Just enable the "ip ospf demand-circuit" cmd under the dial backup interfaces
The LSAs are than exchanged only once with DNA bit set, periodic refresh (30 min by default) is suppressed and LSAs are sent only when there's topology change -therefore the remote site should be conf at least as stub (to minimize the impact of topology changes) Also periodic hellos are suppressed -though the adj remains up even when the dial interface goes down/up(spoofing) Search for ospf demand circuit feature adam -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Paul Stewart Sent: Wednesday, February 22, 2012 6:33 PM To: [email protected] Subject: [c-nsp] Dial-Backup / OSPF Hey folks. Looking for some pointers (docs are fine too). We have a customer that has multiple locations fed by fiber or other dedicated connectivity. At each location we will be also installing an analog phone line for dial-backup purposes. Each remote location also communicates back to our network via OSPF today. The remote site configuration (Juniper) we have figured out, but what we're trying to get our head around is the dial-up coming in. We would be terminating the dial-up connections on a Cisco AS5400XM box. Each inbound user session would have a static IP address assigned (/32) and we are looking for a way to establish OSPF sessions to each of those /32 addresses? Thanks, Paul _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
