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08-08-2020 01:07 AM
Telus just updated my DSL modem to the T3200M. Having difficulty port forwarding and noticed that my new modems IP address is different than my public IP address (via What's My IP or Dynamic DNS Service). I always thought the modem IP address was the same as the public IP. To what address do I route to connect to an device behind the router?? Can you successfully port forward with the T3200M?
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07-07-2021 12:17 PM
If your public IP address is different than your router WAN IP address then it's due to Carrier Grade NAT. We are running out of public IP4 addresses so carriers need to put a shared layer of IP4 addresses between some customers and the public Internet. This is why port forwarding at your router doesn't work. You would need an additional port forward from the true public IP at the carrier level to your WAN IP which of course we can't do.
There are many discussions on this in the Neighborhood:
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08-08-2020 01:42 AM
Your WAN IP address on the router status is your public IP address. Mine checks out. Try canyouseeme.org when connected to your router.
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08-08-2020 10:35 AM
My router, under WAN Connection Status, indicates my modem IP address is 100.XXX.XXX.XXX. The website you provided and the normal 'what's my IP?' search, and the DNS reporting from my connected IP cameras suggest my public IP address is 209.XXX.XXX.XXX. I'm no IT expert but that's the first time I've seen this.
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08-08-2020 03:04 PM
That's strange indeed. Can you post a screen shot of the T3200M status page? You only need to hide the last 2 subnet ranges (100.000.---.---)
Have you rebooted the router to see if it makes any difference?
Have you rebooted the router to see if it makes any difference?
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08-08-2020 03:07 PM
Hide the MAC address and SSID's as well.
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07-07-2021 12:43 AM
Very curious if this was resolved? Im having the same issue with mismatched WAN ip adresses. Can't access my local server from WAN with port forward.
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07-07-2021 12:17 PM
If your public IP address is different than your router WAN IP address then it's due to Carrier Grade NAT. We are running out of public IP4 addresses so carriers need to put a shared layer of IP4 addresses between some customers and the public Internet. This is why port forwarding at your router doesn't work. You would need an additional port forward from the true public IP at the carrier level to your WAN IP which of course we can't do.
There are many discussions on this in the Neighborhood:
Reply
