loopback interfaces and OSPF Areas

RouterOS General
1

Good day,

Quick question.

Is it better to put the loopback interface in the backbone are + the ptp links or the loopback interface in their own ospf area?

2

As you assign the router ID to it, I would assume backbone

3

Hi, depending on your design, but most of the times I’ll choose to use the same area for all of the subnets configured in a router.

4

I use loopback interfaces at backbone areas but if use another area with area-id 0.0.0.1 I do not use loopback. do i need to use them ?

5

I really depends on your design… there are so many different scenarios where loopbacks are included, and one of most important ones is to deploy iBGP between internal routers, where the loopbacks are really important.

If you want to access your routers from a remote site using only loopbacks instead of WANs, then yes, you’ll need to use them..