Hello aparna0123,Need some clarity here, Has service provide allocated /30 IP address for WAN ? If you are using copper 1GE WAN interface, What would be the point to point IP  at your end of WAN interface and service provider end ? Not sure are you u...

Hello,DAI inspects all ARP packets on untrusted interfaces, it checks incoming APR packets against a trusted database, which is populated by DHCP snoopingLet us assume Host A is in VLAN 10, and access switches are connected back to back with G0/1 int...

Configure next-hop self in R3 toward R4 (ie 10.0.0.14)