imux multiple DSL lines - IPSEC

Archived from groups: comp.dcom.vpn (More info?)

My company uses two adsl lines bonded together via an IMUX (inverted
multiplixer) router. Basically every packet is broken in two and sent
simultaneously down the two lines, where the packet pieces are
reassembled.

We were told that IPSEC can not handle this and that the imux router
will route ipsec packets through only one of the DSL lines.

I thought that NAT traversal encapsalted each ipsec packet in a udp
packet and therefore that udp packet could be sent in across NATs and
PATs, etc.

So, should NAT traversal enable the encapsalted IPSEC traffic to be
broken apart and reassembled?
Has anyone done this?

Thanks for any help.