If pfsense a suitable choice?
I have a client with a network connected to the Internet through an aging and flaky Cisco 3620. It's a 50mb/s "burstable" link to the internet, with average sustained output to the internet of about 15-20mb/s (peaking around 40mb/s) and input from the internet of 3 to 10 mbs. They mostly serve web pages. They have 6 class C ranges and about 30 or so physical servers. Currently the Cisco has a very small number of filters in place to block undesirable networks, but not a lot else.
They're thinking of putting pfsense on a 2.8 GHz Intel box (single core 32 bit) with 4 gigs of RAM and a couple of Intel Pro/1000 cards (because that's what they have laying around).
Does that sound reasonable to replace the Cisco? Or should they use something beefier for hardware?
A pentium 3 could probably handle that kind or traffic. But that machine should. E able to handle that with ease.
Yes, for firewall/routing duties your suggested system will easily handle a 50Mbps connection. You haven't specified what cpu and there is obviously a big difference between a 2.8GHz P4 and a 2.8GHz i7 (though that isn't single core but you get my point!). However even the oldest 2.8GHz CPU will still be fine although power hungry.
After looking at it the BIOS reports the CPU as an Intel Pentium D 2.80 GHz with two cores. Guess that's plenty. Thanks for the replies guys.