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

NDSoftware extml@ndsoftware.net
Sun, 18 Nov 2001 10:44:04 +0100


> -----Original Message-----
> From: Flavio Villanustre [mailto:lists@geminis.myip.org] 
> Sent: Sunday, November 18, 2001 5:58 AM
> To: NDSoftware
> Cc: 6bone@ISI.EDU; debian-ipv6@lists.debian.org; users@ipv6.org
> Subject: Re: ip6-localhost (::1) 2990.86 ms !H -> Why ?
> 
> 
> Hi,
> 
> it looks like you have a route to 3ffe:8271:2101:1::1/128 
> pointed to your
> loopback interface:
> 
> 
> > 3ffe:8271:2101:1::1/128                    :: U     0      
> 0        0 lo      
> 
> That's odd and the cause of trouble. Just remove it and the 
> less specific 
> route to 3ffe:8271:2101:1::/64 thru eth0 will be used in your 
> traceroute.

route -A inet6 del 3ffe:8271:2101:1::1/128 dev lo
SIOCDELRT: No such process

I can't remove it.

If i add a another ip to eth0 et /128 route for lo will be created :(

Thanks
> 
> Regards,
> 
> Flavio.
> 
> 
> 
> On Sat, 17 Nov 2001, NDSoftware wrote:
> 
> > Hello,
> > 
> > I have a problem on a machine (with Linux Debian Woody).
> > I can't ping (or trace) the next router or 6bone from it.
> > 
> > 
> > Trace 6bone from Woody:
> > 
> > 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    
> > 2000::/3                                    ::
> > U     1      0        0 eth0    
> > fe80::2d0:70ff:fe01:811b/128                ::
> > U     0      5        0 lo      
> > fe80::/10                                   ::
> > UA    256    0        0 eth0    
> > ff00::/8                                    ::
> > UA    256    0        0 eth0    
> > ::/0                                        fe80::a0:2434:1d91
> > UGDA  1024   34       0 eth0 
> > 
> > Beetween 6bone and Woody i have a router who have my IPv6 over IPv4
> > tunnel, this router work without problem and Potato (eth1) 
> connected on
> > it too. Only Woody (eth2) don't work.
> > 
> > Routes on Router:
> > 
> > Kernel IPv6 routing table
> > Destination                                 Next Hop
> > Flags Metric Ref    Use Iface
> > ::1/128                                     ::
> > U     0      4        0 lo      
> > ::10.0.0.1/128                              ::
> > U     0      0        0 lo      
> > ::10.0.2.1/128                              ::
> > U     0      0        0 lo      
> > ::10.0.10.1/128                             ::
> > U     0      0        0 lo      
> > ::62.4.18.114/128                           ::
> > U     0      0        0 lo      
> > ::62.4.22.213/128                           ::
> > U     0      0        0 lo      
> > ::127.0.0.1/128                             ::
> > U     0      0        0 lo      
> > ::/96                                       ::
> > U     256    0        0 sit0    
> > 2000::/16                                   fe80::d5ba:2246
> > UG    1      0        0 sit1    
> > 2001::/16                                   fe80::d5ba:2246
> > UG    1      0        0 sit1    
> > 2002::/16                                   fe80::d5ba:2246
> > UG    1      0        0 sit1    
> > 3ffe:8271:1000:20::1/128                    ::
> > U     0      0        0 lo      
> > 3ffe:8271:1000:20::/64                      ::
> > UA    256    0        0 eth0    
> > 3ffe:8271:1000:21::1/128                    ::
> > U     0      89080       0 lo      
> > 3ffe:8271:1000:21::/64                      ::
> > UA    256    0        0 eth1    
> > 3ffe:8271:1000:22::1/128                    ::
> > U     0      21       0 lo      
> > 3ffe:8271:1000:22::/64                      ::
> > UA    256    0        0 eth2    
> > 3ffe:8271:1000:2f::1/128                    ::
> > U     0      0        0 lo      
> > 3ffe:8271:1000:30::1/128                    3ffe:8271:1000:30::1
> > UC    0      2665       0 eth1    
> > 3ffe:8271:1000:30::/64                      ::
> > U     1      0        0 eth1    
> > 3ffe:8271:1000:3f::/64                      ::
> > U     1      0        0 eth1    
> > 3ffe:8271:10ff:11::2/128                    ::
> > U     0      2162       0 lo      
> > 3ffe:8271:10ff:11::/64                      ::
> > UA    256    18       1 sit1    
> > 3ffe:8271:2101:1::/64                       ::
> > U     1      0        0 eth2    
> > 3ffe::/16                                   fe80::d5ba:2246
> > UG    1      312       0 sit1    
> > fe80::a00:1/128                             ::
> > U     0      0        0 lo      
> > fe80::a00:201/128                           ::
> > U     0      0        0 lo      
> > fe80::a00:a01/128                           ::
> > U     0      0        0 lo      
> > fe80::3e04:1272/128                         ::
> > U     0      0        0 lo      
> > fe80::3e04:16d5/128                         ::
> > U     0      0        0 lo      
> > fe80::10:4b44:56cc/128                      ::
> > U     0      0        0 lo      
> > fe80::60:9795:cc55/128                      ::
> > U     0      7082       0 lo      
> > fe80::a0:2434:1d91/128                      ::
> > U     0      5        0 lo      
> > fe80::/10                                   ::
> > UA    256    0        0 eth0    
> > fe80::/10                                   ::
> > UA    256    0        0 eth1    
> > fe80::/10                                   ::
> > UA    256    0        0 eth2    
> > fe80::/10                                   ::
> > UA    256    0        0 sit1    
> > ff02::1/128                                 ff02::1
> > UAC   0      1        1 eth2    
> > ff00::/8                                    ::
> > UA    256    0        0 eth0    
> > ff00::/8                                    ::
> > UA    256    0        0 eth1    
> > ff00::/8                                    ::
> > UA    256    0        0 eth2    
> > ff00::/8                                    ::
> > UA    256    0        0 sit1 
> > 
> > 
> > Trace Woody from router:
> > 
> > traceroute6 to 3ffe:8271:2101:1::1 (3ffe:8271:2101:1::1) from
> > 3ffe:8271:1000:22::1, 30 hops max, 16 byte packets
> >  1  ip6-localhost (::1)  3004.78 ms !H  3000.65 ms !H  2999.21 ms !H
> > 
> > Trace Potato from router:
> > 
> > traceroute6 to 3ffe:8271:1000:30::1 (3ffe:8271:1000:30::1) from
> > 3ffe:8271:1000:21::1, 30 hops max, 16 byte packets
> >  1  3ffe:8271:1000:30::1 (3ffe:8271:1000:30::1)  2.279 ms  2.13 ms
> > 1.968 ms
> > 
> > With tcpdump i have get this:
> > 21:38:02.882404 3ffe:8271:1000:22::1 > ff02::1:0:1: icmp6: 
> neighbor sol:
> > who has 3ffe:8271:2101:1::1
> > 21:38:03.882226 3ffe:8271:1000:22::1 > ff02::1:0:1: icmp6: 
> neighbor sol:
> > who has 3ffe:8271:2101:1::1
> > 
> > Router: Linux 2.2.19 Debian Potato
> > Potato: Linux 2.2.19 Debian Potato
> > Woody: Linux 2.4.13 Debian Woody
> > All machines have last updates.
> > 
> > Who can help me ?
> > Any help are Welcome !!!!
> > 
> > How i can fix this problem ?
> > 
> > Thanks very very much,
> > 
> > Best Regards,
> > 
> > Nicolas
> > 
> 
>