2 WAN interfaces with IPs on the same subnet
Norsmith
Newbie ✭
Have a questions regarding the second WAN port settings on my Sonicwall Tz270
Trying to setup the second interface as a WN port for the External IP in the same subnet as the first WAN interface and have the Error Message:
"…Subnet on this interface overlaps with another interface…"
Is it any solution to use 2 external IP on the same subnet fort the 2 WAN interfaces?
Thanks.
Category: WAN Acceleration
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Best Answer
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Arkwright All-Knowing Sage ✭✭✭✭
The short answer is "no".
Why do you need two physical interfaces in the same network? Is this for redundancy?
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Answers
Thanks for answer,
yes for redundancy.
I don't think PortShield works for WAN interfaces but there are some other modes.
L2 bridge mode might work, but I suggest you test it to make sure behaves in the way you're expecting.
https://www.sonicwall.com/support/knowledge-base/configuring-layer-2-bridge-mode-in-sonicos-enhanced/170505396170557
I have 2 VPN channels and guess in this scenario I have to make a lot of adjustment compared with the regular failover WAN port .
In any case thanks for answering :-)