Can't access router remotely via ddns link

zillah · Post by **zillah** » Sun Jul 18, 2021 8:46 am

showthread.php?291910-ASUS-Router-Merli ... ip-address

Hi

I had DDNS setup on my ASUS RTAC5300 Merlin firmware as per attached snapshots

My DDNS from no-ip is linked to the CGNAT ip address not public ip address

https://imgur.com/a/sqUEXG3

Does that mean I won't be able to use DDNS ? Or is there a work around ?

Thx

Post by **Philip** » Sun Jul 18, 2021 9:36 am

That's a very good question, I am not really sure how to set DDNS behind a reserved IP range. Theoretically you are on a private network, and any ddns redirects would be to the public IP of your ISP, that IP/device/node would have to then translate packets and forward traffic to your private/reserved IP.

zillah · Post by **zillah** » Sun Jul 18, 2021 9:28 pm

Thx Philip
You guess it might not be doable ?

Post by **Philip** » Mon Jul 19, 2021 8:23 am

I am not sure, it would have to be supported by your ddns service. The client (your private/reserved IP) can still make a connection out (port triggering) in order to open incoming ports to that address, so the client software on your end would have to ping out to the ddns provider to open the ports. It is just more complex proposition than with regular public IP addresses, I don't know what/if ddns services support that.

zillah · Post by **zillah** » Mon Jul 19, 2021 10:29 am

Noted
Thx Philip