RE: Hiding BGP AS Numbers

From: Webb, Tremayne (TWebb@xxxxxxxxxxxxxxxxxx)
Date: Thu Mar 16 2000 - 22:28:33 GMT-3


   
   Yes, this is the only widely accepted way of doing this. Although in
   IOS terminology it is referred to as summmarizaiton. (I know, I know
   they are pretty much the same) I am not trying to start a semantics
   war :)
   
   -tw
   
   -----Original Message-----
   From: Mohan Pokkali [mailto:Mohan.Pokkali@USKO.com]
   Sent: Thursday, March 16, 2000 3:02 AM
   To: David Goldsmith; Robb
   Cc: Ccielab
   Subject: RE: Hiding BGP AS Numbers
   
   Hi Robb
   
   
   
   Depends on scenario.
   
   
   
   You can use aggregation on AS2 and then that route will be seen as
   originating from AS2.
   
   
   
   Mohan
   
   -----Original Message-----
   From: David Goldsmith [mailto:dgoldsmi@cisco.com]
   Sent: 16 March 2000 12:30
   To: Robb
   Cc: Ccielab
   Subject: Re: Hiding BGP AS Numbers
   
     Robb,
     
     If you strip off the AS path info what would you use for loop
     detection. This is what BGP uses for loopfree routing.
     
     Dave G.
     
     
     
     
     
     
     Robb wrote:
     
      Coming out of lurk mode...Say I have a BGP configuration as
     followsAS1-----------AS2-----------AS3When routes get to AS1 that
     have gone through AS2 their path will be 2 3 or 2 3 ? ? ? etcIs
     there any way I can strip off the 3 (or everything else) in the
     path to make it look like it originated in AS2?I know how to
     prepend extra AS numbers on, but not delete them.BTW, anyone going
     to San Jose 3/22 and 3/23?Thanks,Robb



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