RE: ip6-localhost (::1) 2990.86 ms !H -> Why ?

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On Sun, 18 Nov 2001, NDSoftware wrote:
> > > traceroute to 6bone.net (3ffe:b00:c18:1::10) from 
> > 3ffe:8271:2101:1::1,
> > > 30 hops max, 16 byte packets
> > >  1  ip6-localhost (::1)  2990.86 ms !H  2999.53 ms !H  2999.92 ms !
> > > 
> > > Routes on Woody:
> > > 
> > > Kernel IPv6 routing table
> > > Destination                                 Next Hop
> > > Flags Metric Ref    Use Iface
> > > ::1/128                                     ::
> > > U     0      0        0 lo      

> > > 3ffe:8271:2101:1::1/128                     ::
> > > U     0      8        1 lo      
> > > 3ffe:8271:2101:1::/64                       ::
> > > UA    256    594       0 eth0    

Please also remove these two routes above (at least the former), as 
pointed out in the 6bone etc lists.

> > > 2000::/3                                    ::
> > > U     1      0        0 eth0    
> > 
> > The last one is the problem; effectively you're saying all 
> > addresses are
> > on-link, and this is better than the default route to your 
> > router box.  
> > Remove it and the 6bone should work just fine.
> 
> Not if i remove this route:
> 
> connect: Network is unreachable

Try ping6'ing the link-local address of your gateway.

FWIW, autoconfigured IPv6 node's routing table should look something like:

--8<--
Kernel IPv6 routing table
Destination                                 Next Hop                                Flags Metric Ref    Use Iface
::1/128                                     ::                                      U     0      0        0 lo      
2001:xxx:10:10:250:4ff:fe6a:db55/128        ::                                      U     0      5        0 lo      
2001:xxx:10:10::/64                         ::                                      UA    256    21123    0 eth0    
fe80::250:4ff:fe6a:db55/128                 ::                                      U     0      1        0 lo      
fe80::/10                                   ::                                      UA    256    0        0 eth0    
ff00::/8                                    ::                                      UA    256    0        0 eth0    
::/0                                        fe80::200:f8ff:fe08:3e0d                UGDA  1024   7        0 eth0    
--8<--

Here 250:4ff:fe6a:db55 addresses are local.

-- 
Pekka Savola                 "Tell me of difficulties surmounted,
Netcore Oy                   not those you stumble over and fall"
Systems. Networks. Security.  -- Robert Jordan: A Crown of Swords

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