I am seeking guidance. I have read many a post concerning the issue of firewalls and a few on routers, but none seem to be directly applicable. Here is my setup:

Cable modem via Linksys BEFW11S4 router. Computer is P4 2.0A running XP connected via Ethernet 100 mbps to router. Running Zone Alarm Pro 3.0.118, their latest version.

I am operating via TCP/UDP port 1214. Failed to connect. Added HTTP (TCP) ports 80, 8080, and 8000 and connection succeeded. Why was that necessary? All other programs are programmed to prevent access of TCP/UDP port 1214.

The program attempts to access other TCP/UDP ports which I block. Zone Alarm is also blocking ICMP (type10;subtype2) inbound requests within my home network and UDP outbound to my cable provider. I'm not sure why or what in my configuration is causing it nor do I know if it is impacting my connection.

Can someone help me with the correct configuration that will allow me to get the most out of my connection without making my computer vulnerable? Thank you in advance.