Forwarding Ports
You can use the forward command to set up arbitrary port forwarding — forwarding of requests on a specific host port to a different port on an emulator/device instance. Here's how you would set up forwarding of host port 6100 to emulator/device port 7100:
adb forward tcp:6100 tcp:7100
You can also use adb to set up forwarding to named abstract UNIX domain sockets, as illustrated here:
adb forward tcp:6100 local:logd
