nanog mailing list archives
Re: IPv6 Pain Experiment
From: bzs () theworld com
Date: Mon, 7 Oct 2019 13:20:44 -0400
I didn't quite say nothing would need to be changed, only that the changes would be by and large very minimal, some new cases in the existing IPv4 stacks, rather than an entirely new stack. Particularly for hosts, if this bit (flag, whatever) is set be sure to copy the entire IP packet into your dest headers. The extended addressing I describe could probably be mostly implemented in hosts as a new ICMP option for extended addressing. On October 6, 2019 at 17:58 valdis.kletnieks () vt edu (Valdis Klētnieks) wrote:
On Sun, 06 Oct 2019 17:47:24 -0400, bzs () theworld com said:All a strictly IPv4 only host/router would need to understand in that case is the IHL, which it does already, and how to interpret whatever flag/option is used to indicate the presence of additional address bits mostly to ignore it or perhaps just enough to know to drop it if it's not implemented.So... how would a strict IPv4 router handle the case where 8.8.4.5.13.9/40 should be routed to Cogent, but 8.8.4.5.17.168/40 should be routed via Hurricane Electric, and no you can't just route to wherever 8.8.4.5 goes because there's yet another peering war and nobody's baked a cake yet, so sending packets for either route to the wrong link will cause blackholing? x[DELETED ATTACHMENT <no suggested filename>, application/pgp-signature]
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Current thread:
- Re: IPv6 Pain Experiment, (continued)
- Re: IPv6 Pain Experiment J. Hellenthal via NANOG (Oct 06)
- Re: IPv6 Pain Experiment bzs (Oct 06)
- Re: IPv6 Pain Experiment Valdis Klētnieks (Oct 06)
- Re: IPv6 Pain Experiment Forrest Christian (List Account) (Oct 06)
- Re: IPv6 Pain Experiment Masataka Ohta (Oct 06)
- Re: IPv6 Pain Experiment Rob McEwen (Oct 07)
- Re: IPv6 Pain Experiment Valdis Klētnieks (Oct 07)
- Re: IPv6 Pain Experiment Stephen Satchell (Oct 07)
- Re: IPv6 Pain Experiment Rob McEwen (Oct 07)
- Re: IPv6 Pain Experiment bzs (Oct 07)
- Re: IPv6 Pain Experiment bzs (Oct 07)
- Re: IPv6 Pain Experiment Denis Fondras (Oct 07)
- Re: IPv6 Pain Experiment Owen DeLong (Oct 07)
- Re: IPv6 Pain Experiment Karl Auer (Oct 07)
- RE: IPv6 Pain Experiment Michel Py (Oct 07)
- Re: IPv6 Pain Experiment Owen DeLong (Oct 07)
- RE: IPv6 Pain Experiment Michel Py (Oct 08)
- Re: IPv6 Pain Experiment Owen DeLong (Oct 08)
- RE: IPv6 Pain Experiment bzs (Oct 08)
- Re: IPv6 Pain Experiment Mark Andrews (Oct 02)
- Re: IPv6 Pain Experiment Masataka Ohta (Oct 02)