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SOYO AVRO3002 Ethernet Router Manual
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this setting. To delete an entry in the table, click “Clean” button to clear
all fields in the entry.
Some of the popular applications and protocol/port numbers mapping
are defined below:
Application Protocol Port
Number
Telnet TCP
23
FTP TCP
21
SMTP TCP
25
POP3 TCP
110
H.323 TCP
1720
SNMP UCP
161
SNMP Trap UDP
162
HTTP TCP
80
PPTP TCP
1723
PC Anywhere TCP
5631
PC Anywhere UDP
5632
5.4.3. Special Applications
Some applications require multiple connections, such as Internet
gaming, video conferencing, Internet telephony and others. These
applications cannot work when Network Address Translation (NAT) is