Hi,

I configured the sub-interfaces of Router 2621(IOS 12.7(r)):

interface fa 0/0.1
encaps isl 1
ip address 10.10.1.254 255.255.255.0

interface fa 0/0.2
encaps isl 2
ip address 10.10.2.254 255.255.255.0

interface fa 0/0.3
encaps isl 3
ip address 10.10.3.254 255.255.255.0



interface fa 0/1.1
encaps isl 1
ip address 10.20.1.254 255.255.255.0

interface fa 0/1.2
encaps isl 1
ip address 10.20.2.254 255.255.255.0


interface fa 0/1.3
encaps isl 1
ip address 10.20.3.254 255.255.255.0




Why I can not ping from any interface to other interfaces ( or vice vesa ) ?

How to solve it ?


Thank you
Benson