AFAIK, once you are receiving a mixture of public and private AS numbers within the AS-PATH, the only way to remove the private one(s) is to remove the AS-PATH completely by redistributing to an IGP and manipulate the AS-PATH when redistributing back from IGP to BGP.
Which is quite complicated and requires multiple routers (or VRFs) involved.
The command to perform AS_PATH striping is "neighbor remove-private-as". All BGP updates sent over this sesssion are inspected to have a sequence of private AS numbers in the beginning of the AS_PATH. All private numbers are removed and the local AS number is prepended.
By the way are you using the private AS number? you ISP should remove that when they advertise your prefixes!!
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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