Screen OS

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  • 1.  Route filtering in SSG

    Posted 02-04-2013 12:24

    Hi,

     

    What is a equivalent for cisco as-path regexp "^[0-9]+_[0-9]+$" in SSG?

    Or accept the direct AS route and it's direct downstream eg. AS path lenght with is 2.

     

    Thanks in advance.



  • 2.  RE: Route filtering in SSG

    Posted 02-05-2013 01:24

    Hi,

     

    set as-path-access-list is documented in the CLI Guide as a part of BGP context (p. 133 for ScreenOS 6.3)



  • 3.  RE: Route filtering in SSG

    Posted 02-05-2013 10:52

    Hi,

     

    I know, but I have problems to implement it.

     

    I've tried with "^[0-9].+( [0-9].+)$" and "^[1-65535].+( [1-65535].+)$" without success.

     

    Any help will be appreciated.

     

    Regards,

     



  • 4.  RE: Route filtering in SSG
    Best Answer

    Posted 02-21-2013 12:09

    Hi,

     

    Just for others, where 23456 is a EBGP peer, and we want it's routes and it's directs links.

     

    set as-path-access-list 3 permit "^23456 [1-65535]$"
    set as-path-access-list 3 permit "^23456$"

     

    Working, done with JTAC.