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9 Messages
Accessing my external IP from my internal devices
I just upgraded my gateway from an XB6 to an XB7 and I had this working before. I can access my public IP (on a specific, not blocked port) from outside my network. So the gateway is routing external traffic appropriately. However, if I try to access that external IP from my INTERNAL network, the traffic will not be get there. Basically you can't reach the external port from the internal network. I don't remember having them do anything special to get the XB5 to work. Is there a setting somewhere that I or they can change to get this to work?
EG
Expert
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110.4K Messages
4 years ago
You can't. That's called NAT loopback or hairpinning, and they have it disabled in the Comcast supplied gateway devices.
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doncaruana
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9 Messages
4 years ago
Well, actually, let me update this a bit. This has 4 ports on the back. I have some devices coming through a switch that's plugged into one of the ports and then my main computer which is plugged into a different ethernet port. The main computer CAN access the external IP. But the other ones cannot. I have tried every cable in every port and this is still the case. And, keep in mind, I'm coming from a Comcast supplied gateway device that I just got last year where this was all working and it is working for a device currently - so it doesn't look like it's disabled. And I didn't change any internal configurations with the gateway switch - I just plugged in the same cables into the new gateway.
(edited)
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EG
Expert
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110.4K Messages
4 years ago
O/k... If you get it figured out please post back here with the solution. Thank you. Good luck !
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