[j-nsp] Port list?

Eric Van Tol eric at atlantech.net
Wed Oct 6 14:12:49 EDT 2004


This could be accomplished by using groups, correct?

groups {
    tcp-port-list {
        firewall {
           filter <*> {
                term <*> {
                          from protocol tcp;
                          destination-port [ 21 25 445 666 ];
	       }
          }
    }
}
firewall {
     filter block-traffic {
           term block-tcp {
                apply-groups tcp-port-list;
           }
           then discard;
           }
      }
}

-evt

-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net
[mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Eli Dart
Sent: Wednesday, October 06, 2004 1:37 PM
To: juniper-nsp at puck.nether.net
Subject: [j-nsp] Port list?

Does anyone know of a way to define a list of ports in Juniper policy?

For a border router, it would be nice to do something like the 
following:

firewall {
 filter inbound {
  term block-bad-tcp-ports {
   from {
    protocol tcp;
    destination-port-list BAD-TCP;
   }
   then discard;
  }
 }
}

This allows the maintenance of a list of ports without touching the 
firewall filter.  It also avoids the problem of keeping multiple 
instances of a port list in sync.

Juniper folks, are there any plans to implement such a thing?

		--eli






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