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MikeMike's avatar
MikeMike
Aspirant
May 28, 2018

Nighthawk M1 (MR1100) / DD-WRT Double NAT

Hi All,   I am experieincing a double NAT condition with my Nighthawk M1 in IP pass through mode as described in this post: https://community.netgear.com/t5/Nighthawk-WiFi-Routers/Nighthawk-M1-MR...
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MikeMike's avatar
MikeMike
Aspirant
May 28, 2018
Thanks for the reply. I'm already in IP passthrough mode on the M1 and the WAN interface on the DD-WRT successfully gets the internet facing IP, gateway and DNS. The problem seems to be that that doesn't disable the NAT on the M1 and double NAT results... That's what I'm trying to solve.

Thanks,

Mike.
TheEther's avatar
TheEther
Guru
May 28, 2018

Most mobile Internet providers use CGNAT.  If your Internet facing IP is any of the following, then it's not a public IP address.  You won't be able to avoid double NAT.

  • 192.168.x.x
  • 10.x.x.x
  • 172.16.x.x through 172.31.x.x
  • 100.64.x.x through 100.127.x.x