Created attachment 2514 [details] Patch making empty bind_address via mux behave as per documentation As described in [1], configuring remote port forwarding via multiplexed connection works differently (violating documentation) than when the same command is given on non-multiplexed ssh client. The attached patch fixes the issue. [1]: http://lists.mindrot.org/pipermail/openssh-unix-dev/2014-September/032969.html
Patch applied. This will be in openssh-6.8 - thanks!
openssh-6.8 is released