DSL Modem --> eth0 Linux bridge/firewall/shaper eth1 --> LAN
I need more bandwidth though (uplink), since I'm connected around 10 hours per day from work to home (long story short, cant install any software of my own, can't read my own e-mail etc, so I'm connecting through remote desktop home, to be able to do that), while I'm also hosting a webserver and a few other things at home which sometimes bogs down the connection so much that remote desktop is unusable. So I've ordered a second DSL line, this one with only a dynamic IP number, but other than that, the same speed etc (although it will be PPPoE with the associated overhead).
Now, what I would like to do is connect the second DSL line to the Linux bridge/firewall, and automatically load balance a couple of things over line 2. First of all, I'd like to somehow double my uplink. Not knowing if this is entirely possible, but I figure that in theory it works, I could just send 50% of the outgoing packets on line 1, 50% on the other, and all incoming packets would be coming in on line 1 (since the replies would be coming to the source address, the public IP that is on line 1). If my ISP is filtering packets with an incorrect source address or something I'm in trouble, but if they don't, it should work right? If I can't get this to work, I'm happy with just connecting to the dynamic IP whenever I need to RDP/VNC into my machine at home, so it's not critical, but nice, to get the double uplink speed.
The second thing I'd like to do is load balance HTTP connections (outgoing) over both links (and possibly other things like BitTorrent etc), so I'd get around 10mbit for downloads. I figure this can be done by NATing line 2 with my public IP numbers on the inside, and somehow just select a different gateway for connections (packets?) on a roundrobin basis or something like that (or even better, by putting the new connections on the line with the least traffic at the moment). It is important that I can do this for only HTTP (and select other applications). I figure a workaround for this, if it isn't easily implementable, would be to do transparent WWW proxying with Squid or something similar, and somehow send half the connections on one interface and half on the other... in case the kernel can't do it. I realize, of course, that to get 10mbit downloads, I'll need to have multiple connections open to the server I download from (unless I'm missing something).
I'm new at this, and don't really know where to start. What complicates it even more for me is the fact that my box will be BOTH a bridge and router in this scenario.
Any pointers etc will be very much appreciated.
/dml
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