VT2542 Voice Gateway User Guide
15
Overview
Installation
Troubleshooting
Contact
FAQ
Glossary
License
Configuration:
Basic
Advanced
TCP/IP
Wireless
WAN Setup for PPPoE (DSL)
PPPoE Connection Setup fields and buttons
Field or Button
Description
Options
We recommend leaving the following selected:
•
NAT — Enables
Network Address Translation
•
Firewall — Enables the VT2542 firewall
User name
Your PPPoE user name provided by your DSL provider.
Password
Your PPPoE password provided by your DSL provider.
Authentication
Sets the authentication:
•
Auto — Automatic
•
CHAP — Challenge Handshake Authentication Protocol
•
PAP — Password Authentication Protocol
Microsoft CHAP v2 is supported in the Auto and CHAP options. MS CHAP v1 is not supported.
MTU
The maximum transmission unit for the DSL connection. It is a negotiated value that represents
the maximum size in bytes of the packets sent over the connection. The default is 1492. The
maximum is 1500. The minimum is 64.
Override MAC
If your cable or DSL provider associates a particular service to a specific device, such as your
computer, select this field and type that MAC address in the
MAC
field to use as a “virtual”
WAN
MAC address
instead of the VT2542 MAC address. By default, the MAC address printed on the
VT2542 is displayed in this field.
Restore
Restores the actual VT2542 MAC address.
Enforce MTU
If enabled (the default), all
TCP
segments must have a size within the PPPoE MTU.
If you disable
this, you may have problems accessing some Internet sites.
Debug
Enables PPPoE debugging for use by technical support personnel
only
.
Connect
Establishes the DSL connection.
Disconnect
Ends the DSL connection.
If you disconnect your DSL connection, your VoIP service cannot work.
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