How does one configure the Connection Manager?

The CMAN.ORA file specify Connection Manager configuration details. Look at this sample CMAN.ORA file:

CMAN = (ADDRESS=(PROTOCOL=tcp)(HOST=141.145.83.4)(PORT=1610))

CMAN_ADMIN = (ADDRESS=(PROTOCOL=tcp)(HOST=141.145.83.4)(PORT=1650))

CMAN_RULES = (RULE_LIST =
        (RULE = (SRC=141.145.*.*)  # Wildcard is "x"
                (DST=141.145.*.*)
                (SRV=ed23)
                (ACT=ACC)
        ))

CMAN_PROFILE = (PARAMETER_LIST=
        (MAXIMUM_RELAYS=8)         # Default is normally too small
        (LOG_LEVEL=1)
        (TRACING=NO)
        (SHOW_TNS_INFO=YES)
        (RELAY_STATISTICS=NO)
)