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Forum Discussion
Dinner42w_aView
Nov 27, 2025Aspirant
Can LAN interface of RS100 be set to a public IP address?
I have obtained a /29 range of public IP addresses from my ISP. That /29 network resides on the LAN interface of the cable router/modem/whatever you want to call it. At the moment I am using a Zy...
Dinner42w_aView
Dec 05, 2025Aspirant
An update for the benefit of anyone who was thinking of purchasing the RS100 for the same job as I did.
The answer to my original question was 'Yes' - it WOULD let me assign a public address to the LAN interface.
However it WOULDN'T let me disable NAT, meaning that none of the LAN-side devices were able to use their static IPs properly.
When I went to whatsmyip.org on any of the LAN-side devices, instead of showing the device's own static IP (45.11.x.x), it would instead show the IP address of the WAN interface of the RS100.
So it's back to Amazon for the RS100 I'm afraid, and the search goes on for a router which does the job I want it to do. That's the fourth device I've tried and every one has had SOMETHING preventing it from being the solution.
an old Huawei: Worked perfectly except due to its age it only has 100Mb ports;
a Sagemcom: Wouldn't let me set LAN interface to a public IP;
A Zyxel: Worked perfectly except for some unexplained reason it couldn't do more than 100Mb/s upload (the others would do over 200Mb/s)
Thanks to everyone for contributing!