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Re: IPv6 problems.... (dhcpcd weirdness, rshd fails, etc.)



At Tue, 18 Nov 2025 13:09:54 +0000, Roy Marples <roy%marples.name@localhost> wrote:
Subject: Re: IPv6 problems.... (dhcpcd weirdness, rshd fails, etc.)
> 
> So this is a misconfiguration on the router and a bug I've just fixed in dhcpcd.
> Basically you have a RA saying "DHCPv6 exists, start INFORMATION REQUEST".
> However, no DHCPv6 reply comes back to our request.
> We do obey the RFC timings, with a caveat - we mirror CONFIRM MAX_MD so we can use the last "lease" we got.
> The bug here is that we reset them timings when doing this and will be fixed in the next version.
> 
> So as far as you are concered this is just noise in the logs.

Thanks Roy!

I kind of assumed from the changelog that the next release would quiet
the logging somewhat.

I wonder is this kind of "misconfiguration" common with (older?)
Linux-based firewalls?  (This one is ostensibly OpenWRT under the covers
-- they used to allow telnet to a command line, but removed it some
revisions ago.)  I really need to replace it I guess.

From my understanding now of the options given in the router UI it
shouldn't be saying "DHCPv6 exists" when it is in the default
"auto configure" mode, but I guess for some reason it does.

-- 
					Greg A. Woods <gwoods%acm.org@localhost>

Kelowna, BC     +1 250 762-7675           RoboHack <woods%robohack.ca@localhost>
Planix, Inc. <woods%planix.com@localhost>     Avoncote Farms <woods%avoncote.ca@localhost>

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