Terminal prompt starts with client IP Address

Question

I named my macbook pro as "pine" and add the following line to the .bash_profile file
export PS1='\h:\w> '
Normally, it displays "pine:~>", but after I connect my laptop to the wireless network via a VPN, the prompt becomes
client-77-104-71-149:~>
Why does the terminal prompt look so weird? How to change it back to normal?

Answer 1

The issue occurs on a daily basis for about 100 laptops that are normally docked to a wired connection (subnet 10.2.3.x), but when undocked the laptop transitions to a wireless connection (10.2.5.x).  When initially docked, a laptop connected to
a wired connection will properly negotiate with DHCP all four parts of the handshake in the classic way and get an IP address (10.2.3.101 for example). 
The problem begins about 5 - 10 minutes later when the same laptop makes a DHCPDiscover with a source address of 10.2.3.101 and destination address of 255.255.255.255.  This continues every 10 minutes or so until the laptop is undocked or taken off
the wire.  It only acquires on additional address once, but if we delete it off the DHCP server, then it reacquires the bad, additional lease. 
When the laptop reach 50% of its lease life or later (undocked and returned the next day), it make a DHCPRequest for 10.2.3.101 from source address 0.0.0.0 to destination address 255.255.255.255.  It then reacquires the lease like normal. 
Yes, the docking and undocking will move them between subnets by changing the interface.  If we disable the wireless adapters while the laptop is docked, it stops sending DHCPDiscover packets from source address 10.2.3.101 to destination address 255.255.255.255. 
When we reenable the wireless adapters, then the bad behavior starts up again.  We see this in Wireshark packet captures and the DHCP client logging.  None of the events or strings have from the logs have either given us an explantion or solution. 
Thanks again,
Mark