NETWORK WORLD NEWSLETTER: JOANIE WEXLER ON WIRELESS IN THE 
ENTERPRISE
09/06/04
Today's focus:  IPolicy blocks worms, viruses across 802.11 nets

Dear [EMAIL PROTECTED],

In this issue:

* IPolicy's LAN-side firewalls can thwart 802.11-borne 
��infections
* Links related to Wireless in the Enterprise
* Featured reader resource
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This newsletter is sponsored by Intel 
A NW Special Report: 
The State of Wireless LANs 
 
Wireless has becomes more integrated and accepted as a way of 
doing business. However, several questions are raised about its 
current state; what are the trends and best practices for 
deploying wireless LANs?  What are the leading applications? 
What are the tradeoffs in current wireless standards?  What are 
the best options for wireless infrastructures and security 
mechanisms?  Click here to download your copy, no registration 
required http://www.fattail.com/redir/redirect.asp?CID=79121
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Today's focus:  IPolicy blocks worms, viruses across 802.11 nets

By Joanie Wexler

Much progress has been made to protect the traditional "WAN 
edge" from Internet-bred worms and viruses that laptops and 
other mobile devices might pick up and pass to a corporate 
network via remote connections. But what about when infected 
portable devices link directly to the corporate LAN?

Consider the case where users have had their Internet-attached 
laptops with them on the road, then bring them into the office 
and connect to the corporate network via an 802.11-based WLAN or 
plug directly into an Ethernet port. In such cases, they will 
bypass the traditional firewall, intrusion detection system, 
anti-virus check and so forth.

This can be an unfortunate situation. Once infected, internal 
computers will generate increasing volumes of "bad" traffic, 
possibly creating denial-of-service attacks.

WLAN switch vendors such as Aruba Wireless Networks have built 
stateful firewalls into their products, which helps. These tend 
to support access control lists only, however, filtering on IP 
source address or user identity, but not checking for malicious 
signatures.

Intrusion prevention firewall maker iPolicy Networks bundles not 
only access control but also a number of other security 
capabilities and supports up to 4G bit/sec LAN connections in 
its equipment. So internal LAN traffic can be secured in 
addition to traditional WAN-edge perimeter traffic by an iPolicy 
device before being bounced through the LAN switch and back out 
to other LAN devices, explains Antoine Gaessler, iPolicy vice 
president of marketing.

In other words, WLAN client traffic could be put through the 
various security paces that your enterprise runs in an iPolicy 
firewall - intrusion detection/prevention, anti-virus updates, 
spam and URL filters, and access control lists - before being 
granted access to LAN resources.

The company, which has a reference-sell relationship with WLAN 
switch-maker Meru Networks, last week added a bunch of new 
models to its product suite, mixing and matching 
price/performance to the size and throughput requirements of the 
enterprise site at hand. Considerations are aggregate 
throughput, number of concurrent sessions and number of new 
sessions-per-second supported. Lower-end products (the iPolicy 
2000 series), with about 100M bit/sec throughput, start at about 
$5,000; higher-end, multi-gigabit-speed products (the current 
iPolicy 6000 series) range in price from $50,000 to $200,000.

IPolicy touts its single-pass inspection engine, which allows 
its devices to inspect a given packet just once against multiple 
rules. The company says this improves performance compared with 
competing products that inspect packets multiple times when 
running multiple security applications.

RELATED EDITORIAL LINKS

Behind the perimeter
Network World, 08/30/04
http://www.nwfusion.com/research/2004/0830appsecperspective.html

Security overlay architecture holds promise
Network World Wide Area Networking Newsletter, 05/06/04
http://www.nwfusion.com/newsletters/frame/2004/0503wan2.html

Will deep-inspection firewalls suffice as sole security guard?
Network World Wide Area Networking Newsletter, 05/11/04
http://www.nwfusion.com/newsletters/frame/2004/0510wan1.html

Wi-Fi plays defense
Computerworld, 08/23/04
http://www.nwfusion.com/nlwir559

Sorting out the 802.11i/RADIUS security confusion
Network World Wireless in the Enterprise Newsletter, 08/11/04
http://www.nwfusion.com/nlwir560
_______________________________________________________________
To contact: Joanie Wexler

Joanie Wexler is an independent networking technology 
writer/editor in California's Silicon Valley who has spent most 
of her career analyzing trends and news in the computer 
networking industry. She welcomes your comments on the articles 
published in this newsletter, as well as your ideas for future 
article topics. Reach her at <mailto:[EMAIL PROTECTED]>.
_______________________________________________________________
This newsletter is sponsored by Intel 
A NW Special Report: 
The State of Wireless LANs 
 
Wireless has becomes more integrated and accepted as a way of 
doing business. However, several questions are raised about its 
current state; what are the trends and best practices for 
deploying wireless LANs?  What are the leading applications? 
What are the tradeoffs in current wireless standards?  What are 
the best options for wireless infrastructures and security 
mechanisms?  Click here to download your copy, no registration 
required http://www.fattail.com/redir/redirect.asp?CID=79121
_______________________________________________________________
ARCHIVE LINKS

Archive of the Wireless newsletter:
http://www.nwfusion.com/newsletters/wireless/index.html

Wireless research center
Latest wireless news, analysis and resource links
http://www.nwfusion.com/topics/wireless.html
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