On Nov 29, 2011, at 7:32 PM, Lee Brown wrote:

> I currently have a multi-ISP config and it's working great.  Host is a 
> CentOS5.4 machine. Shorewall 4.4.19.1
> 
> I've been asked to add a new ISP which has a 1GB download limit during 
> certain hours.  When the cap is hit my users want to switch traffic to 
> another, shared ISP.  
> 
> I was planning on just issuing some iptables commands to tag the traffic for 
> ISP#1 during the on time and ISP#2 during the off time, the same way an entry 
> in tcrules would.
> 
> The question is really how does connection tracking enter this mix and how 
> can it be avoided?

What exactly is your concern with connection tracking? Can't you simply disable 
the interface to ISP#1 when the limit is reached?

-Tom

Tom Eastep        \ When I die, I want to go like my Grandfather who
Shoreline,         \ died peacefully in his sleep. Not screaming like
Washington, USA     \ all of the passengers in his car
http://shorewall.net \________________________________________________



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