[AusNOG] Vyatta - Accepting /24 from Customer and advertising to upstream

[Joseph Goldman]

Hi Nick,

  I'm not a Vyatta user but have done a bit of reading in an attempt to 
help Daniel.

  I couldn't find reference to Vyatta redistributing BGP (no 
redistribute syntax for bgp), so unless its implied 100% of the time, it 
reads as if it doesnt redistribute BGP into BGP (or always does). Every 
other routing OS i have used you've had to explicitly state it. I'd be 
interested to know the true story with Vyatta. In any case I advised 
Daniel to add the network statement in an attempt to check the 
advertised-routes to his upstream, to see if his router is even trying 
to send the prefix up (which it wasn't).

Thanks,
Joe

On 27/07/14 08:24, Nick Pratley wrote:
> Couple things wrong
>
> Remove network statement for that range as it's being advertised to 
> you,  you are not originating it.
>
> Remove export prefix list on that peer
>
> Create prefix list import-downstream with that prefix as the allowed 
> route and apply to the neighbor prefix-list import
>
> Soft reset bgp on the neighbor and that should do it.
>
> Sent from my iPhone
>
> On 27 Jul 2014, at 6:54 am, Damien Gardner Jnr <rendrag at rendrag.net 
> <mailto:rendrag at rendrag.net>> wrote:
>
> I'm sure someone who knows 100% will reply when they all wake up by 
> two things to try..
>
> 1) on neighbor 103.18.204.242, there's no prefix-list import. I'm not 
> sure whether this will just accept *everything* (this is bad mmmkay), 
> or whether it will accept nothing at all.. Would be best to add a 
> prefix list to accept the /24 from the customer.
>
> Though you can check this by doing:
> show ip bgp neighbors 103.18.204.242 received-routes
>
> (Note misspelling of neighbours, this throws me every time!)
>
> And see if you're receiving the route
>
> I'd also check if you're sending the route on to your upstream.
>
> aka
>
> show ip bgp neighbors 1.0.4.73 advertised-routes
>
> 2) Have you told your upstream about the new prefix (and supplied them 
> with your customer's LoA), and have they confirmed that they and all 
> their upstreams are accepting it via you? If not, they're not going to 
> accept it from you (unless they're a bit dodgy..).
>
> Two things to check on anyway :)
>
> Regards,
> Damien
>
>
>
> On 26 July 2014 22:37, Daniel Watson <Daniel at glovine.com.au 
> <mailto:Daniel at glovine.com.au>> wrote:
>
>     Hi Guys
>
>     We are accepting 203.27.101.0/24 <http://203.27.101.0/24> via
>     AS133196 to our router
>
>     We are trying to advertise this router that we are getting on our
>     BGP session to 133196 over to our upstream provider at 1.0.4.73 &
>     1.0.4.74
>
>     However our upstream provider are not getting those routes from us
>
>     I have uploaded a sample of our configuration to
>     http://glovine.com.au/daniel/melbourne.txt
>     <http://glovine.com.au/daniel/melbourne.txt>
>
>     Can anybody point out the issue with 203.27.101.0/24
>     <http://203.27.101.0/24> sending upstream?   First time newbie
>     doing this part :D
>
>     Regards,
>
>     Daniel Watson
>
>     Network Administrator / Network Operations Manager
>
>     E Daniel at GloVine.com.au <mailto:Daniel at GloVine.com.au>
>
>     W www.GloVine.com.au <http://www.GloVine.com.au>
>
>
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>
>
> -- 
>
> Damien Gardner Jnr
> VK2TDG. Dip EE. GradIEAust
> rendrag at rendrag.net <mailto:rendrag at rendrag.net> - 
> http://www.rendrag.net/_
> _--
> We rode on the winds of the rising storm,
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> We danced among the lightning bolts,
>  and tore the world asunder
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