We are in need of upgrade of firewall device currently Pix512. We have propostion of three solutions each with varying cost. The lowest cost is Active/Standby dual 515e, then redundant ASA5510s and the most costly redundant ASA5520s. We need to accomodate at least 100 hosts on our LAN that use outside internet, about 20 VPN's from outside users to the network and VPN tunnel from Pix515 in our another facility. The demand is expected to increase. I'd like to know how those devices compare performacewise and espeially how much better is ASA over PIX line of firewalls. Also is there a varying mode for Active/Active Active/Stanby on ASA and is there different licence cost.
I have this problem too.