Sonicwall NSA-240 - Fully patched and updated.

X0=LAN (primary site)



X1-WAN1 (secondary site)

I now have a new ATT MPLS circuit on WAN1. Traffic from our secondary site that is destined for our X0 subnet is routed over WAN1 via ATT cloud based firewall.

I need to allow all traffic from on WAN1 access to the LAN.

I am thinking transparent or L2 bridge mode? Any help appreciated.

  • 2
    Why are there two X1 interfaces? Apr 10, 2015 at 7:32
  • Did any answer help you? If so, you should accept the answer so that the question doesn't keep popping up forever, looking for an answer. Alternatively, you could provide and accept your own answer.
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    Aug 11, 2017 at 15:02

1 Answer 1


You do not need transparent mode. Your firewall will forward traffic from the WAN1 to the LAN interfaces, assuming your policies allow it. To configure these policies, you will need to create firewall rules for the LAN to WAN and also be sure to add routes to this firewall and the firewall at your secondary site for and (respectively) so that traffic will route through the correct gateway.

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