Tom Eastep wrote: > Laurent CARON wrote: >> Hi, >> >> I'm currently facing a rather strange problem. >> >> I did order a dedicated server at a hosting company. >> >> This server is provided with ipv4 and ipv6 connectivity. >> >> The default ipv6 gateway is given through radvd (from what i've seen in >> tcpdump logs): >> >> 21:17:25.260848 IP6 fe80::215:2cff:fe6e:b000 > ip6-allnodes: ICMP6, >> router advertisement, length 64 >> >> default via fe80::215:2cff:fe6e:b000 dev eth0 proto kernel metric 1024 >> expires 1797sec mtu 1500 advmss 1440 hoplimit 64 >> >> If I start shorewall, this default route immediately disappears thus >> preventing any ipv6 communication. >> >> I think my setup might block ipv6 router advertisment messages. > > Unless you explicitly block these messages, Shorewall allows them.
You can look at /usr/share/shorewall6/action.AllowICMPs to see the icmp6
types that Shorewall allows.
If the default route is immediately disappearing as Shorewall6 starts,
it would be useful if you could forward a trace of Shorewall6 startup:
shorewall6 trace start 2> trace.txt
-Tom
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Tom Eastep \ When I die, I want to go like my Grandfather who
Shoreline, \ died peacefully in his sleep. Not screaming like
Washington, USA \ all of the passengers in his car
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