I've been recently trying to improve bandwidth to a remote site with mixed results.
At my head office I have a full duplex 8Mbps uncontented Internet connection and at the remote site I've got access to multiple ADSL-based Internet connections.
I've initially tried connecting a pair of basic DSL routers into two Fastethernet interfaces on the 2600 at the remote site and then established two GRE tunnels back to a 3745 at the head office. I've then established IPSEC for the GRE traffic and configured identical routes at both ends. While I've managed to get traffic passing over both DSL links, the performance has not been especially impressive.
I'm wondering whether the basic design is optimal and whether anyone on the list has taken different approaches.
One additional complication is that the branch site is not in a fixed location - it basically moves to several sites in a few countries and so I need an option that's ISP agnostic...
Cheers in advance, Chris