IPFW - Keep State

Grant Peel gpeel at thenetnow.com
Fri Aug 31 06:39:44 PDT 2007

I don't use NAT, so  is there any other compelling reasons? Speed etc?


  ----- Original Message ----- 
  From: Mel 
  To: freebsd-questions at freebsd.org 
  Sent: Friday, August 31, 2007 9:21 AM
  Subject: Re: IPFW - Keep State

  On Friday 31 August 2007 14:34:51 Grant Peel wrote:

  > In a nutsheel, is it really necessary, or is thier a really compelling
  > reason to use keep-state for a normal web - email server?
  > I sometimes see "Too many dynamic rules" and can see a correlation between
  > customer complaints and these log entries.
  > My server all have about 200 rules, most of them counters for bandwidth
  > accounting.

  It is necessary for NAT, since it doesn't know what to do with replies from 
  webservers otherwise (internet:80 => $ext_addr:high_port = what?)

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