[c-nsp] Debug icmp for vrf

[CiscoNSP List]

Hi Everyone,



Had a bit of a google, but couldnt find anything useful, so hoping someone on the list can assist :)



We have a weird problem with a customer tail - Customer has tried connecting 2 different Cisco 1900's (In case 1st was faulty), very basic config, no dot1q, no natting, no acl's, no firewalling - We can see there mac and arp(For the correct WAN IP), but we cant ping them, and they cant ping us....If they connect a laptop to the service and give it the same IP as is on the 2 x 1900's, we can ping them, and they can ping us.



To throw another spanner in the works, if we give a Laptop the same WAN IP as our Core, and connect it to the 1900's we can ping the 1900's WAN (So they dont appear faulty)



debug ip icmp on the CE, we see nothing when pinging from CE WAN -> US, or US -> CE WAN.....If we try pinging something on the cust LAN, we see icmp debug logs.....So it looks like (For some bizarre reason), that when the 1900's are connected, we can see MAC, but cannot pass any L3 traffic, but connect a Laptop, we can.



The "tail" is provided by a third party, and they are investigating from there side, but Id like to exhaust all possibilities on our side also - Is there any "vrf" icmp debugging options I could run on our PE..debug ip icmp ? doesnt give any "vrf" options.



Any suggestions/assistance is greatly appreciated.



Cheers.