Enabling OSPF on a port

[techcontroller]

I am currently working with a Cisco 3700 router. The router had come with a previous config that was put there as a default, and just needed a few IP tweaks to run with our current system. We then switched the protocol to EIGRP to use a protocol we were more familiar with. This however failed for us. So we went back to OSPF with some new guidance from the system designers.

Our issue is this: How do you enable OSPF on a single port. I have searched with my peers for quite some time, but we could not find the command/syntax in which to do so.


Any help would be appreciated.

Thanks

 

[octavian10]

Router(config)# router ospf 123
Router(config-router)# network 172.16.10.1 0.0.0.0 area 0

The first command turns on OSPF with the process number 123. You can pick any number from 1 to 65535 for the process and it is not related to your OSPF area.
The second command advertizes the interface, because OSPF advertizes interfaces not networks. Read the line to say, any interface with an exact address of 172.16.10.1 is to be put in area 0. You can also use wild card masks, for example 172.16.10.0 0.0.255.255 area 0, this says any int with an address 172.16.x.x is to be put in area 0.

Hope this helps.


"I hear and I forget. I see and I remember. I do and I understand."
- Confucius (551 BC - 479)

 

[vipergg]

If you already have ospf setup with the network statements etc... then we normally use "passive interface default " then do a "no passive-interface <interface > for any port that you want ospf advertisements to go out .

 

[techcontroller]

Thank you to all of you who have answered. It has been a few days since I have been able to check on the responses. Octavian, this worked for me as far as enabling OSPF on the ports.

I guess to build off of that is my next question: How do I get VPN tunneling to work between two Cisco 3700 series routers? I am not sure what to look for when I am looking, and all I can find info on most times is a VPN Concentrator.

Any help would be appreciated.

Thanks

 

[octavian10]

Have you performed any vpn configurations on either of the two routers that are not working, or are you looking for some configuration examples? If so, are either of these routers perfroming NAT/PAT for their prespective networks? I can post a site to site config example but I need to know a little more about your situation ie. NAT/PAT for private addressing.

"I hear and I forget. I see and I remember. I do and I understand."
- Confucius (551 BC - 479)