\">Liberia<\/option><option value=\"Libya\">Libya<\/option><option value=\"Liechtenstein\">Liechtenstein<\/option><option value=\"Lithuania\">Lithuania<\/option><option value=\"Luxembourg\">Luxembourg<\/option><option value=\"Macau\">Macau<\/option><option value=\"Macedonia - The Former Yugoslav Republic of\">Macedonia - The Former Yugoslav Republic of<\/option><option value=\"Madagascar\">Madagascar<\/option><option value=\"Malawi\">Malawi<\/option><option value=\"Malaysia\">Malaysia<\/option><option value=\"Maldives\">Maldives<\/option><option value=\"Mali\">Mali<\/option><option value=\"Malta\">Malta<\/option><option value=\"Marshall Islands\">Marshall Islands<\/option><option value=\"Martinique\">Martinique<\/option><option value=\"Mauritania\">Mauritania<\/option><option value=\"Mauritius\">Mauritius<\/option><option value=\"Mayotte\">Mayotte<\/option><option value=\"Mexico\">Mexico<\/option><option value=\"Micronesia - Federated States of\">Micronesia - Federated States of<\/option><option value=\"Moldova\">Moldova<\/option><option value=\"Monaco\">Monaco<\/option><option value=\"Mongolia\">Mongolia<\/option><option value=\"Montserrat\">Montserrat<\/option><option value=\"Morocco\">Morocco<\/option><option value=\"Mozambique\">Mozambique<\/option><option value=\"Myanmar\">Myanmar<\/option><option value=\"Namibia\">Namibia<\/option><option value=\"Nauru\">Nauru<\/option><option value=\"Nepal\">Nepal<\/option><option value=\"Netherlands\">Netherlands<\/option><option value=\"Netherlands Antilles\">Netherlands Antilles<\/option><option value=\"New Caledonia\">New Caledonia<\/option><option value=\"New Zealand\">New Zealand<\/option><option value=\"Nicaragua\">Nicaragua<\/option><option value=\"Niger\">Niger<\/option><option value=\"Nigeria\">Nigeria<\/option><option value=\"Niue\">Niue<\/option><option value=\"Norfolk Island\">Norfolk Island<\/option><option value=\"Northern Mariana Islands\">Northern Mariana Islands<\/option><option value=\"North Korea\">North Korea<\/option><option value=\"Norway\">Norway<\/option><option value=\"Oman\">Oman<\/option><option value=\"Pakistan\">Pakistan<\/option><option value=\"Palau\">Palau<\/option><option value=\"Panama\">Panama<\/option><option value=\"Papua New Guinea\">Papua New Guinea<\/option><option value=\"Paraguay\">Paraguay<\/option><option value=\"Peru\">Peru<\/option><option value=\"Philippines\">Philippines<\/option><option value=\"Pitcairn Islands\">Pitcairn Islands<\/option><option value=\"Poland\">Poland<\/option><option value=\"Portugal\">Portugal<\/option><option value=\"Puerto Rico\">Puerto Rico<\/option><option value=\"Qatar\">Qatar<\/option><option value=\"Reunion\">Reunion<\/option><option value=\"Romania\">Romania<\/option><option value=\"Russia\">Russia<\/option><option value=\"Rwanda\">Rwanda<\/option><option value=\"Saint Kitts and Nevis\">Saint Kitts and Nevis<\/option><option value=\"Saint Lucia\">Saint Lucia<\/option><option value=\"Saint Vincent and the 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value=\"Sri Lanka\">Sri Lanka<\/option><option value=\"St. Helena\">St. Helena<\/option><option value=\"St. Pierre and Miquelon\">St. Pierre and Miquelon<\/option><option value=\"Sudan\">Sudan<\/option><option value=\"Suriname\">Suriname<\/option><option value=\"Svalbard\">Svalbard<\/option><option value=\"Swaziland\">Swaziland<\/option><option value=\"Sweden\">Sweden<\/option><option value=\"Switzerland\">Switzerland<\/option><option value=\"Syria\">Syria<\/option><option value=\"Taiwan\">Taiwan<\/option><option value=\"Tajikistan\">Tajikistan<\/option><option value=\"Tanzania\">Tanzania<\/option><option value=\"Thailand\">Thailand<\/option><option value=\"Timor-Leste\">Timor-Leste<\/option><option value=\"Togo\">Togo<\/option><option value=\"Tokelau\">Tokelau<\/option><option value=\"Tonga\">Tonga<\/option><option value=\"Trinidad and Tobago\">Trinidad and Tobago<\/option><option value=\"Tunisia\">Tunisia<\/option><option value=\"Turkey\">Turkey<\/option><option value=\"Turkmenistan\">Turkmenistan<\/option><option value=\"Turks and Caicos Islands\">Turks and Caicos Islands<\/option><option value=\"Tuvalu\">Tuvalu<\/option><option value=\"Uganda\">Uganda<\/option><option value=\"Ukraine\">Ukraine<\/option><option value=\"United Arab Emirates\">United Arab Emirates<\/option><option value=\"United Kingdom\">United Kingdom<\/option><option value=\"United States\">United States<\/option><option value=\"United States Minor Outlying Islands\">United States Minor Outlying Islands<\/option><option value=\"United States Virgin Islands\">United States Virgin Islands<\/option><option value=\"Uruguay\">Uruguay<\/option><option value=\"Uzbekistan\">Uzbekistan<\/option><option value=\"Vanuatu\">Vanuatu<\/option><option value=\"Venezuela\">Venezuela<\/option><option value=\"Vietnam\">Vietnam<\/option><option value=\"Wallis and Futuna\">Wallis and Futuna<\/option><option value=\"West Bank\">West Bank<\/option><option value=\"Western Sahara\">Western Sahara<\/option><option value=\"Yemen\">Yemen<\/option><option value=\"Zambia\">Zambia<\/option><option value=\"Zimbabwe\">Zimbabwe<\/option><\/select><\/span>\n        <\/div>\n    <\/div>\n    <div class=\"col-md-6\">\n        <div class=\"form-group\">\n            <label for=\"contact-name\">Company Website<\/label>\n             <span class=\"wpcf7-form-control-wrap\" data-name=\"client-web\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text form-control\" id=\"contact-web\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"client-web\" \/><\/span>\n        <\/div>\n    <\/div>\n<\/div>  \n<div class=\"row\"> \n    <div class=\"col-md-6\">\n        <div class=\"form-group\">\n            <label for=\"contact-category\">Job Title <span class=\"red\">*<\/span><\/label>\n            <span class=\"wpcf7-form-control-wrap\" data-name=\"client-jobtitle\"><select class=\"wpcf7-form-control wpcf7-select wpcf7-validates-as-required form-control\" 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