netdev.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: David Ahern <dsahern@gmail.com>
To: Alexis Bauvin <abauvin@online.net>, Gowen <gowen@potatocomputing.co.uk>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: Re: VRF Issue Since kernel 5
Date: Tue, 10 Sep 2019 17:36:04 +0100	[thread overview]
Message-ID: <db3f6cd0-aa28-0883-715c-3e1eaeb7fd1e@gmail.com> (raw)
In-Reply-To: <7CAF2F23-5D88-4BE7-B703-06B71D1EDD11@online.net>

On 9/9/19 1:01 PM, Alexis Bauvin wrote:
> Could you try swapping the local and l3mdev rules?
> 
> `ip rule del pref 0; ip rule add from all lookup local pref 1001`

yes, the rules should be re-ordered so that local rule is after l3mdev
rule (VRF is implemented as policy routing). In general, I would reverse
the order of those commands to ensure no breakage.

Also, 5.0 I think it was (too many kernel versions) added a new l3mdev
sysctl (raw_l3mdev_accept). Check all 3 of them and nmake sure they are
set properly for your use case.

These slides do not cover 5.0 changes but are still the best collection
of notes on VRF:
http://schd.ws/hosted_files/ossna2017/fe/vrf-tutorial-oss.pdf

  parent reply	other threads:[~2019-09-10 16:36 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-09  7:46 VRF Issue Since kernel 5 Gowen
2019-09-09  9:28 ` Alexis Bauvin
     [not found]   ` <CWLP265MB1554B902B7F3B43E6E75FD0DFDB70@CWLP265MB1554.GBRP265.PROD.OUTLOOK.COM>
2019-09-09 12:01     ` Alexis Bauvin
2019-09-09 19:43       ` Gowen
2019-09-10 14:22         ` Gowen
2019-09-10 16:36       ` David Ahern [this message]
2019-09-11  5:09         ` Gowen
2019-09-11 11:19           ` Gowen
2019-09-11 11:49             ` Gowen
2019-09-11 12:15               ` Mike Manning
     [not found]                 ` <CWLP265MB155485682829AD9B66AB66FCFDB10@CWLP265MB1554.GBRP265.PROD.OUTLOOK.COM>
     [not found]                   ` <CWLP265MB155424EF95E39E98C4502F86FDB10@CWLP265MB1554.GBRP265.PROD.OUTLOOK.COM>
2019-09-11 16:09                     ` David Ahern
2019-09-12  6:54                       ` Gowen
2020-03-10 20:47                 ` Maximilian Bosch
2020-03-12  1:06                   ` David Ahern
2020-04-01 18:16                     ` Maximilian Bosch
2020-04-01 19:18                       ` David Ahern
2020-04-01 20:35                         ` Maximilian Bosch
2020-04-01 20:41                           ` David Ahern
2020-04-02 23:02                             ` Maximilian Bosch
2020-04-05 16:52                               ` David Ahern
2020-04-08 10:07                                 ` Mike Manning
2020-04-08 15:36                                   ` David Ahern
2020-04-19 20:35                                   ` Maximilian Bosch
2019-09-11 16:53   ` David Ahern
2019-09-10 16:39 ` David Ahern
2019-09-11 17:02 ` David Ahern
2019-09-12  6:50   ` Gowen
2019-09-13 17:41     ` David Ahern

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

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

  git send-email \
    --in-reply-to=db3f6cd0-aa28-0883-715c-3e1eaeb7fd1e@gmail.com \
    --to=dsahern@gmail.com \
    --cc=abauvin@online.net \
    --cc=gowen@potatocomputing.co.uk \
    --cc=netdev@vger.kernel.org \
    /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;
as well as URLs for NNTP newsgroup(s).