Specifying autonomous system border routers (ASBRs)

ASBRs advertise non-OSPF routes into OSPF domains so that they can be passed along throughout the OSPF routing domain. A router can function as an ASBR if one or more of its interfaces is connected to a non-OSPF network (for example, RIP, BGP, or EGP).

To configure a router as an ASBR:

1. Choose IP Routing > OSPF.
2. In the General tab, click the ospfASBdrRtrStatus check box to designate the router as an ASBR.

The default is set to disabled.

3. Click Apply.
   
   

   Note: To conserve resources, you may want to limit the number of ASBRs in your network or to specifically control which routers perform as ASBRs to control traffic flow.