Question: Can we have HA setup between Netgate 2100 and Netgate 4100 device?

jasjitchopra

Is it absolutely required that both devices need to be on same hardware spec with exact match?

SteveITS

@jasjitchopra It used to be the case to sync states, but not since 22.01, see
https://docs.netgate.com/pfsense/en/latest/highavailability/pfsync.html#pfsync-and-physical-interfaces

Edit: to clarify, the hardware doesn't have to be identical for HA, but the interfaces/interface order needed to be. If the routers have the same packages and usage then it would help if they are reasonably close in spec.