BGP on Juniper (JunOS)

http://www.juniper.net/techpubs/software/nog/nog-mpls/html/config-mpls12.html http://www.space.net/~gert/RIPE/ipv6-filters.html

See also:

• JunOS Secure BGP Template v1.92
• Cisco Secure BGP Template
• JunOS Secure Template
• Minimizing the Effects of DoS Attacks

What do we advertice to our neighbor

 show route advertising-protocol bgp <IP>

What do we get from our neighbor

show route receive-protocol bgp <IP>

policy-statement foobar-export {
   term foobar {
     from {
        route-filter x.x.x.0/24 exact accept;
     }
   }
  term rest {
     then reject;
  }
}

Remember, that you need to have something in the routing table!

routing-options:
 static {
   route x.x.x.0/24 discard metric 100;
   ...
 }

 protocol {
   bgp {
    group uplink {
      type external;
      description foobar_uplink;
      export foobar-export;
      neighbor x.x.x.x {
          peer-as <ASNUM>;
     }
   }
 }

Remember to also filter the import or your can be flooded