Development issues regarding the cerowrt test router project
 help / color / mirror / Atom feed
From: Dave Taht <dave.taht@gmail.com>
To: "cerowrt-devel@lists.bufferbloat.net"
	<cerowrt-devel@lists.bufferbloat.net>,
	 "babel-users@lists.alioth.debian.org"
	<babel-users@lists.alioth.debian.org>
Subject: [Cerowrt-devel] ipv6 confusion with source specific gateways.
Date: Tue, 25 Nov 2014 23:11:17 -0800	[thread overview]
Message-ID: <CAA93jw68EUNHyJRrKYZuc0egXZaC_9oUysqZEN-YkNfNhc6ERA@mail.gmail.com> (raw)

Some days I just lose it with prefix math. Or maybe we have a bug.

So here is a default gateway. So far as I know it is getting a /56
actually, not a /60, but it is requesting a /60 and thus distributing
a source specific route to that /60.

default from :: via fe80::201:5cff:ee62:b646 dev ge00  proto static  metric 1024
# should I even have a default route at all?
default from 2001:558:6045:e9:44a9:4a25:ece9:55c3 via
fe80::201:5cff:ee62:b646 dev ge00  proto static  metric 1024
# my uplink, looks sane

default from 2601:c:ce00:9d0::/60 via fe80::201:5cff:ee62:b646 dev
ge00  proto static  metric 1024
# and see that /60...

# and then there is the default ipv6 address assignements on cero.

2601:c:ce00:9d1::/64 dev gw10  proto kernel  metric 256  expires 326362sec

Now, where my brain crashes: shouldn't 2601:c:ce00:9d1::/64 actually
be something like

2601:c:ce00:9d01::/64 not, 2601:c:ce00:9d1::/64?

(see the 01?)?

OK, so, like, I have another babel source specifc gateway a few hops
in from there, I add

ip -6 addr add 2601:c:ce00:9d01::1/64 dev wlan0-1

that doesnt work. I make it be

ip -6 addr add 2601:c:ce00:9d6::1/64 dev wlan0-1

and that does.


-- 
Dave Täht

http://www.bufferbloat.net/projects/bloat/wiki/Upcoming_Talks

             reply	other threads:[~2014-11-26  7:11 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-26  7:11 Dave Taht [this message]
2014-11-26  7:40 ` Toke Høiland-Jørgensen
2014-11-26 22:03   ` Robert Bradley
2014-12-02  2:15   ` [Cerowrt-devel] [Babel-users] " Juliusz Chroboczek
2014-12-02  2:38     ` Dave Taht
2014-12-02  5:53     ` Toke Høiland-Jørgensen
2014-11-27  3:21 ` [Cerowrt-devel] " Chuck Anderson
2014-11-27  8:32   ` Dave Taht

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://lists.bufferbloat.net/postorius/lists/cerowrt-devel.lists.bufferbloat.net/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAA93jw68EUNHyJRrKYZuc0egXZaC_9oUysqZEN-YkNfNhc6ERA@mail.gmail.com \
    --to=dave.taht@gmail.com \
    --cc=babel-users@lists.alioth.debian.org \
    --cc=cerowrt-devel@lists.bufferbloat.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox