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AS-PATH regex help

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Hi there,

 

Im looking to add a regular experssion to my aspath that will only give me routes that originate at a particular as number.  I have tried:

 

as-path term "^6939$"

as-path term "^6939{1,1}$"

 

I know that the "^" and the "$" are implied and not needed but I still can not get this to work.  We are still getting routes beyond just the 6939 as for example:

 

show route 69.58.80.59

69.58.64.0/19 *[BGP/170] 4d 18:08:28, MED 0, localpref 450
AS path: 6939 21637 I, validation-state: unverified
> to 206.81.82.40 via irb.45

 

because there is two as hops, I want to filter this route from this peer.  Can anyone please advise?

 


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