[isp-bgp] Re: AW: Re: BGP Advertisement question..

[Iljitsch van Beijnum <iljitsch@...>]

On 12-mei-04, at 5:22, John van Oppen wrote:

> If I remember correctly, the network command always generates routes 
> with the "I" attribute.   To get an incomplete attribute one would 
> need to do a "redistribute igp" in the router bgp ASN config.   (that 
> would be a really bad idea)...
It can be ok if you know what you're doing... But if you want to change 
the origin attribute (for instance, to do some traffic engineering 
without having to do AS path prepending) you may want to use a route 
map for this:

!
router bgp 12345
 network 192.0.2.64 mask 255.255.255.192 route-map setorigin
!
route-map setorigin permit 10
 set origin incomplete
!

BTW, I don't think anyone warned the original poster yet about the 
evilness of unnecessary deaggregation. There was a whole bunch of /24s 
there that were also covered by an aggregate and thus unnecessary 
pollution to the global routing table.







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