REM (c) Microsoft Corporation 1997-2003

REM Packet Filters for Server Hardening
REM
REM Name:        DHCPPacketFilter.CMD
REM Version:     1.0

REM This CMD file provides the proper NETSH syntax for creating an IPSec Policy 
REM that blocks all network traffic to a DHCP Server except for what is 
REM explicitly allowed as described in the Windows 2003 Server Solution Guide.  
REM Please read the entire guide before using this CMD file.

REM Revision History
REM 0000	-	Original	February 05, 2003
REM 0001	-			April 05, 2003

:IPSec Policy Definition
netsh ipsec static add policy name="Packet Filters - DHCP" description="Server Hardening Policy" assign=no

:IPSec Filter List Definitions
netsh ipsec static add filterlist name="DHCP Server" description="Server Hardening"
netsh ipsec static add filterlist name="Domain Member" description="Server Hardening"
netsh ipsec static add filterlist name="Terminal Server" description="Server Hardening"
netsh ipsec static add filterlist name="Monitoring" description="Server Hardening"
netsh ipsec static add filterlist name="ALL Inbound Traffic" description="Server Hardening"

:IPSec Filter Action Definitions
netsh ipsec static add filteraction name=SecPermit description="Allows Traffic to Pass" action=permit
netsh ipsec static add filteraction name=Block description="Blocks Traffic" action=block

:IPSec Filter Definitions
netsh ipsec static add filter filterlist="DHCP Server" srcaddr=any dstaddr=me description="DHCP Server Traffic" protocol=UDP srcport=68 dstport=67
netsh ipsec static add filter filterlist="Terminal Server" srcaddr=any dstaddr=me description="Terminal Server Traffic" protocol=TCP srcport=0 dstport=3389

REM NOTE: IP Address or server names of Domain Controllers must be hardcoded into the dstaddr of the Domain Member filters defined below
netsh ipsec static add filter filterlist="Domain Member" srcaddr=me dstaddr=<Insert DC #1> description="Traffic to Domain Controller" protocol=any srcport=0 dstport=0
netsh ipsec static add filter filterlist="Domain Member" srcaddr=me dstaddr=<Insert DC #2> description="Traffic to Domain Controller" protocol=any srcport=0 dstport=0

REM NOTE: IP Address or server name of Monitoring server must be hardcoded into the dstaddr of Monitoring filter defined below
netsh ipsec static add filter filterlist="Monitoring" srcaddr=me dstaddr=<Insert MOM Server> description="Monitoring Traffic" protocol=any srcport=0 dstport=0

netsh ipsec static add filter filterlist="ALL Inbound Traffic" srcaddr=any dstaddr=me description="ALL Inbound Traffic" protocol=any srcport=0 dstport=0

:IPSec Rule Definitions
netsh ipsec static add rule name="DHCP Server Rule" policy="Packet Filters - DHCP" filterlist="DHCP Server" kerberos=yes filteraction=SecPermit
netsh ipsec static add rule name="Terminal Server Rule" policy="Packet Filters - DHCP" filterlist="Terminal Server" kerberos=yes filteraction=SecPermit
netsh ipsec static add rule name="Domain Member Rule" policy="Packet Filters - DHCP" filterlist="Domain Member" kerberos=yes filteraction=SecPermit
netsh ipsec static add rule name="Monitoring Rule" policy="Packet Filters - DHCP" filterlist="Monitoring" kerberos=yes filteraction=SecPermit
netsh ipsec static add rule name="ALL Inbound Traffic Rule" policy="Packet Filters - DHCP" filterlist="ALL Inbound Traffic" kerberos=yes filteraction=Block