Point-to-Point Loopback

Sanis4lifeSanis4life Banned Posts: 60 ■■□□□□□□□□
Why would one want to add the network type point-to-point on a loopback interface in a real-world situation? Or, is it merely for labbing purposes?


  • networker050184networker050184 Mod Posts: 11,962 Mod
    I have never done it, but one situation I could think of is if you are NATing through a range of addresses assigned to a loopback and want the whole subnet advertised via OSPF rather than a /32. A lab is the only place I've actually used it though personally.
    An expert is a man who has made all the mistakes which can be made.
  • burbankmarcburbankmarc Member Posts: 460
    Yeah I've only seen it done in a lab. If you want to advertise a block of addresses that aren't on any of your interfaces just make a static route to null0 and redistribute that into ospf.
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