Access Control-Admin; Access Control-Services - D-Link DSL-2320B - 24 Mbps DSL Modem User Manual

Section 9 - Tools
There are three usernames and passwords (admin, support, and user) that can be
used to control your modem. The passwords for these usernames can be changed
on the Admin screen. Select the Username, enter the Old Password, enter a New
Password, and then confirm the new password. When you are ready, click Apply
at the bottom of the page.
From this page you can enable/disable certain services from passing through your modem. Services that can be
enabled/disabled on the LAN/WAN are FTP, HTTP, ICMP, SNMP, Telnet, and TFTP.
FTP:
(File Transfer Protocol) Used for file transfer.
HTTP: (Hyper Text Transfer Protocol) A communications protocol that enables Web
browsing.
ICMP: (Internet Control Message Protocol) supports packets containing error, control,
and informational messages.
SNMP: (Simple Network Management Protocol) A protocol used for network management
and monitoring network devices.
Telnet: A standard Internet protocol for accessing remote systems.
TFTP: (Trivial File Transfer Protocol) A very simple form of the File Transfer Protocol
(FTP).
D-Link DSL-30B ADSL+ Ethernet/USB Modem User Manual
Access Control—Admin
Access Control—Services
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