Date: Thu, 13 Sep 2012 09:21:32 +0900 (JST) From: Hiroki Sato <hrs@FreeBSD.org> To: yanegomi@gmail.com Cc: freebsd-net@FreeBSD.org Subject: Re: Restarting interfaces and routing table stickiness Message-ID: <20120913.092132.1572055980229833778.hrs@allbsd.org> In-Reply-To: <CAGH67wSemVK2FtGHgHX2tMicHd7fEs27M6_RCxdKiJxFPveRCQ@mail.gmail.com> References: <CAGH67wSemVK2FtGHgHX2tMicHd7fEs27M6_RCxdKiJxFPveRCQ@mail.gmail.com>
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----Security_Multipart(Thu_Sep_13_09_21_32_2012_633)-- Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Garrett Cooper <yanegomi@gmail.com> wrote in <CAGH67wSemVK2FtGHgHX2tMicHd7fEs27M6_RCxdKiJxFPveRCQ@mail.gmail.com>: ya> Hi -net! ya> I've been doing some IPv6 testing lately, and one of the issues ya> that I've run into in the past (since at least 7.0-CURRENT) is that if ya> I do `service netif restart <foo>`, e.g. `service netif restart` ya> multiple times, and have addresses statically configured in rc.conf, ya> more often than not the routing table doesn't properly get flushed and ya> my addresses become unreachable (even after I call `service routing ya> restart`). Recently, I ran into an issue with 9.1-RC1 where had to ya> kill ntpd before it would allow me to reach one of the addresses I had ya> assigned on a test server (server has a total of 4 physical NICs and 1 ya> vlan'ed interface). The only surefire method to get things back to a ya> sane state is to reboot the box (of course, please keep in mind that ya> I'm using the netif rc script and not using other commands like route ya> flush, route delete, etc). ya> This behavior can be simply triggered like so on 8.x and below like so: ya> ya> /etc/rc.d/network_ipv6 restart ya> /etc/rc.d/network_ipv6 restart Do you have a procedure which can reproduce the problem on 9.x and/or output with rc_debug="YES"? I guess the cause was that initialization of the routing table and interface configuration are separated, and it ended up being some incomplete configuration when restarting. -- Hiroki ----Security_Multipart(Thu_Sep_13_09_21_32_2012_633)-- Content-Type: application/pgp-signature Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (FreeBSD) iEYEABECAAYFAlBRJwwACgkQTyzT2CeTzy0CTgCg2sndjXOqtGE+sgqEyt8DVTk2 GsYAoMLQh4kcFx52IgFHw1b+IaYwqhFu =qG1m -----END PGP SIGNATURE----- ----Security_Multipart(Thu_Sep_13_09_21_32_2012_633)----
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