bird version 2.0.4 - peering with cisco version ios xe 16.3.5 - invalid open message

[Marco van Tol]

Op 11 mrt. 2019, om 02:55 heeft Ondrej Zajicek <santiago at crfreenet.org> het volgende geschreven:
> On Fri, Mar 08, 2019 at 04:09:58PM +0100, Marco van Tol wrote:
>> Op 8 mrt. 2019, om 14:45 heeft Ondrej Zajicek <santiago at crfreenet.org> het volgende geschreven:
>>> On Fri, Mar 08, 2019 at 01:51:31PM +0100, Marco van Tol wrote:
>>>> Hi,
>>>> 
>>>> So I replaced bird 2.0.4 for which I downloaded the rpm from your site with bird 2.0.2 which I installed using yum on a centos 7 system.
>>>> 
>>>> I noticed 2 things:
>>>> - The Centos 7 2.0.2 rpm makes the bird daemon drop privileges and resumes as user bird
>>>> - The 2.0.4 package from your site, when started with the supplied .service file, remains as root, with the exact same bird.conf
>>> 
>>> Hi
>>> 
>>> That is defined by cmdline options, so they are probably missing in the .service file.
>> 
>> Ah right, okay thanks.
>> 
>>>> - Version 2.0.2 has no issues to peer with the cisco router, it peers fine.
>>>> 
>>>> So now I'm curious how worried I should be about the "import bgp fixes" in the 2.0.4 release notes. :-)
>>> 
>>> That is unlikely as that does not change OPEN message.
>>> 
>>> Could you try 2.0.4 with 'long lived graceful restart off;' option?
>> 
>> Hi,
>> 
>> This fixed it.  I added this option only to the cisco neighbors which made them accept peering.
>> 
>> Much appreciated, and let me know when you need more information from me.
> 
> Hi

Hi

> What version of Cisco is that?

What I wrote in the subject and the first message, ios xe 16.3.5 :-)
If you need more info in this area let me know.  I have close to no experience with Cisco, but I have someone around who does.

> Could you try if you get the same result with 1.6.6?

The sessions come up with version 1.6.4.  Is that good enough or do you need me to try with 1.6.6?

> Could you save the failed session initiation attempt by tcpdump?
> (e.g. tcpdump -s 0 -w file.pcap ...)

I can but I would like to exchange the file personally rather than on this list.
Do you have a proposal on how to exchange the file?

Thanks!

Marco van Tol

P.S. About my other message about the "protocol rpki" on centos 7, the exact same config file works fine on a "BIRD on FreeBSD" system, so I assume that means I have the syntax okay :-)

-- 
Marco van Tol