BGP starts advertising all the routes with "as_prepend", even to AS where prepend is not configured
||Security Gateway, ClusterXL, Cluster - 3rd party, VSX
||R75, R76, R77, R77.10, R77.20, R77.30
|Platform / Model
After some uptime, BGP on Check Point Security Gateway starts advertising all the routes with "as_prepend", even to AS where prepend is not configured.
- Topology consists of 3 major AS:
[Internal AS "X"] --- [Check Point AS "Y"] --- [External AS "Z"]
- The desire is that only specific routes learned from AS "X" will be prepended by AS "Y" (using "routemap") towards AS "Z".
- Traffic capture and BGP Traces show that AS "Y" sends a BGP update towards AS "Z" with AS prepend set, which affects all routes inside the BGP update.
Manual restart of RouteD daemon (using the
tellpm command) resolves the issue only for some time.
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