N300 Wireless Dual Band ADSL2+ Modem Router DGND3300v2 User Manual
Figure 57.
The WAN Setup fields are described in the following table:
Setting | Description |
|
|
Connect Automatically, as | Usually, this check box is selected, so that an Internet connection is made |
Required | automatically whenever |
| connection costs, you can clear the check box to disable this feature. |
| If this setting is disabled, you must connect manually, using the screen that you |
| access by clicking the Connection Status button on the Status screen. |
| If you have an Always on connection, this setting has no effect. |
|
|
Enable PPPoE Relay | Selecting this check box allows a PPPoE client on a local PC to connect to a |
| remote PPPoE server with the N300 wireless modem router acting as a relay |
| agent. |
|
|
Disable Port Scan and DOS | The firewall protects your LAN against port scans and denial of service (DOS) |
Protection | attacks. This protection should be disabled only in special circumstances. |
|
|
Default DMZ Server | This feature is sometimes helpful when you are using some online games and |
| videoconferencing. Be careful when using this feature because it makes the |
| firewall security less effective. See Configuring Static Routes on page 123. |
|
|
Respond to Ping on Internet | If you want the N300 wireless modem router to respond to a ping from the |
WAN Port | Internet, select this check box. This should be used only as a diagnostic tool, |
| since it allows your N300 wireless modem router to be discovered. Do not select |
| this check box unless you have a specific reason to do so. |
|
|
MTU Size (in bytes) | The normal MTU (Maximum Transmit Unit) value for most Ethernet networks is |
| 1500 bytes, or 1492 bytes for PPPoE connections. For some ISPs you might |
| need to reduce the MTU. This is rarely required, and should not be done unless |
| you are sure it is necessary for your ISP connection. See Changing the MTU |
| Size on page 134. |
|
|
Disable SIP ALG | The Session Initiation Protocol (SIP) Application Level Gateway (ALG) is |
| enabled by default to optimize VoIP phone calls that use the SIP. The Disable |
| SIP ALG check box allows you to disable the SIP ALG. Disabling the SIP ALG |
| might be useful when running certain applications. |
|
|
118 Chapter 7. Advanced Settings (Part 1)
