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DMZ config on RV082 router

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We are connecting 2 offices with a dedicated point to point connection. Both offices have the Cisco RV082 router. In both offices, the routers are being used for internet on the WAN1 port. This model has a WAN2 port, which can be configured as Dual-WAN or DMZ. Dual-WAN appears to be for load balancing and fail-over.

I am planning on configuring WAN2 in DMZ mode on each router for our point to point connection. In one office, the WAN2 port will have to be a private IP (192.168.177.1), and in the other office it will be a public IP (this is due to some other technical reasons i dont need to get into here).

My question is will this setup work? Do i need to worry about assigning a private IP to the DMZ port? Do I need to change the router from "gateway" mode to "router" mode?

I am adding routes to each RV082 so that the networks can talk.

I have called Cisco support and this model is out of warranty. I also posted on the Cisco forum, but have received no help so far.

Any tips or suggestions would be greatly appreciated.

Answers

I am posting the answer here in case anyone else runs into this.

This is not possible because the RV082 router has to either be in "gateway mode" or "router mode". If it is in gateway mode, then the router is doing NAT, and the DMZ port will not route to another LAN. If it is in router mode, then there is no NAT so the internet will not work. But in router mode, the DMZ routes correctly to the other LAN.

We ended up adding a second router and the configuration is working.

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