[c-nsp] ipv6 tunnels and static routes

[Pierfrancesco Caci]

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

    > On 2005-03-31, Pierfrancesco Caci <p.caci at seabone.net> wrote:
    > [6PE Setup]

    >> Pings and traceroutes done on the GSR where the tunnel is defined work properly:
    > [...]
    >> ...while from another router:
    >> 
    >> R_7206A-MI_MM_19#ping 2001:41A8:604::1  
    >> 
    >> Type escape sequence to abort.
    >> Sending 5, 100-byte ICMP Echos to 2001:41A8:604::1, timeout is 2 seconds:
    >> .....
    >> Success rate is 0 percent (0/5)
    >> 
    >> R_7206A-MI_MM_19#trace 2001:41A8:604::1  
    >> 
    >> Type escape sequence to abort.
    >> Tracing the route to 2001:41A8:604::1
    >> 
    >> 1 2001:41A8:600::1E 12 msec 8 msec 12 msec
    >> 2  *  *  * 

    > I have never used 6PE so I'm not really sure, but I guess it could be
    > connected with the source address selection of your second cisco. Cisco
    > chooses the IPv6 address of the egress interface as source address for
    > your trace and ping. If the egress interface has no IPv6 address it
    > might become confused and use something like mapped addresses and would
    > break.

well it should use the loopback address if the egress interface
doesn't have one, or not ?



    > When you enter traceroute without options it will ask you for a source
    > address, try using a local address to R_7206A-MI_MM_19 there.

Now this is crazy. Why doesn't it give me the option when I write
"trace ipv6" like it does for "trace ip" ? CLI BUG!!!!

Anyway, I tried forcing the use of the loopback address and also the
address of another interface. No change, it still doesn't go through.


Thanks

Pf


-- 


-------------------------------------------------------------------------------
 Pierfrancesco Caci | Network & System Administrator - INOC-DBA: 6762*PFC
 p.caci at seabone.net | Telecom Italia Sparkle - http://etabeta.noc.seabone.net/
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