For a number of technical reasons, it is not possible to use two residential internet connections to "accelerate" the path between the same two computers. At least when using TCP, a persistent connection has to originate from an IP address. Each of the dsl modems will be provisioning unique IP addresses. Thus one connection can only originate from one of the two dsl modems at a time and only use one modem's worth of bandwidth. With cooperation of the ISP, you could channel bond, but that cooperation will cost you $1025/mo and require a special router at both ends of the connection. The best you can hope for is to "balance" logical IP traffic over the two outbound interfaces, such that a multitude of LAN clients can split their bandwidth half and half between either internet connection. This itself is very difficult do do and would require some iptables/route table kung-foo the likes of which I have never heard of in any pre-existing firewall distro, but still wouldn't help with the problem you describe. There are some "network appliances" that offer "dual WAN" but read the fine print. They might just be for failover. You'd want load balancing.
On Tue, May 6, 2008 at 9:37 PM, Greg Brooks [email protected] wrote:
Anyone successfully used link aggregation to combine two ADSL lines for greater outbound bandwidth?
Because it's asymmetrical bandwidth, I'm fine for inbound speed. but I need to regularly move large files to FTP, and it's becoming an issue.
So, if I'm moving data from a single user (me) to a single point (an FTP site), does link aggregation double my bandwidth? I understand how it would work in multi-users-to-the-net environments, but can't quite get how (or if) it would work in this scenario.
I really don't want to pay the $1025/mo for a T1 line to the house, but it's my only other option.
Any help much appreciated.
Thanks, Greg
Kclug mailing list [email protected] http://kclug.org/mailman/listinfo/kclug