RE: Multiple ISP's and traffic shaping
First I think you need one linux server for every LAN -
- so you wouldn't need some kind of source routing (I only knew it from
Second you have to let your routing table to realize a link has gone down.
For that you have three basic possibilities:
- you have a routing protocol which would realize a down interface
- you're running a routing protocol with every isp
- you have a kind of cron script pinging and making some 'route add/del ...'
I think for the second one you wouldn't find a willing ISP. ;)
The last one would be in your hands - so I would prefer it.
It's not fast, but possible!
From: mslucas [mailto:firstname.lastname@example.org]
Sent: Thursday, May 22, 2003 3:48 PM
Subject: Multiple ISP's and traffic shaping
Traffic from my private LAN must go to ISP0, and is allowed to go to ISP1
only if ISP0 is down (bandwidth must be limited)
Traffic from my Office LAN must go to ISP1, and is allowed to go to ISP0 if
ISP1 is down or if there is more traffic than ISP1 can accept.
Traffic from my DMZ must go to ISP1, and is allowed to go to ISP0 only if
ISP1 is down..
Traffic from my private LAN is not allowed to go to my Office LAN but
traffic from Office to private is allowed.