Re: kern/52439: ipv6 stops routing randomly

[Roy Marples <roy%marples.name@localhost>]

The following reply was made to PR kern/52439; it has been noted by GNATS.

From: Roy Marples <roy%marples.name@localhost>
To: Hisashi T Fujinaka <htodd%twofifty.com@localhost>, gnats-bugs%NetBSD.org@localhost
Cc: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost
Subject: Re: kern/52439: ipv6 stops routing randomly
Date: Tue, 3 Oct 2017 18:54:59 +0100

 On 03/10/2017 17:54, Hisashi T Fujinaka wrote:
 > Does it make sense that the command "dhcpcd -dB6T --nodhcp6 wm0" on
 > netbsd8-amd64 and current-amd64 respond differently?
 
 No it does not.
 
 However, dhcpcd-7.0.0-rc2 on a NetBSD-8.99.1 kernel produces output I 
 would expect.
 
 > 
 > netbsd8-amd64:
 > dhcpcd-7.0.0-rc1 starting
 > DUID 00:01:00:01:21:66:7c:2a:00:1b:21:69:c3:70
 > wm0: IAID 21:69:c3:70
 > wm0: delaying IPv6 router solicitation for 0.3 seconds
 > wm1: waiting for carrier
 > wm2: waiting for carrier
 > wm0: soliciting an IPv6 router
 > wm0: sending Router Solicitation
 > wm0: Router Advertisement from fe80::201:c0ff:fe09:c062
 > wm0: executing `/libexec/dhcpcd-run-hooks' TEST
 > interface=wm0
 > pid=10146
 > reason=TEST
 > ifcarrier=up
 > ifflags=4294936643
 > ifmtu=1500
 > ifwireless=0
 > nd1_acquired=12346
 > nd1_addr1=2603:3004:a:31e3:d2f:8d6c:f504:ffe9/64
 > nd1_from=fe80::201:c0ff:fe09:c062
 > nd1_now=12346
 > nd1_prefix_information1_flags=LA
 > nd1_prefix_information1_length=64
 > nd1_prefix_information1_pltime=604800
 > nd1_prefix_information1_prefix=2603:3004:a:31e3::
 > nd1_prefix_information1_vltime=2592000
 > nd1_source_address=0001c009c062
 > dhcpcd exited
 > 
 > current-amd64:
 > dhcpcd-7.0.0-rc2 starting
 > DUID 00:01:00:01:1a:4b:2e:ab:00:1b:21:69:c3:70
 > wm0: IAID 9f:8f:10:aa
 > wm0: delaying IPv6 router solicitation for 0.2 seconds
 > wm0: soliciting an IPv6 router
 > wm0: sending Router Solicitation
 > wm0: sending Router Solicitation
 > wm0: sending Router Solicitation
 > wm0: sending Router Solicitation
 > wm0: no IPv6 Routers available
 > timed out
 > dhcpcd exited
 
 Are you sure it's not a kernel issue? The failing output just shows that 
 dhcpcd sent an RA but didn't receive one.
 
 Roy