You must first configure a DHCP/BOOTP relay on the underlying hardware platform. As 
these packets are also probably passed through the Checkpoint (at least with IPSO 3.6 
and 3.8 and NG AI R54 and R55 this is the case) you should also introduce the DHCP 
packets to the firewall. Tests show that you need at least the following rules:

1)
src any
dst bcast4x255
service dhcp
action accept

2)
src dhcpserver
dst myotherdhcpnetwork
service dhcp, echo-request
action accept

3)
src myotherdhcpnetwork
dst fw
service dhcp
action accept

where the objects are as follows:

bcast4x255 - host node with IP 255.255.255.255
myotherdhcpnetwork - network for your workstations, other than the one, where DHCP 
server resides
dhcpserver - host node for your DHCP server
fw - your fw gateway

-tarmo-

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