Can I change an Ethernet port to act as a third Internet backup link?
This is the scenario.
I have an MX84 which ports 1 and 2 will act as primary and secondary internet links (WAN 1 and WAN 2). However, since internet links will not be installed by the commissioning day I have been planning to get a 4G temporary router plugged to port 3 in the MX and somehow get it configured as a second internet backup link (WAN 3) in case the 2 internet links fail.
Is it possible? Can anyone guide me through a similar solution?