[AusNOG] Multiple protocols > bgp AS Numbers on Vyatta

[Tony]

As with all things BGP, both ends need to agree upon it. You can't set your 'local-as' to be the same as the remote peer without them doing the same (ie. setting the AS for your end to be that number). You should also realise that if both ends have the same AS configured (whether natively or via loca/remote-as) then you effectively have an i-BGP connection not an e-BGP and some different rules apply.

Either way as stated you only have one BGP process (with one AS) and you can use local-as to be a member of the second AS locally.


regards,
Tony.


________________________________
 From: Nathan Brookfield <Nathan.Brookfield at simtronic.com.au>
To: Scott O'Brien <scott at scottyob.com> 
Cc: "ausnog at lists.ausnog.net" <ausnog at lists.ausnog.net> 
Sent: Tuesday, 1 July 2014 11:26 AM
Subject: Re: [AusNOG] Multiple protocols > bgp AS Numbers on Vyatta
 


The problem is I can't believe you can use this and have the same ASN as the other peer? I could be wrong.


Kindest Regards,
Nathan Brookfield 


Chief Executive Officer
Simtronic Technologies Pty Ltd

Web: http://simtronic.com.au
Phone: 1300 592 330
Fax: (02) 4749 4950



On 1 Jul 2014, at 11:22, "Scott O'Brien" <scott at scottyob.com> wrote:


I've never had to use it yet, but could the Local-AS feature be what he's after?  http://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/13761-39.html 



On 1 Jul 2014, at 11:20 am, Nathan Brookfield <Nathan.Brookfield at simtronic.com.au> wrote:

Daniel,
>
>
>On Vyatta, VyOS, Cisco and most other platforms you can only use one ASN.  You would need to bring up a session between the two peers with standard eBGP.
>
>
>Kindest Regards,
Nathan Brookfield 
>
>
>Chief Executive Officer
>Simtronic Technologies Pty Ltd
>
>
>Web: http://simtronic.com.au
>Phone: 1300 592 330
>Fax: (02) 4749 4950
>
>On 1 Jul 2014, at 11:19, "Daniel Watson" <Daniel at glovine.com.au> wrote:
>
>
>Hi Guys
> 
>We have one of our routers setup with  AS132839, but needing to add another one for internal BGP to another network
> 
>I was wondering if anybody knows how to achieve this other then setting up another router just for this project?
> 
>I believe on cisco its vrf’s
> 
> 
>Regards,
>Daniel Watson
>Network Administrator / Network Operations Manager
> 
>E Daniel at GloVine.com.au
>W www.GloVine.com.au
> 
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