Date: Sun, 13 Nov 2016 01:24:09 -0500 From: Zaphod Beeblebrox <zbeeble@gmail.com> To: FreeBSD Net <freebsd-net@freebsd.org> Subject: Re: quagga misinterpreting route. Message-ID: <CACpH0MdnP1oJK3sD=hw8VQhVKXKnZDMfh8wEZQ2jEagNzYybNQ@mail.gmail.com> In-Reply-To: <CACpH0MemfJqFVZxc4Rg_qbzcqgM5fRjojxKeoD4wTAY9KBOu6g@mail.gmail.com> References: <CACpH0MemfJqFVZxc4Rg_qbzcqgM5fRjojxKeoD4wTAY9KBOu6g@mail.gmail.com>
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After upgrading to 10.3p12 and messing about a bit, I found something else strange. On another mpd router, the ipv6 route was showing up as being on an unused port (bce1, in this case). I have the port connected to the switch (so it's up) but I'm not using it. So... I ifconfig'd down bce0. Then, quagga claims: my.other.router.ca# sh ipv6 route 1001:abcd:1::1 Routing entry for 1001:abcd:1::/64 Known via "kernel", distance 0, metric 0, tag 0, vrf 0, best, fib >* fe80::212:3fff:fe41:72fd, via lo0 ... which is somewhat ridiculous. On Sun, Nov 13, 2016 at 12:51 AM, Zaphod Beeblebrox <zbeeble@gmail.com> wrote: > I have an if-up mpd5 rule that says: > > route -n6 add $route -iface $interface > > where $route is something like 1001:abcd:1::/64 and $interface is > something like ng2. > > When I go into quagga, I see: > > my.router.ca# sh ipv6 route 1001:abcd:1::1 > Routing entry for 1001:abcd:1::/64 > Known via "kernel", distance 0, metric 0, tag 0, vrf 0, best, fib > >* fe80::212:3fff:fe41:72fd, via bge0 > > ... now there's two things wrong with this. It's not a kernel route and > it's not via bge0. This leads the ospf6 advertisement of this route to be: > > my.router.ca# sh ipv6 ospf6 route 1001:abcd:1::1 > Destination: ::/0 > Destination type: Network > Installed Time: 00:13:29 ago > Changed Time: 00:13:29 ago > Lock: 2 Flags: BA-- > Memory: prev: 0x0 this: 0x7026f0 next: 0x704dd0 > Associated Area: 0.0.0.0 > Path Type: External-1 > LS Origin: AS-External Id: 0.0.0.0 Adv: 1.2.3.4 > Options: --|-|-|--|-|-- > Router Bits: -------- > Prefix Options: xxx > Metric Type: 1 > Metric: 20 (0) > Nexthop: > fe80::21a:64ff:fe79:3348 bge0.401 > > ... which leads other ospf6 routers on the network to not see the route at > all (invalid?) > >
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