(usagi-users 01090) Strange Problems

[Marcus Buettemeyer <marcus@xxxxxxxxxxxxxxx>]

Hello usagi-users,

I'm trying to solve a problem involving 2 Linux Machines and a freenet6 
dynamic tunnel. The tunnel uses the freenet6 TunnelSetupProtocol(TSP) and 
works as a "sit1" Interface with a /48 network (3ffe:b80:5c7::) behind it.
I use a small Testscript which starts with:
---
#/bin/bash
traceroute6 6b1.ams6.nl.uu.net
ping6 -c 5 quake.ipv6.viagenie.qc.ca
---
If I start the script on a host BEHIND my freenet6 Gateway, I get the 
following:
---
[root@server root]# ./testv6
traceroute to 6b1.ams6.nl.uu.net (3ffe:2500:0:100::1) from 
3ffe:b80:5c7:1:250:56ff:fe91:1, 30 hops max, 16 byte packets
 1  holygate.holylane.de (3ffe:b80:5c7:1::1)  5.047 ms !H  1.406 ms 
!H  1.306 ms !H
PING quake.ipv6.viagenie.qc.ca(quake.ipv6.viagenie.qc.ca) 56 data bytes
From holygate.holylane.de: Destination unreachable: Address unreachable
[....and so on...]
---
If I start the Script ON my Gateway (holygate.holylane.de which originates 
the above ICMPv6 errors) all works fine, I reach both Server. AFTER I've 
done it on the Gateway it ALSO works on the host behind the Gateway...but 
only for a limited period of time....
Routing Tables and Interface Configuration look OK, LAN Traffic is OK for 
all Hosts, 6bone Traffic is OK from the Gateway...I basically have no idea 
where to look for further debugging. Any hints and (weird) ideas welcome ;-)


Thanks in advance

-mb


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