[Zope] need to make zope accessable from only two different IP-Addresses

I already setup Zope, I'm using FreeBSD 4.6 and Zope from the ports collection. How can I define the hosts which are allowed to access the Zope Server on Port 8080? Thanks for any help, Manuel -- The City of Palo Alto, in its official description of parking lot standards, specifies the grade of wheelchair access ramps in terms of centimeters of rise per foot of run. A compromise, I imagine...