Hi,
How to enable the SNMP in Checkpoint and nokia firewalls.
How to enable the Netflow in Checkpoint and nokia firewalls.
I don't know about netflow, but checkpoint's SNMP is configured on the nokia IPSO, and you'll have to allow snmp polling to the checkpoint cluster IP as a firewall rule - two steps.
The checkpoint OIDs provided in the universal device poller work fine.