On April 2nd, maps2004 started logging a large amount of discarded (by iptables) packets from maps2001 and wdqs2001 towards maps2004:5432
It's not urgent, but:
1/ It might be the sign of a miss-configuration or larger issue
2/ It floods the logs with ~2000 messages/h :)
Please investigate it and either stop/re-configure what is sending the packets being dropped, or update Ferm to permit them.