Linux - NetworkingThis forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.
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There are a couple ways to do it. If the interfaces are relatively equal in terms of bandwidth, I would recommend using the teql0 qdisc like so:
tc qdisc add dev eth0 root teql0
tc qdisc add dev eth1 root teql0
Then, configure your [public] interfaces. Give teql0 a dummy IP. You don't necessarily have to do the first two commands if your IP addresses [and routes] are already assigned, such as by your PPP client for DSL or DHCP client for cable.
ip addr add dev eth0 126.96.36.199/24
ip addr add dev eth1 188.8.131.52/24
ip addr add dev teql0 10.1.1.1
Finally, set the default route via the teql interface.
ip route add default via 10.1.1.1 dev teql0
Finally, you'll need to turn off an option that controls whether Linux will watch the return path of a packet. Substitute your interface names into these commands:
If you're more interested in doing it with routing tables only, you'll need to have multipath routing enabled in the kernel. If you're using a stock kernel from your distro, you most likely have it. Bring up both interfaces using whatever commands you may use to do so. Once that is done, run:
ip route add default equalize
I personally have not tested it this way, but I have read that this is what works. Feel free to give it a try and let me know how it turns out.