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Re: RA learned prefix added to routing table is not deleted on ra route flush

From Dheeraj Kandula <dkandula@gmail.com>
Newsgroups linux.debian.maint.ipv6
Subject Re: RA learned prefix added to routing table is not deleted on ra route flush
Date 2022-06-27 22:20 +0200
Message-ID <ED3nb-7DM8-1@gated-at.bofh.it> (permalink)
References <EBTgd-6WIT-25@gated-at.bofh.it> <EC6Gt-74yG-11@gated-at.bofh.it>
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Thanks, Marc for the response.  However, the route was created because of
the prefix that was received in the RA. Hence it should be marked as "ra"
too. I feel that makes more sense. We will be able to correctly identify
all the routes that were added due to a received RA.

Dheeraj

On Sat, Jun 25, 2022 at 1:32 AM Marc Haber <mh+debian-ipv6@zugschlus.de>
wrote:

> On Fri, Jun 24, 2022 at 11:11:05AM -0400, Dheeraj Kandula wrote:
> >       When I enabled Router Advertisement on the interface on which I
> want
> > to receive RA, the received prefix was added to the routing table. The
> > default route was added with the tag "ra" but not the prefix.
>
> I can only guess, but my guess is that it doesn't marked that way
> because it strictly speaking didnt come from an RA but was generated
> because an IP address was configured on the Interface. That is most
> probably the same mechanism that is used when an IP address is manually
> configured on the interface.
>
> > When I flush the ra learned routes using the following command, only the
> > default route gets removed. Why doesn't the prefix which is *bolded*
> above
> > get deleted too?
>
> Because the route was not learned via RA. I find that correct behavior.
>
> Greetings
> Marc
>
> --
>
> -----------------------------------------------------------------------------
> Marc Haber         | "I don't trust Computers. They | Mailadresse im Header
> Leimen, Germany    |  lose things."    Winona Ryder | Fon: *49 6224 1600402
> Nordisch by Nature |  How to make an American Quilt | Fax: *49 6224 1600421
>
>

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Thread

RA learned prefix added to routing table is not deleted on ra route flush Dheeraj Kandula <dkandula@gmail.com> - 2022-06-24 17:20 +0200
  Re: RA learned prefix added to routing table is not deleted on ra  route flush Marc Haber <mh+debian-ipv6@zugschlus.de> - 2022-06-25 07:40 +0200
    Re: RA learned prefix added to routing table is not deleted on ra  route flush Dheeraj Kandula <dkandula@gmail.com> - 2022-06-27 22:20 +0200
      Re: RA learned prefix added to routing table is not deleted on ra  route flush Marc Haber <mh+debian-ipv6@zugschlus.de> - 2022-06-28 12:50 +0200

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