Capturing DHCP events

Hello,

I’m looking into capturing DHCP events with Bro. I am hoping I am just overlooking a bro script that already handles the collection of DHCP events. The only one I have been able to find so far is at http://svn.icir.org/bro/trunk/bro/policy/dhcp.bro, but it does not appear to work with Bro 2.1. Can anyone point me in a better direction?