Thanks for your information darin. i was even new to the forums.
i have 3 nic 's in my debian box, two for the two internet links one for the local network.
here is the link for julina loadbalancing script
i applied the neccessary changed to the script and run the script in my machine. Behind this linux box i would like to use internet for VOIP devices , VPN clinets and RDP seeion for remote terminal servers.
The problem i am facing is when ever there is a fluctualtion in one link the RDP sessions are getting disconneted. and when the link fails, the switch over is not taking place with in 60 seconds. it is at times taking more than 3 to 6 mins.
Then in order to apply julian patches for dead gateway detection and for multiple path routing , i downloaded te kernl source 18.104.22.168, recompiled it and after that i applied the julian patches for this kernel. but still i am facing the same problem.
here is the kernel version i am using
Linux debian 22.214.171.124 #1 PREEMPT Thu Dec 15 17:00:31 IST 2005 i686 GNU/Linux