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Network Security Focus-IDS
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Re: RE: IPS and Trunking

Subject: Re: RE: IPS and Trunking
Date: 15 Feb 2007 18:52:00 -0000
Yes I agree that most of the product supports VLAN dot 1Q but important thing 
is if they can do so in IPS mode specially when the IPS is configured in Layer 
2 mode or transparent mode. 
I know of Juniper ISG platform not supporting VLAN in layer 2 or transparent 
mode. VLAN and NAT supported only on Layer 3 mode of juniper ISG platform. 

However other products like Fortigate, Proventia, iPolicy Intrusion Prevention 
firewall and many other products do support VLAN (dot 1Q) with IPS in Layer 2 .

Good thing about iPolicy Intrusion prevention firewall is that it supports NAT 
as well in Layer2 while Juniper cant.

U want to be absolutely sure of all the details when u are talking to any 
vendor regarding these kind of features.

Regards,
Vijay Upadhyaya

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