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List: quagga-dev
Subject: [quagga-dev 11535] Re: bgp as-path prepend last-as
From: John Fraizer <john () op-sec ! us>
Date: 2014-09-29 16:25:16
Message-ID: CALxrgMG5g-7Zyd0dA15zvtxeMxc7CLBv_Z9jM-dpwYcjZKdbQw () mail ! gmail ! com
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Folks, if you're not doing both ingress and egress filtering, your should
be. RADB (and similar) are your friends. Make use of them.
--
John Fraizer
=CE=A5=CE=A3=CE=9C=CE=A7
On Mon, Sep 29, 2014 at 11:56 AM, Boian Bonev <bbonev@ipacct.com> wrote:
> Hi Timo,
>
> I have something very similar hanging around - its performing different
> task but its based only on aspath contents without parameters.
>
> I haven't proposed that for merging because its dangerous stuff - without
> caution one can produce a better path than the world's best one; if that
> gets re-advertised it can lead to routing advertisement loop...
>
> I think it can save you some time if you base your changes on it...
>
> With best regards,
> b.
>
>
>
> On Mon, Sep 29, 2014 at 5:50 PM, Timo Teras <timo.teras@iki.fi> wrote:
>
>> Hi,
>>
>> It seems quagga does not support 'set as-path prepend last-as <num>' in
>> route-map's:
>>
>> http://www.cisco.com/web/techdoc/dc/reference/cli/nxos/commands/bgp/set_=
as-path.html
>>
>> Is there any patch for this? (I would like to use it on backup
>> router doing iBGP to make longer AS-path in ASN agnostic way; can't use
>> the own AS number since it's iBGP.)
>>
>> It looks not too hard to implement it. I'll give it a try tomorrow or
>> day after if there's no patch.
>>
>> Thanks,
>> Timo
>>
>> _______________________________________________
>> Quagga-dev mailing list
>> Quagga-dev@lists.quagga.net
>> https://lists.quagga.net/mailman/listinfo/quagga-dev
>>
>
>
> _______________________________________________
> Quagga-dev mailing list
> Quagga-dev@lists.quagga.net
> https://lists.quagga.net/mailman/listinfo/quagga-dev
>
>
[Attachment #5 (text/html)]
<div dir="ltr">Folks, if you're not doing both ingress and egress filtering, your \
should be. RADB (and similar) are your friends. Make use of them.</div><div \
class="gmail_extra"><br clear="all"><div><div>--</div>John Fraizer<div><span \
style="color:rgb(53,53,53);font-family:Arial,sans-serif;font-size:12px;line-height:12px;background-color:rgb(244,244,244)">ΥΣΜΧ</span></div><div><span \
style="color:rgb(53,53,53);font-family:Arial,sans-serif;font-size:12px;line-height:12px;background-color:rgb(244,244,244)"><br></span></div><div><span \
style="color:rgb(53,53,53);font-family:Arial,sans-serif;font-size:12px;line-height:12px;background-color:rgb(244,244,244)"><br></span></div></div>
<br><div class="gmail_quote">On Mon, Sep 29, 2014 at 11:56 AM, Boian Bonev <span \
dir="ltr"><<a href="mailto:bbonev@ipacct.com" \
target="_blank">bbonev@ipacct.com</a>></span> wrote:<br><blockquote \
class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc \
solid;padding-left:1ex"><div dir="ltr">Hi Timo,<div><br></div><div>I have something \
very similar hanging around - its performing different task but its based only on \
aspath contents without parameters.</div><div><br></div><div>I haven't proposed \
that for merging because its dangerous stuff - without caution one can produce a \
better path than the world's best one; if that gets re-advertised it can lead to \
routing advertisement loop...</div><div><br></div><div>I think it can save you some \
time if you base your changes on it...</div><div><br></div><div>With best \
regards,</div><div>b.</div><div><br></div><div><br></div></div><div \
class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div \
class="gmail_quote">On Mon, Sep 29, 2014 at 5:50 PM, Timo Teras <span \
dir="ltr"><<a href="mailto:timo.teras@iki.fi" \
target="_blank">timo.teras@iki.fi</a>></span> wrote:<br><blockquote \
class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc \
solid;padding-left:1ex">Hi,<br> <br>
It seems quagga does not support 'set as-path prepend last-as <num>' \
in<br> route-map's:<br>
<a href="http://www.cisco.com/web/techdoc/dc/reference/cli/nxos/commands/bgp/set_as-path.html" \
target="_blank">http://www.cisco.com/web/techdoc/dc/reference/cli/nxos/commands/bgp/set_as-path.html</a><br>
<br>
Is there any patch for this? (I would like to use it on backup<br>
router doing iBGP to make longer AS-path in ASN agnostic way; can't use<br>
the own AS number since it's iBGP.)<br>
<br>
It looks not too hard to implement it. I'll give it a try tomorrow or<br>
day after if there's no patch.<br>
<br>
Thanks,<br>
Timo<br>
<br>
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</blockquote></div><br></div> \
</div></div><br>_______________________________________________<br> Quagga-dev \
mailing list<br> <a href="mailto:Quagga-dev@lists.quagga.net">Quagga-dev@lists.quagga.net</a><br>
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target="_blank">https://lists.quagga.net/mailman/listinfo/quagga-dev</a><br> \
<br></blockquote></div><br></div>
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