User Guide
53
Packet Filter Policies
SMTP
The SMTP packet filter policy allows SMTP traffic (email) without using the SMTP proxy.
Characteristics
•
Internet Protocol(s): TCP
•
Port Number(s): 25
SNMP
Simple Network Management Protocol (SNMP) is used to collect information about and to configure
remote computers. This can be dangerous. Many Internet attacks use SNMP. Because SNMP can cause
changes in a network if enabled, carefully review alternatives and record logs for all connections.
Characteristics
•
Internet Protocol(s): UDP
•
Port Number(s): 161
SNMP-Trap
Simple Network Management Protocol (SNMP) traps are notification messages that an SNMP agent (for
example, a router) sends to a network management station. These messages usually report an
important event that must be examined.
Characteristics
•
Internet Protocol(s): UDP
•
Port Number(s):162
SQL*Net
Oracle uses one port for its SQL*Net software. By default, this port is 1526/TCP or port 1521/TCP. Or, edit
the tnsnames.ora file to change the port. To allow SQL*Net through the Firebox, set up a policy for the
port that your SQL*Net server uses, with a protocol of
TCP
, and a client port of
ignore
. Then set up
incoming access from the allowed external hosts to the SQL*Net server.
Characteristics
•
Internet Protocol(s): TCP
•
Port Number(s): 1521, 1526
SQL-Server
The SQL-Server policy is used to give access to SYBASE Central and SQL Advantage software.
Characteristics
•
Internet Protocol(s): TCP
•
Port Number(s): 10000
