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Using a bridge as a WAN interface?

We are setting up an HA pair of XGs, with redundant routers in front of the XGs. I'd like each XG to have a connection to each edge router (clustered). The easiest way to do this would be to configure the routers in failover mode, and use a bridge interface as the WAN on the XG, with one cable from each of the two ports in the XG bridge going to one of the two edge routers. It does not appear that the XG is capable of treating a bridge group as a WAN port. Is this the case?

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0 rfcat_vk over 3 years ago

Hi,

what model hardware and which version of XG software?
were the two interfaces part of the wan before you created the bridge?
ian

XGS118 - v21.5.0

XG115 converted to software licence v21.5.0

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- 0 Jeremy Parr over 3 years ago in reply to rfcat_vk
  
  I have two XGS2300s in an HA pair. Running 19.0.1. Trying to create a bridge group from scratch using two unconfigured interfaces.
  - 0 Jeremy Parr over 3 years ago in reply to Jeremy Parr
    
    Just tried it with 19.5, same issue. This Bridge one of WAN IPs to Cisco thread implies that it should work.
0 Jeremy Parr over 3 years ago

For future reference, an XG will not let you configure a bridge group as a WAN port. Fortunately I have a pair of Mikrotik routers in front of the XGs, allowing for a great deal of flexibility. The Mikrotiks are running VRRP on the WAN side, and NATing the traffic from the XGs, so I can have one interface on each XG go to an interface on the router(s). This provides a fully meshed path from the edge to the network core.