Screen OS

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  • 1.  BGP AS prepend on ScreenOS

    Posted 03-27-2011 21:17
    Hi Just wondering if it is possible to do BGP AS prepending in ScreenOS v6.2.0r2.0? Thanks Ivan


  • 2.  RE: BGP AS prepend on ScreenOS
    Best Answer

    Posted 03-27-2011 22:23
    Just found an old post, anyone verified this config? thanks http://forums.juniper.net/t5/ScreenOS-Firewalls-NOT-SRX/AS-Path-Prepend/m-p/1969 Try this: set vr trust-vr set protocol bgp 11111 set as-path-access-list 1 permit "11111 11111 11111" set neighbor 1.1.1.2 remote-as 22222 set neighbor 1.1.1.2 enable set neighbor 1.1.1.2 route-map bgp out set network 10.1.1.0/24 no-check exit set access-list 10 permit ip 10.1.1.0/24 1 set route-map name bgp set route-map bgp 1 set match ip 10 set as-path 1 exit This will prepend AS numbers "11111 11111 11111" for prefix 10.1.1.0/24. Regards,


  • 3.  RE: BGP AS prepend on ScreenOS

    Posted 03-28-2011 14:45

    Did something like this in a test and it worked. Not sure about the exact syntax, but it's definitly possible to do as path prepending on a ssg.