DHCP in sessions list - DHCP off

[bhackbarth]

This is my 15th untangle box I have never seen this before. I have a strange entry in my sessions list that never ever goes away, even after a reboot. DHCP and DNS server are both turned off in untangle. Both NICs have static addresses. DHCP/DNS is served off of a windows server 2003 box.

proto bypas. client server client port server port
UDP true 0.0.0.0 255.255.255.255 68 67

Client interface is blank, the server interface is blank and the same numbers follow after server interface. Since the server port is 67 is this some kind of DHCP thing? What is this and how do I get it to go away?

[bhackbarth]

*Edit* Actually it was the silly admin of the server 2003 box including the UT gateway within the DHCP scope. I checked that after seeing yet another random UDP DHCP request lock up in the sessions list. Adjust the scope - problem gone.
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Nevermind - I guess it was an errant stubborn device trying to get DHCP from the Untangle and not giving up. On this network no DHCP server has ever existed at the same address as UT, but whatever. I temporarily enabled UT's DHCP server and saw a mac address / IP assignment pop into the Current DHCP entries list. 20 seconds later the UDP request was gone from Sessions (it had been there for 3 days plus a reboot). Then I simply turned off DHCP again. Hopefully it stays gone; Untangle should have blocked the request in the first place (packet filter). Maybe UT was booting when the request came in?