Frr: Can I use FRR to directly create a loopback interface?

[VictorCaiShen]

I found create a loopback interface in Kernel was very complex. SO, Can I use FRR to directly create a loopback interface?

[donaldsharp]

There is no code in FRR to add interfaces ( beyond some very very specialized code around pim ). Can you explain a bit better what you are trying to do? loopback devices under linux and *bsd are auto-created at run time.

[VictorCaiShen]

There is no code in FRR to add interfaces ( beyond some very very specialized code around pim ). Can you explain a bit better what you are trying to do? loopback devices under linux and *bsd are auto-created at run time.

I have no idea to do it. But alot of protocols need loopback dev, like BGP needs loopback update source and as a peer. I will try to find a solution.

[sworleys]

you can create loopback interface via the iproute2 command in linux

[sworleys]

@polychaeta autoclose in 1 week

[VictorCaiShen]

you can create loopback interface via the iproute2 command in linux

Thanks alot.
Which iproute2 command ? ip link add name loop0 type dummy? I'm not find loop type. And input ifconfig, the flag of dummy dev is not loopback.

[polychaeta]

This issue will no longer be automatically closed.

[paulnice]

https://superuser.com/questions/1089092/how-to-add-a-second-local-loop-back-address