12-23-2002 01:35 AM - edited 03-02-2019 03:46 AM
I have a 1720 connected to remote site 3620 through one serial and one BRI.
Right now I am using static route, I intend to use OSPF. How do I configure to prevent OSPF bring up the dialer interface? Is there any related document?
Thank you.
12-23-2002 04:00 AM
access-list 100deny ip any 224.0.0.0 0.0.0.255 (denies multicast, hello packets )
access-list 100 deny ip any host 255.255.255.255 (denies broadcast)
access-list 100 permit ip any any
dialer-list 1 permit ip list 100
12-23-2002 04:50 AM
We just put "Passive Interface" on the dialer , this prevents any ospf updates from being sent out the interface . Keep using a static for ISDN with a high weight of say 250 and use ospf for your normal serial line traffic , if the serial goes away the static takes over and should bring up the isdn , works well for us .
12-23-2002 06:29 AM
Thank you very much! I will try this out.
12-24-2002 10:49 AM
Hello,
you can use ip ospf demand-circuit and ip ospf cost command to suppress ospf to bringing up dialer interface and using serial as primary link
http://www.cisco.com/warp/public/104/dc.html
best regards
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