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	F E A T U R E

IPSec VPNs: Take Us To the Pilot September 20, 1999 RadGuard cIPro-VPN RadGuard's cIPro-VPN held its own, with good management functionality, but we couldn't run our performance tests successfully even after swapping infrastructure hardware and downgrading the cIPro-VPN firmware. We also experienced failures in which management communication was cut off even though we could run encrypted traffic through the VPN. It is also the most expensive device--$51,450 with 1,000 clients, though the cIPro-VPN hardware starts at a low $6,450. That's a tempting price if you want to leverage the Internet for either your intranet or extranet. During installation with our first version of the software (version 3.46), we ran into IP configuration issues in which we were unable to configure out 192.168 subnet as a class B (see "Supernetting a Class C Address," at right). Technically, 192 is a class "C" address range, but there is no reason for that convention to be enforced. Working with RadGuard technical support, we first had to configure the cIPro-VPN with Class C addressing and then change it to Class B through the management station. When we downgraded to V3.30-J1 at RadGuard's request to solve some performance issues, we were forced to reconfigure our network to a Class C network. The cIPro-VPN configuration is very much like a firewall, but it's more complex. We first had to enter the VPN configuration rules in the Policy Table and then added Security Policy entries in another table on each cIPro-VPN. Once that was complete, we were able to send ping traffic through the VPN, but not much else. RadGuard surely will discover and resolve the performance issue before long. cIPro-VPN, $6,450, RadGuard, (877) RADGUARD, (201) 828-9611; fax (201) 828-9613. www.radguard.com or info@radguard.com Send your comments on this article to Mike Fratto at mfratto@nwc.com.
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