Hi, I am using Shorewall 4.4.26.1 on Ubuntu 12.04.3 My multi ISP configuration is running fine with 2 ppp interfaces. Now I need to route a specific application through only one of these ppp interfaces. I follow the instructions in http://shorewall.net/MultiISP.html#Applications So I add the following 2 lines to my tcrules file: 2:P 192.168.254.0/24 0.0.0.0/0 udp 5060 2 $FW 0.0.0.0/0 udp 5060 But the result does not change. The packets for this app are still being loadbalanced. My providers file is like: vdsl 1 1 - ppp1 - track,balance=4 adsl 2 2 - ppp0 - track,balance=1 What am I missing ? Is there another step I should take ? Thanks. ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/13534_NeoTech