Tried to use Wireshark, the one and only network protocol analizing tool on OSX Maverick?
It needs to have X11, which is not part of the basic operating system.
To download X11 / XQuartz:
Reboot after install
Start X11 Quartz:
Quartz in the program->Utilities Folder
Have a break (it will take quite some time the first time you start it)