[sajal83]

Another way for "bonding" would be to use mptcp ( http://multipath-tcp.org ). You might need to patch and build openwrt yourself for it... The key difference is with mptcp each individual tcp connection uses both connections at the same time, rather than picking a lottery.

I blogged about my setup at http://www.sajalkayan.com/post/fun-with-mptcp.html

[pyvpx]

so many middleboxes out there, unfortunately. I've had success with both GRE and LISP tunnels in addition to utilizing MPTCP.