Packet Filter Services
Reference Guide
51
- 5632/UDP
- 5631/TCP
- 65301/TCP
•
Client Port: ignore (all cases)
ping
ping can be used to determine whether a host can be reached and is
operable and on the network). To intercept DOS-based or Windows-based
traceroute packets, configure the ping service.
Like traceroute, it is generally a bad idea to allow ping into a network;
however, outgoing ping is useful for troubleshooting.
Characteristics
•
Protocol: ICMP
•
Server Port(s): Not Applicable
•
Client Port(s): Not Applicable
POP2 and POP3
POP2 and POP3 (Post Office Protocol) are mail transport protocols,
generally used to retrieve individual users’ mailboxes from a POP server.
Characteristics
•
Protocol: TCP
•
Server Port(s): 109 (POP2), and 110 (POP3)
•
Client Port(s): greater than 1023
Common Scenarios
Scenario 1
Description
A POP server on the Trusted interface, generally running on the
same machine as the SMTP server.
Содержание Firebox X1000
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