How to duplicate the LAN to WAN traffic from FG-A to FG-B's LAN to WAN?

[choee840408]

As per the subject, how to duplicate the LAN to WAN traffic from FG-A to FG-B's LAN to WAN. The LAN IP is 172.20.1.254 and the WAN IP is 10.0.9.246. As shown in the image, how should this be handled?

[Toshi_Esumi]

Your problem statement is not clear. Are you trying to set up high-availability(HA)/redundancy between two FGTs? If those two FGTs are standalone those are conflict each other and wouldn't work well. Cisco switch also might block one side over the other.

Toshi

[choee840408]

"It's not about doing HA, but rather making FG-B perform port mirroring. Is this feasible?"

[Toshi_Esumi]

I don't think it's possible. As I said even the Cisco switch wouldn't recognize two devices with the same IPs on two different ports. "switching", MAC-IP mapping, wouldn't work.

Toshi