rpc reports in tiger

[michael <cs@networkingnewsletter.org.uk>]

'tiger' regularly gives me reports of the form:

# Checking listening processes
OLD: --WARN-- [lin002i] The process `rpc.statd' is listening on socket
1019 (UDP) on every interface.
OLD: --WARN-- [lin002i] The process `rpc.statd' is listening on socket
1022 (UDP) on every interface.
OLD: --WARN-- [lin002i] The process `rpc.statd' is listening on socket
601 (TCP) on every interface.
NEW: --WARN-- [lin002i] The process `rpc.statd' is listening on socket
1018 (UDP) on every interface.
NEW: --WARN-- [lin002i] The process `rpc.statd' is listening on socket
1021 (UDP) on every interface.
NEW: --WARN-- [lin002i] The process `rpc.statd' is listening on socket
600 (TCP) on every interface.

Can somebody point me to what this all means?

THanks, M