Setup: Our school district currently has 12 websites running on 12 seperate Windows 2000 servers behind our ASL 5.103 firewall. As of right now, we own 254 public ip addresses so I have just been updating the DNS to show that school X is a certain IP and adding that to my external interface as an additional address on that interface. Using SNAT/DNAT I have been able to operate this way with no problems.
Situation: We are considering switching to a new provider and if we go with them each additional IP is $10-$15. Once we add up the price of the IPs we actually use ( not all 254 ) it becomes cost prohibitive to make the change.
Question: If we are restricted to the 1 public IP will the ASL box be able to determine which site the traffic was intended for based on the HTTP header info or will I have to resort to running the sites on different ports and using the SNAT/DNAT to route the packets?
I hope the above wasn't too confusing.
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