[ale] A DHCP server on a firewall

[Kenn]

Hi there,
 
    Some of you may have read my 
post about iptables. Well I have moved past those hurdles. Actually iptables is 
really nice. I am pleased. My question however is this.
 
    I have set up a firewall and 
tested it. I works well now I am toying with the idea of setting up DHCP. Is 
this safe I have never used it beofre and it seems like a good idea at first. 
Users just plug in and there you go! All set. But what are the security 
risks?
 
Thank you
Ken