Hello, I want to use load balancing to allow simultaneous use of 2 relatively slow GPRS (ppp over GSM cellular phone) modems. I have a custom-compiled Ubuntu kernel 2.6.20.3 with Debian Etch, iptables v1.3.8. The modems are seen by the system as regular serial modems, ppp0 and ppp1. I also have a LAN (eth0). My interfaces, ppp0 and ppp1 have dynamically assigned *private* IP numbers. For example: ppp0: 10.60.32.71 ppp1: 10.40.89.42 My strategy for load balancing is to use conntrack to save the mark of the *first* packet, and mark all subsequent packets for that connection the same way. Two custom routing tables are set up, each set to push traffic to one of the 2 interfaces, according to the packet mark: TABLE INTERFACE MARK rt_link1 ppp0 1 rt_link2 ppp1 2 My efforts to do load balancing between the 2 interfaces have not been successful. Before I go into details, a major question: Will load balancing work without public, routable IP numbers for my outward-facing interfaces? -- Lloyd -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
