How do I configure my 7800 series router to assign a static IP to a computer via DHCP?
Posted by Billion UK Support on 19 July 2011 06:13 PM


In order to configure your 7800 series router to assign a fixed IP to a networking device, you will need the follows:

1) The MAC address of the device

2) Decide a LAN IP address within the same subnet as your LAN but outside the 7800 series router's DHCP range. e.g. default DHCP range for Billion router is So your are ok to use or

First, you will need to login to the router's web interface via (default router IP).

On the web interface click on Advanced > Configuration > LAN > DHCP server > Fixed Host



Then enter a new for the fixed host your are creating, its MAC address and the IP address you would like to assign to it.  Click "Add".



Then you can see the fixed host rule created, just click Save to save the settings and you are done.