At my workplace we are considering the implementation of a DMZ. Right now we use a Cisco ASA firewall for the Internet. We have multiple other outside lines that we need to secure other than the Internet.
I think that MS ISA 2006 would be ideal because of its capabilty to secure as many lines as the platform has NIC card slots. But the Cisco guys dismiss a software firewall as not a serious solution.
I need some outside input on the advantages/disadvantages of a software firewall like ISA 2006 versus the hardware type that Cisco sponsors.
BTW I know MS is coming out with a new firewall but I am not familar with it.