Yes, you can specify in your AOLserver ini file to what IP address and port the server responds. In the section,
Take a look at http://aolserver.com/docs/config.adp
and pay attention to the section that specifies:
#
# Socket driver module (HTTP) -- nssock
#
ns_section "ns/server/${servername}/module/nssock"
ns_param port $httpport ;# Port for HTTP (typically 80)
ns_param hostname $host ;# This is not the same as your hostname
ns_param address $address ;# This is not the same as your host addr
ns_param location "url" ;# URL for auto-redirects (trailing slash)
You also need to make sure that you have both IP addresses setup on the box. ifconfig -a should tell you if they are.