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Chapter 3 • The User Interface
1031484-0001 Revision 2
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The Help Menu
The Help Menu contains information about receive and transmit
modem status messages, the firewall, installation,
troubleshooting, and other topics. Review it to become familiar
with the User Interface and with the DW4020. Access it by
clicking on
Help.
Note: Print the answer to the entry in the User Interface
Troubleshooting page, “I am unable to access the DW4020 Web
interface. Ping doesn’t work also.” The information on this page
will help you if you cannot access the User Interface.
Table 8: Port numbers and protocols
Port Number Internet Application or Protocol
7Echo
21 FTP control port
23 Telnet
25 Simple Mail Transfer Protocol (SMTP)
53 Domain Name Server (DNS)
70 Gopher
79 Finger
80 Hyper Text Transfer Protocol (HTTP)
107 Remote Telnet Service (RTELNET)
110 Post Office Protocol - Version 3 (POP3)
119 Network News Transfer Protocol (NNTP)
6667 Internet Relay Chat (IRC)
Figure 42: Help Menu