Double NAT

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Double NAT

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Double NAT
Double NAT
2023-12-15 02:41:58 - last edited 2023-12-18 07:16:16
Model: Deco S7  
Hardware Version:
Firmware Version: Deco s7

Hi everyone,

 

I've got a double NAT type on my Xbox and my Deco S7 is the only modem I have connected to my FTTP. I read this happens when you have two routers/modems connected but I have only got the one.  Anyone know how to fix this?

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Re:Double NAT-Solution
2023-12-15 10:35:21 - last edited 2023-12-18 07:16:16

  @taylorjayne 

Hi, It is suggested to refer to this link:

Double NAT

Best regards.

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Re:Double NAT-Solution
2023-12-15 10:35:21 - last edited 2023-12-18 07:16:16

  @taylorjayne 

Hi, It is suggested to refer to this link:

Double NAT

Best regards.

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Re:Double NAT
2023-12-16 04:38:21 - last edited 2023-12-16 04:39:02

  @taylorjayne or your ISP uses CG-NAT, that is essentially the same as an additional NAT router.

 

My ISP uses CG-NAT and I pay the 5 bucks a month for a fixed IP that bypasses the CG-NAT.

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#3
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Re:Double NAT
2023-12-21 09:04:57

  @taylorjayne 

 

another view can be : 

 

Stop using IPv4 and switch to IPv6 where there's no NAT.

And use IPv6's prefix delegation on your system between routers as it is a really basic function of IPv6..

 

Note : don't use multiple IPv6 address as you're entitled to because Deco's firmware finds it very difficult to manage (Yes, really ! It is easy to be locked in your own fd00::/8 network without any exit). Just keep your stuff on your external IP (the 2000::/3 network) and manage the exposure through your firewall..

 

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