Used switch to ping some popular Web site on Internet , like Google .
Then check it will response or not .
Switch# diag
Switch(diagnostic)# ping www.google.com
PING server 74.125.23.99, 56 bytes of data.
64 bytes from 74.125.23.99: icmp_seq=0, time=60ms
64 bytes from 74.125.23.99: icmp_seq=1, time=50ms
64 bytes from 74.125.23.99: icmp_seq=2, time=60ms
64 bytes from 74.125.23.99: icmp_seq=3, time=70ms
64 bytes from 74.125.23.99: icmp_seq=4, time=70ms
Sent 5 packets, received 5 OK, 0 bad
Switch(diagnostic)#
For above case : this switch link to internet well
In fail case , user will got response like this :
Switch# diag
Switch(diagnostic)# ping www.google.com
*** Invalid IP address: www.google.com
Switch(diagnostic)#
And if switch can’t connected to internet , Pls check it’s IP and DNS server correct or not !?
If there existed DHCP server , u can enable DHCP , then switch will get IP and DNS server automatic :
Switch# ip
Switch(ip)# dhcp enable
Switch(ip)# sh
Configured Current
————— —————
DHCP Client : Enabled
IP Address : 192.168.3.79 192.168.6.70
IP Mask : 255.255.255.0 255.255.255.0
IP Gateway : 0.0.0.0 192.168.6.250
VLAN ID : 1 1
DNS Server : 0.0.0.0 168.95.1.1
DNS Proxy : Disabled