Anyone find that they need to use IP 192.168.2.2? Mine works from the default IP. In fact I think you can eve set it up from the default. -- Argue opinions using facts. Not facts using opinions.
Usually easier telling people to stick with one, not make their lives more confusing If you know what you're doing, you'll figure out that you can do it with any IP. I just assigned it to 192.168.2.2 while messing around with francoisr's idea. But yeah, you can pretty much do it with any internal IP.
Sticking with 192.168.2.2 just makes it a lot easier to remember, since you shouldn't use the one you're assigning this to anyway (unless you want all your ports open - which no doubt would make this guide partly useless). If you can remember another IP easier, go ahead and use it
If you find it easier to wipe out the IP for mfadmin, then type in the IP again next time you want to edit something, go for it. I just personally find it easier switching between 192.168.2.(whatever i forward ports to) and 192.168.2.2.
If you know what you're doing, you'll figure out that you can do it with any IP. I just assigned it to 192.168.2.2 while messing around with francoisr's idea. But yeah, you can pretty much do it with any internal IP.