Below shows you how to enable SNMPD and the Check Point MIB on a SPLAT device.
Please Note : Example based on R65 HFA50

Configure snmpd.conf

We add the following line "rocommunity     [community string]        [SNMP SERVER IP]" to the end of the /etc/snmp/snmpd.conf file. 

[Expert@r65scs]# vi /etc/snmp/snmpd.conf

Configure the SNMP daemon

[Expert@r65scs]# chkconfig --add snmpd
[Expert@r65scs]# chkconfig --level 345 snmpd on

[Expert@r65scs]# snmp service enable 161
[Expert@r65scs]# snmp user del public
[Expert@r65scs]# snmp user del private

Configure $FWDIR/conf/snmp.C

We add the read community string to the following file.

[Expert@r65scs]# vi $FWDIR/conf/snmp.C

Enable the Check Point MIB

[Expert@r65scs]# cpconfig

Test from SNMP Server

root@SNMP-SERVER:~$ snmpwalk -v 1 192.168.1.105 -c your_comm_string .1.3.6.1.4.1.2620.1.6.7.4.4.0
SNMPv2-SMI::enterprises.2620.1.6.7.4.4.0 = STRING: "255795200"

Additional References : http://www.cpug.org/forums/check-point-secureplatform-splat/9410-snmp-splat-any-howto.html