[ubuntu] Ubuntu Server 12.04 VM (VirtualBox): Can't Install DHCP server

Hello all,

I'm new to Ubuntu and Linux in general, so I'm having a bit of trouble installing the DHCP server on my Ubuntu Server 12.04 VM using VirtualBox.

I typed in the command: sudo apt-get install dhcp3-server . It wasn't installed, and I received the message that:

The following packages have unmet dependencies: dhcp3-server : Depends : isc-dhcp-server but it is not going to be installed E: Unable to correct problems, you have held broken packages.

So, I typed in: sudo apt-get install isc-dhcp-server . I received a similar message stating:

The following packages have unmet dependencies: isc-dhcp-server : Depends : libcap2 (>= 2.10) but it is not installable. (Same 'E' message as above).

So, being new to Linux, I am now at an impasse. I would also like to state that this is for a college class as a lab assignment. My first step was to install the DHCP server, but I haven't been able to.

Any help would be greatly appreciated :)

Thanks in advance!