Title: Inbound, outbound, or eitherbound?
Inbound checks the packet when it gets to the firewall
Outbound checks it after it has been routed from one NIC to the other before sending it out
 
so a packet from the INternet would be checked when it gets to the external IF of the firewall.  A packet from the local LAN would be checked once it hit the internal IF of the firewall.
 
Eitherbound checks the packet when it gets to both NIC's, so a packet from the Internal LAN to the Net would be checked when it hit the internal IF, then routed to the external IF, checked again, then (if accept or encrypt) is sent on it's way.
 
I use Inbound always.  Eitherbound is double checking, double the performance hit.
 

Scott J. Friedman
Senior Systems Administrator
Microsoft Certified Systems Engineer
Email  : [EMAIL PROTECTED]
Phone : 313-253-3656
Cell Phone : 313-220-6916
AOL IM : SJF403

-----Original Message-----
From: Padden, Greg [mailto:[EMAIL PROTECTED]]
Sent: Monday, August 14, 2000 12:17 PM
To: '[EMAIL PROTECTED]'
Subject: [FW1] Inbound, outbound, or eitherbound?

So what are other people using for this Property for applying the ruleset to the firewall's interfaces?

I was using Eitherbound, but was told that changing this to Inbound would gain me some performance.

Does anybody know any drawback to changing to Inbound?


Network Engineer, MSCE, CCNA
Information and Telecommunications Services
King County
700 5th Ave, Suite 1800
Seattle, WA 98104
(206)263-4804 Fax (206)263-4834
<<Padden, Greg.vcf>>

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