Access Nagios webpage on 2 interfaces


Dear All,
I have Nagios running on a PC which has two ethernet cards, eth0 and eth1. Each interface is on a different network, like eth0 is on n/w 10.111.X.X and eth1 is on n/w 100.1.X.X (recently configured). The Nagios webpage is accessed remotely by typing “http://10.111.X.X/nagios3/index.html”. Now, I would like to access the same webpage from the 100.1.X.X network i.e. via the eth1 interface.
Is this possible? Are there any configuration parameters that need to be changed/added? If so, where?
Thanks for your replies.