Kenyon Ralph <kenyon@kenyonralph.com> writes: > On 2011-06-01T18:07:26-0300, Henrique de Moraes Holschuh <hmh@debian.org> wrote: > >> 8 hops to get to shein, and *59* hops to get back?! >> >> That path is hopelessly broken. In fact, this is so weird I'd guess >> something is screwing up the TTL fields in the way. > > That's usual. Most of the "back" numbers reported by tracepath and > tracepath6 are in the vicinity of 59, yet this causes no breakage > elsewhere. I even have a "back 59" to shub-niggurath.unzane.com from > another he.net IPv6 tunnel: > Interesting, I tried tracepath6 to various hosts and I get 'back 51' or higher as well. Except what does the "!A" mean in this case?: % tracepath6 a.root-servers.net 1?: [LOCALHOST] 0.027ms pmtu 1480 1: shub-niggurath.unzane.com 2.707ms 1: shub-niggurath.unzane.com 0.179ms 2: gturner-1.tunnel.tserv14.sea1.ipv6.he.net 6.615ms 3: gige-g2-6.core1.sea1.he.net 5.578ms 4: 10gigabitethernet9-1.core1.sjc2.he.net 32.304ms 5: 10gigabitethernet3-2.core1.pao1.he.net 34.998ms 6: verisign.com 28.741ms !A Resume: pmtu 1480 -- Gerald Turner Email: gturner@unzane.com JID: gturner@unzane.com GPG: 0xFA8CD6D5 21D9 B2E8 7FE7 F19E 5F7D 4D0C 3FA0 810F FA8C D6D5
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