By design, hellos and lsa's are surpressed. Do a search on CCO for a demand circuit for further info..
""[EMAIL PROTECTED] (Aaron ZHAO)"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > 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=28669&t=28666 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

