Cisco IOS Firewall feature

[Daniel Howe <dhowe () cirsa com>]

Hi there,
looking for a good firewall solution and after reading some info of the
cisco PIX firewall,  I found out about Cisco IOS Firewall Feature Set.
I know is just a software solution, but the questions are:
 -how good is this software solution compare to a classic hardware one ?
 -how much delay generates in the router ? 
 -and  the last one, is the software running in the PIX the same one as the
Cisco IOS Firewall Feature Set?

Thanks a lot!

Daniel Howe.

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