[j-nsp] Traceroute Throught MPLS Core

[david.roy at orange-ftgroup.com]

We experienced the PR/396280 in release 8.1 (we have the icmp-tunneling feature enable and forwarding per packet load balancing). Now we are in 8.4R4 and all works fine. 

On a P routeur, do you see the Packet with the TTL = 1 punted to the RE : "monitor interface traffic <incoming_interface>". Do you have a firewal filter configured on the lo0 ? 

Regards
David


-----Message d'origine-----
De : juniper-nsp-bounces at puck.nether.net [mailto:juniper-nsp-bounces at puck.nether.net] De la part de Mark Tinka
Envoyé : mardi 13 janvier 2009 10:37
À : Juniper-Nsp
Objet : [j-nsp] Traceroute Throught MPLS Core

Hi all.

We recently moved some Cisco P routers over to Juniper.

Since then, we've been seeing [* * *] for traceroute packets hitting the P routers from anywhere outside the MPLS domain (there's no issue for PE routers tracerouting within and outside the domain).

This was working fine before with the Cisco's. We've pretty much replicated the IOS MPLS configuration for JunOS, and MPLS forwarding in the core is working fine.

We've tried to use the ICMP Message Tunneling feature, to no avail.

We've also seen PR/396280 which looks similar to our case, but uncertain whether it's related.

We are running JunOS 9.3R2.8.

All help appreciated.

Cheers,

Mark.

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