Re: kern/52659: can't "ping6 www.kame.net" with the new -8 pullups

[Ryota Ozaki <ozaki-r%netbsd.org@localhost>]

The following reply was made to PR kern/52659; it has been noted by GNATS.

From: Ryota Ozaki <ozaki-r%netbsd.org@localhost>
To: Hisashi T Fujinaka <htodd%twofifty.com@localhost>
Cc: "gnats-bugs%NetBSD.org@localhost" <gnats-bugs%netbsd.org@localhost>, kern-bug-people%netbsd.org@localhost, 
	gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost
Subject: Re: kern/52659: can't "ping6 www.kame.net" with the new -8 pullups
Date: Fri, 27 Oct 2017 19:47:35 +0900

 On Fri, Oct 27, 2017 at 7:00 PM, Ryota Ozaki <ozaki-r%netbsd.org@localhost> wrote:
 > Hi,
 >
 > I'm investigating the issue though, I have one question now;
 > do you disable IPSEC of your kernel? If so, does enabling it help?
 
 Anyway could you send packet dumps (tcpdump -e -x ...) of both a good
 case and a bad case on dhcpcd and ping6.
 
 Thanks,
   ozaki-r
 
 >
 > Thanks,
 >   ozaki-r
 >
 > On Fri, Oct 27, 2017 at 2:25 AM, Hisashi T Fujinaka <htodd%twofifty.com@localhost> wrote:
 >> Here's what "sudo dhcpcd -dB6T --nodhcp6 wm0" gives me for working and
 >> non-working. Similar behavior on bge0 and wm0. This data is from a
 >> current-amd64 system running a netbsd-8 kernel.
 >>
 >> Working (old kernel).
 >>
 >> % sudo dhcpcd -dB6T --nodhcp6 bge0
 >> dhcpcd-7.0.0-rc3 starting
 >> DUID 00:01:00:01:1a:4b:2e:ab:00:1b:21:69:c3:70
 >> bge0: IAID da:7a:90:b0
 >> bge0: delaying IPv6 router solicitation for 0.5 seconds
 >> bge0: soliciting an IPv6 router
 >> bge0: sending Router Solicitation
 >> bge0: Router Advertisement from fe80::201:c0ff:fe09:c062
 >> bge0: executing `/libexec/dhcpcd-run-hooks' TEST
 >> interface=bge0
 >> pid=1957
 >> reason=TEST
 >> ifcarrier=up
 >> ifflags=4294936643
 >> ifmtu=1500
 >> ifwireless=0
 >> nd1_acquired=611
 >> nd1_addr1=2603:3004:a:31e3:65ed:24e2:2093:8c65/64
 >> nd1_from=fe80::201:c0ff:fe09:c062
 >> nd1_now=611
 >> 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
 >>
 >> % sudo dhcpcd -dB6T --nodhcp6 wm0
 >> dhcpcd-7.0.0-rc3 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 0.6 seconds
 >> 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=945
 >> reason=TEST
 >> ifcarrier=up
 >> ifflags=4294936643
 >> ifmtu=1500
 >> ifwireless=0
 >> nd1_acquired=628
 >> nd1_addr1=2603:3004:a:31e3:3e1e:52c1:5c11:3b60/64
 >> nd1_from=fe80::201:c0ff:fe09:c062
 >> nd1_now=628
 >> 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
 >>
 >> Not working (new
 >>
 >> % sudo dhcpcd -dB6T --nodhcp6 bge0
 >> dhcpcd-7.0.0-rc3 starting
 >> DUID 00:01:00:01:1a:4b:2e:ab:00:1b:21:69:c3:70
 >> bge0: IAID da:7a:90:b0
 >> bge0: delaying IPv6 router solicitation for 1.0 seconds
 >> bge0: soliciting an IPv6 router
 >> bge0: sending Router Solicitation
 >> bge0: sending Router Solicitation
 >> bge0: sending Router Solicitation
 >> bge0: sending Router Solicitation
 >> bge0: no IPv6 Routers available
 >> timed out
 >> dhcpcd exited
 >>
 >> % sudo dhcpcd -dB6T --nodhcp6 wm0
 >> dhcpcd-7.0.0-rc3 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 0.7 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
 >>