//////Thank you so much for your quick reply,maybe
I could do that with a script that reconfigures
and restart shorewall ?
For example something like that
Script in cron at 00 *
1) Detect ISP1 response time is more bad than ISP2
-> The problem is how detect response time
2) Change a parameter in shorewall conf, maybe
/balance=X ?/
3) And finally Restart shorewall
I think i'm not alone with ISP unstable, just
wondering how others get around this problem
Fred
Le 25/03/2011 17:10, Tom Eastep a écrit :
On 3/25/11 4:49 AM, Stealth wrote:
Hi all,
I'm hoping to build a gateway with multiple ISP
(in my case I have 4 ISPs) with failover capability.
Here's what I hope to accomplish with shorewall,
if it's possible:
1. Switch traffic on other interfacesif an ISP
fails, not only when the box hang but also if
Internet connection doesn't response
Using static routing, you can't switch existing traffic from one ISP to
another. Think about it; how is return traffic going to get back to your
network if the route to your system isn't available? That only has a
chance of working if output traffic is broken but return traffic
continues to flow.
2. More complicate for me. The adsl box are never
synchronised with same capacity after reboot. Do
you know a good system for traffic repartition
which take cares of box response times, maybe a
script but how ?
Again -- you can't switch live connections from one ISP to another. You
might get away with switching output traffic if the ISP being switched
to does not do ingress filtering but the return traffic is still going
to go through the ISP over which the connection was initiated.
-Tom
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