> -----Original Message----- > From: Pekka Savola [mailto:pekkas@netcore.fi] > Sent: Sunday, November 18, 2001 11:39 AM > To: NDSoftware > Cc: linux-net@vger.kernel.org > Subject: RE: ip6-localhost (::1) 2990.86 ms !H -> Why ? > > > On Sun, 18 Nov 2001, NDSoftware wrote: > > > -----Original Message----- > > > From: Pekka Savola [mailto:pekkas@netcore.fi] > > > Sent: Sunday, November 18, 2001 11:07 AM > > > To: NDSoftware > > > Cc: linux-net@vger.kernel.org > > > Subject: RE: ip6-localhost (::1) 2990.86 ms !H -> Why ? > > > > > > > > > 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. > > > > 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 :( > > Hmm, it may be that I'm misremembering your network topology. > > In short, locally assigned addresses should have a /128 route > to loopback. Yes. > The on-link prefix (/64) should have a /64 route to Ethernet. Yes. > > Off-link prefixes should not have routes, except a default or > a 2000::/3 > route to the link-local address of the gateway. Global > address of the > gateway also works, but is deprecated and is easier to get broken. > > > > > traceroute6 fe80::2d0:70ff:fe01:811b > > connect: Invalid argument > > ping6 -I eth0 fe80::2d0:70ff:fe01:811b PING fe80::2d0:70ff:fe01:811b(fe80::2d0:70ff:fe01:811b) from ::1 eth0: 56 data bytes 64 bytes from fe80::2d0:70ff:fe01:811b: icmp_seq=1 ttl=64 time=119 usec 64 bytes from fe80::2d0:70ff:fe01:811b: icmp_seq=2 ttl=64 time=88 usec 64 bytes from fe80::2d0:70ff:fe01:811b: icmp_seq=3 ttl=64 time=84 usec --- fe80::2d0:70ff:fe01:811b ping statistics --- 3 packets transmitted, 3 received, 0% loss, time 1998ms rtt min/avg/max/mdev = 0.084/0.097/0.119/0.015 ms > > With link-local addresses, the interface must always be > specified, in some > way or another. > > When that works, try ping6'ing the global address of your > gateway. If > that doesn't work, most probably your gateway has wrong > routes pointing > towards your system (and return packets get lost). PING fe80::a0:2434:1d91(fe80::a0:2434:1d91) from fe80::2d0:70ff:fe01:811b eth0: 56 data bytes >From ::1 icmp_seq=1 Destination unreachable: Address unreachableFrom ::1 icmp_seq=2 Destination unreachable: Address unreachableFrom ::1 icmp_seq=3 Destination unreachable: Address unreachableFrom ::1 icmp_seq=4 Destination unreachable: Address unreachableFrom ::1 icmp_seq=5 Destination unreachable: Address unreachableFrom ::1 icmp_seq=6 Destination unreachable: Address unreachable --- fe80::a0:2434:1d91 ping statistics --- 8 packets transmitted, 0 received, +6 errors, 100% loss, time 7029ms fe80::a0:2434:1d91 is the link adddress of eth2 of the router. I understand why with the same configuration Potato ping router and 6bone but Woody not. > > Hope this helps. Thanks very much. > > -- > 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 > > - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
