What is the major difference between these two commands:
ping vrf ABC 126.96.36.199
ping vrf ABC 188.8.131.52 source vlan 6
I am able to ping a voice server from 6509 router with the second command but not with the first one.There is just one vlan(vl 6) is configured in this vrf.
and imp to note,im able to ping other boice server with the 1st command itself,i.e. without source vlan 6.
Please tell me the difference and possible reason for this to happen