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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 VT2442 firewall |
User name | Your PPPoE user name provided by your DSL provider. |
Password | Your PPPoE password provided by your DSL provider. |
Keep Alive | Sets the time before your DSL provider terminates an inactive connection. To ensure that your |
| DSL link is always active, type 0 in this field. |
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 VT2442 MAC address. By default, the MAC address printed on the |
| VT2442 is displayed in this field. |
Restore | Restores the actual VT2442 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. |
VT2442 Voice Gateway User Guide | 17 |