[c-nsp] ipv6 tunnels and static routes

[Pierfrancesco Caci]

:-> "Bernhard" == Bernhard Schmidt <berni at birkenwald.de> writes:


    > If I read your previous mail correctly you have

    > CUST <Tunnel> RA <6PE/MPLS> RB

yes

    > and try to trace from RB to CUST, you see RA but CUST no more, right?

yes, doing a trace from RB, the last hop (and the only, actually) is
the loopback of RA

    > Could you run a tcpdump or similar on the customer's box to see whether
    > the request or the reply is dropped?

This is what my friend sees if I ping the far end of the tunnel:

13:06:52.251584 mil19-loop0-v6.mil.seabone.net > 2001:41a8:600:2::6: icmp6: echo
                   request seq 2
13:06:52.251602 2001:41a8:600:2::6 > mil19-loop0-v6.mil.seabone.net: icmp6: echo
                   reply seq 2


...while he sees nothing at all if I ping an address in the /48 that I
route over the tunnel. Looks like traffic is dropped on the GSR.


Pf



-- 


-------------------------------------------------------------------------------
 Pierfrancesco Caci | Network & System Administrator - INOC-DBA: 6762*PFC
 p.caci at seabone.net | Telecom Italia Sparkle - http://etabeta.noc.seabone.net/
     Linux paperino 2.4.20 #1 Mon Dec 2 17:02:14 CET 2002 i686 GNU/Linux