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Configure static WAN IP w/ 255.255.255.255 mask

STFinnSTFinn Newbie ✭
in Entry Level Firewalls

We have a Verizon M519 in passthrough mode and an assigned static IP (/32) address. They told me to configure the static IP on our Sonicwall using a 255.255.255.255 mask and leave the gateway blank. My Sonicwall won't accept the 255.255.255.255 mask. What am I missing? Thanks.

Category: Entry Level Firewalls
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Answers

  • ArkwrightArkwright Community Legend ✭✭✭✭✭

    I think you're missing a lack of support for the configuration you're attempting :)

    I can't see how a /32 mask would work on anything other than a PPP link? Biggest mask SonicOS supports is /31.

  • STFinnSTFinn Newbie ✭

    You're right. Turns out I used the /31 mask and entered a Gateway one less than the static IP and it worked. Guess I was given wrong advice by the Verizon tech! Thanks for the reply.

  • ArkwrightArkwright Community Legend ✭✭✭✭✭

    If I was right, then it's by accident! I had no idea that would actually be the fix when I suggested it.

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