User's Manual

Pismolabs 101 mini
- 22 - Copyright © 2009 Pepwave
Pismolabs 101 mini User Manual
Below the port forwarding table is an option called DMZ Host. If you Enable this function,
you can manually enter an IP address, which will be the IP address of the device that
expose to the Internet. The purpose of a DMZ is adding an additional layer of security to
your LAN, which may make all external users can only has access to the device in the DMZ,
rather than the whole of the network.
Tip
Below is a table showing some well-known ports, which is officially registered with IANA.
Port Number Description Protocol
7 Echo TCP, UDP
21 FTP TCP
23 TELNET TCP
25 SMTP TCP, UDP
53 DNS TCP, UDP
79 Finger TCP
80 HTTP TCP, UDP
110 POP3 TCP
119 NNTP TCP
161 SNMP TCP, UDP
162 SNMP Trap TCP, UDP