Full Disclosure mailing list archives

Re: Suggestion for IDS


From: Valdis.Kletnieks () vt edu
Date: Wed, 28 Sep 2005 13:42:49 -0400

On Wed, 28 Sep 2005 17:48:59 BST, "Paul S. Brown" said:

I suspect the argument here has to be cost-for-cost - in the price range for a 
decent beefy OpenBSD box you aren't going to be using FWSMs, and I can quite 
believe that the PIXen in that price range don't perform - the PIX 501 is 
specced at 60MB/s throughput and the cheapest retail price I can find for it 
is $678 for the unlimited license version - for the same money you can get a 
beefy PC which will push quite a bit more than 60MB/s

http://www.dealtime.com/xPO-Cisco_PIX_Firewall_501_PIX_501_BUN_K9
has at the moment 4 quotes from $449 all the way down to $382 including shipping.
That's the first non-CISCO, non-sponsored link I got googling for 'PIX-501'.

http://stores.tomshardware.com/search_getprod.php/masterid=515798//
has a 50 user bundle for $489.

http://stores.tomshardware.com/search_getprod.php/masterid=923020
has a 50->unlimited upgrade for $158.  Add to previous for $647.

A lot of sites don't need the "unlimited" license, because they don't have
over 50 IPs on the LAN.

And remember to calculate the TCO - you roll-your-own PC for under $400, you're
not going to be getting as much beefy, and I didn't see any discussion of what
a PIX admin will cost you versus the expense of finding an OpenBSD person -
especially down in the "We only have 10-25 people with PCs" arena where you'll
be lucky to have a budget for a McSE (you want fries with that?)

(In the interests of fairness, you don't need much beefy if you're Cisco -
the listed technical specs on the innards of the PIX-501:

Processor: 133-MHz AMD SC520 Processor
Random access memory: 16 MB of SDRAM
Flash memory: 8 MB
System bus: Single 32-bit, 33-MHz PCI

Comparing the rated 60Mbytes/sec with that system bus, and the fact that
traditional designs will require at least 2 PCI accesses per (one inbound
from ethernet to memory, and one outbound from memory to the ethernet), and
it becomes clear that there's some major black magic - 2 PCI cycles per only
leaves them 6MBytes/second of PCI bandwidth (and more importantly, also means
that you need to have enough smarts to keep the inbound pipe drained and the
outbound pipe full all the time....)

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