How to follow IP changes in LAN to avoid remote connectivity issues

I’ve set up remote access to a computer and had to enter the authorized IPs which can connect remotely to the computer. These IPs change from time to time and I have no control over that, so every time they change I have to go update the authorized IPs list. Usually, a user will let me know that the connection failed.

Is there a way to somehow track this IP changes (happening on a company’s LAN) so I can proactively update my list instead of having to wait until the connection fails to go and see what the new IP is ?

If it’s not possible, how is this usually handled by IT security professionals ?

Go to Source
Author: Trusky

Can a router be configured from outside the local network?

My router can be configured by going to 192.168.1.1:80 when connected either by WiFi or by Ethernet cable.
Can the same configuration web interface be accessed from the external interface (the public IP of the router)?

Some background:
I have a “Technicolor TD5130” and I wanted to change the default password that the ISP preconfigures. But even after changing the password, the default weak password for some weird reason still works. So I’m wondering if someone can access the router configuration if they can’t initially connect to the router through Ethernet nor WiFi.

Go to Source
Author: RationalFragile