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continued from page 2
NAC appliances reveal who's rapping at your network door
As comprehensive as this appliance is, it does have one
flaw: Instead of a Java or ActiveX scan engine, Vernier uses SMB credentials to
gain access to the client. The scan engine needs a user name and password with
rights to the local device in order to perform a thorough policy compliance
check. This requirement also means that Mac and UNIX hosts cannot be scanned to
the same level as Windows hosts. The end point compliance service, however, can
scan a host for open ports or other vulnerabilities that don't require local
access to the system. I like that I could scan a host during authentication and
also rescan the host on a recurring interval. This feature helps prevent users
from disabling their anti-virus software after logging in. If this should
happen, the EdgeWall would move the client into the appropriate policy until it
was back in compliance.
Reporting is one weak area in EdgeWall. Admins can send log
file information to a Syslog server or directly to a Network Intelligence
system. Raw log files are available on the appliance, and you can apply some
basic filters such as time period and severity, but graphical reports or user
statistics are not available.
All of the NAC appliances I reviewed need some improvement,
but Caymas and Vernier are clearly on the right track. When Nevis releases its
host assessment service, and if the company works on its UI, its solution will
be worth consideration. Lockdown is interesting because it doesn't require IT
to rip and replace a closetful of switches (a la Cisco); it works with what is
already in place. Its use of VLANs is unique but does cause us to worry about
scalability and flexibility. When deployed with some foresight, however, it
will work well.

Caymas 525 Identity-Driven Access Gateway
Caymas Systems, caymassystems.com
|
Very Good 8.1 |
 |
| criteria |
score |
weight |
| Manageability |
8 |
20% |
 |
| Policy Enforcement |
8 |
20% |
 |
| Scalability |
9 |
20% |
 |
| Reporting |
8 |
15% |
 |
| Setup |
8 |
15% |
 |
| Value |
7 |
10% |
 |
|
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Cost: $70,000 for 5,000 users with all features enabled
Bottom Line: The 525 Identity-Driven Access Gateway blurs the line between SSL VPN and NAC device. The policy enforcement is good and doesn’t
have any gaping holes, although it does have the feel of an SSL VPN appliance. End point assessment works well, with only
minor shortcomings. A decent array of reporting choices makes reporting very good.
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About our Reviews and Scoring Methodology
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Lockdown Networks Enforcer
Lockdown Networks, lockdownnetworks.com
|
Good 7.9 |
 |
| criteria |
score |
weight |
| Manageability |
7 |
20% |
 |
| Policy Enforcement |
8 |
20% |
 |
| Scalability |
8 |
20% |
 |
| Reporting |
9 |
15% |
 |
| Setup |
8 |
15% |
 |
| Value |
7 |
10% |
 |
|
 |
Cost: 1U model, $24,995; 2U model, $39,995; Commander, $9,995; Sentry, $1,495
Bottom Line: The Enforcer takes a different approach on providing network security. Instead of inspecting packets and applying policy,
it places traffic in a VLAN on a per-port basis on a managed Ethernet switch. Scalability for large enterprises is a question,
but for smaller networks, creating the VLAN-base security scheme shouldn’t be a problem. End point assessment is well rounded.
|
 |
About our Reviews and Scoring Methodology
|
|

Nevis LANenforcer
Nevis Networks, nevisnetworks.com
|
Good 7.2 |
 |
| criteria |
score |
weight |
| Manageability |
7 |
20% |
 |
| Policy Enforcement |
7 |
20% |
 |
| Scalability |
7 |
20% |
 |
| Reporting |
8 |
15% |
 |
| Setup |
7 |
15% |
 |
| Value |
7 |
10% |
 |
|
 |
Cost: LANenforcer, $19,995; LANsight management software, $2,000
Bottom Line: The LANenforcer is on the cusp of being a major player in the NAC space. Security policy is rich but difficult to manage,
largely because of a clumsy UI. Host assessment is missing in this release, but the forthcoming Client Integrity Checking
will fill this gap very well. Historical reporting is weak, but real-time monitoring is strong.
|
 |
About our Reviews and Scoring Methodology
|
|

Vernier Networks EdgeWall 7000
Vernier Networks, verniernetworks.com
|
Very Good 8.0 |
 |
| criteria |
score |
weight |
| Manageability |
8 |
20% |
 |
| Policy Enforcement |
8 |
20% |
 |
| Scalability |
8 |
20% |
 |
| Reporting |
7 |
15% |
 |
| Setup |
8 |
15% |
 |
| Value |
9 |
10% |
 |
|
 |
Cost: Price ranges from $9,000 to $31,000
Bottom Line: Vernier’s EdgeWall 7000 proved to be a good all-around solution to the NAC problem. Policy enforcement is rock steady, and
end point assessment is a good mix of compliance and vulnerability checking. On-device reporting is the one area where EdgeWall
could use some work, but it can communicate with Network Intelligence for off-box analysis.
|
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About our Reviews and Scoring Methodology
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