Re: Wrong /24 Announcement at UU.net / BGP IOS Bug ?

[rpa () insnet net (Richard Almeida)]

I had a whole load of hastle with this about 2 yr ago, (one of our upstreams
is AS701 aswell), where my routers "aparently" announced a /24 at some point
which the withdraw got lost deep in UUnet.

To fix this temporarily, announce the /24 and then withdraw it (toward UUNET
in your case)

I think this was happening when I was using IOS10.3 and my config said
something like

router bgp XXXX
 network 194.x.y.0 255.255.255.0
 network 194.x.0.0 255.255.0.0 summary-only
 ...

And thus the route did get briefly announced and withdrawn by me. I also
have some recollection of an IOS bug where withdraws did get lost which
was spotted in the AS7007 problem..

Richard
 

In a previous message Winfried Haug wrote:
> Hello..
>
> one of our customers (germany.net, AS6751) is announcing us
> 151.189.0.0/16. We announce this to our both upstreams 
> ECRC (AS1273) and Ebone (1755).
>
> Since a few days a lot of german ISPs ask us, why 151.189.0.0/24
> is routed via UU.net to the USA and then goes back to germany.