Hi, I'm using: iptables 1.3.5 (FC5 distro with ROUTE target enabled) kernel 2.6.19 pom-ng 20061129 My box is a dual xeon machine (SMP kernel). I'm using 2 uplinks to connect my network to internet and its working fine, but some disconnection isues using messenger (amsn, gaim, m$msn, msn-messenger, etc...) needs I route all -p tcp --dport msnp over one uplink. To solve this problem, I want to try -j ROUTE target, to route all msnp traffic only for one uplink (I don't know if this will solve the problem, but I want to try). For this purpose, I wrote: iptables -t mangle -A PREROUTING -p tcp --dport msnp -j ROUTE --gw <uplink> --continue The error is: iptables: Unknown error 4294967295 In dmesg: ipt_ROUTE: targinfosize 0 != 40 Any help about this? Thanks