Add option to assign an FHRP group to a tunnel termination

[dreng]

NetBox version

v4.1.6

Feature type

Change to existing functionality

Triage priority

N/A

Proposed functionality

In the "add a new tunnel" screen, please add an option "FHRP Group" to the first and second termination type. If selected, the following field (that switches between "Device" and "Virtual Machine") should change the Caption to "FHRP Group" and query FHRP Groups.

Use case

With a redundant tunnel hub, it does not reflect the reality that the termination must be assigned to a device. Instead, the termination should be assigned to a virtual interface which does not belong to a specific device but to a FHRP Group.

Database changes

Not sure

External dependencies

None

[wlnx]

I'd like to point out that in fact a tunnel termination point is not an interface but an IP address (or even an IP address set).

[jeremystretch]

Yeah, I don't see how this is intended to work. Tunnels must terminate to interfaces.

[wlnx]

Yeah, I don't see how this is intended to work. Tunnels must terminate to interfaces.

Uhm, sorry. I've read some discussions and discovered that virtual interfaces should be created for tunnels to terminate. That's OK (IPsec tunnels don't seem to be OK, but let's leave them alone). Anyway, I found no option to create a virtual interface on top of FHRP. Maybe, I missed something, could you show me the way, please? Thank you.

[dreng]

Tunnels must terminate to interfaces.

I agree. But in an active/passive configuration, how would you suggest to document such networks? Let's say, wie have two routers in an active/passive HA cluster, R1 and R2. In the current situation, you have to define the tunnel termination to an interface of just one of this devices, let's say tun0 of R1. If R1 fails, R2 becomes active automatically, which means that the tunnel termination switches to tun0 of R2. This situation lets the documented state in NetBox instantly become incorrect. I currently don't see a good workaround without changing NetBox code. Suggestions are welcome.

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