On Thu, 2010-03-18 at 14:07 -0600, S P Arif Sahari Wibowo wrote: > Hi! > > I am wondering whether it is possible to choose TCP/IP routing > for a specific instance of an application - chosen on user-level > when the application is started? > > More specifically I have a workstation with 2 Internet > connections (different devices), and I would like to have some > applications connecting to Internet using one connection while > other applications connecting to Internet using the other > connection, where I choose which application instance use which > connection. > > I control the whole workstation (root, hardware) so I can do > whatever on the machine, but not the router / connection. > > Any idea? I have not done what you are requesting. I did an Internet search and came to the following conclusions: 1) You can mark packets using iptables. The marking can be based on type of traffic, ex: html, smtp, etc. 2) You then use ip routing to do what is called policy routing. You have multiple routing tables. The routing table to be used will be selected based on the marking. I will suggest you look at the following URL and see if it helps you. This URL is not for the faint of heart: http://linux-ip.net/html/adv-multi-internet.html The key overview to understand this URL is the summary near the top: Quoting from the URL, "...Before beginning let's outline the process we are going to follow. * Copy the main routing table to another routing table and set the alternate default route [38]. * Use iptables/ipchains to mark traffic with fwmark. * Add a rule to the routing policy database. * Test!" I have not personally done this. I can't do much more than give you the URL reference. You will need to determine if this as a possible solution for you. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
