hi, all I have a question about OSPF over DDR. The lab scenario is:
1. RTA and RTB connect with each other using back-to-back connection with serial PPP connection, and use the asynchronous interface as the backup interface. 2. And on each router there is a ethernet interface as a stub network. All the networks run ospf and belong to 3 areas respectively. PPP and its backup links are all in the area 0. 3. I have use the "broadcast" key word in the rout map, and correctly define the dialer-list with ip permit. Question: When the primary PPP link is down, the DDR works correctly. But there is not hello packet can be find on the DDR. When I show the interface asynchronous 1 under the ospf, I find that: no hellos (passive interface). What is mean? Why? can not explain it. Can you help me? Thanks a lot. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=28666&t=28666 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]