Display external IP mapping table entries on the host
Example:
esx-1> get transport-node external-ip
External IP Mapping Table
-----------------------------------------------------------------------------------------------------------------------------
External IP Internal IP Discovered Internal IP Seen VNI MAC Address Port ID
11.11.10.2 192.168.1.10 192.168.1.10 19285 00:50:56:11:22:03 1234567
11.11.10.3 192.168.1.11 192.168.1.11 19286 00:50:56:11:22:04 1234568
