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5. Choose the Connection Type from the pull-down menu located under the User Name and
Password entry fields. This defines both the connection protocol and encapsulation method used
for your ADSL service. The available options are PPPoA VC-Mux, PPPoA LLC and PPPoE LLC. If
have not been provided specific information for the Connection Type setting, leave the default
setting.
6. Leave the MTU value at the default setting (default = 1400) unless you have specific reasons to
change this (see table below for more information).
7. Leave the MRU value at the default setting (default = 1492) unless you have specific reasons to
change this (see table below for more information).
8. Leave the Default Route enabled if you want to use the Router as the default route to the
Internet for your LAN. Whenever a computer on the LAN attempts to access the Internet, the
Router becomes the Internet gateway to the computer. If you have an alternative route for
Internet traffic you may disable this without effecting the Router's connection.
9. Enable PPPoE PassThrough if you want the Router to allow a "dial-up" or separate bridged PPP
connection to an individual PC (see table below for more information).
10. NAT should remain Enabled. If you disable NAT, you will not be able to use more than one
computer for Internet connections. If you are using multiple virtual connections, NAT functions
system-wide, therefore if t is disabled, NAT will disabled on all connections.
11. The Firewall should remain enabled for most users. If you choose to disable this you will not be
able to use the features configured in the Firewall Configuration and Filters windows located
in the Advanced directory. The next chapter contains a separate section describing these
Advanced features.
12. Typically the globally IP settings (i.e. IP address for the WAN interface) for a PPPoA or PPPoA
connection will use Dynamic IP assignment from the ISP. Some accounts may be assigned a
specific global IP address. If you have been give an IP address for you PPPoE/PPPoA connection,
select the Static IP option from the IP Control pull-down menu. This menu can be used to
configure the WAN port as an Unnumbered IP interface. (See table below for information on
Unnumbered IP).
13. Choose the desired Connection Setting. Select from: Always ON, Connection On Demand, or
Manual. Most users will want to choose the default connection setting, Always ON.
14. Point-to-Point Tunneling Protocol is a pass-through mechanism that allows packets to pass
through the Router so that it effectively functions as a bridge. Check Enable PPTP and enter the
required information in the ServerIP/Name, Route Target, Route Mask, PPTP Account,
PPTP Password, and MPPE Encryption fields. A table on page 47 provides a summary of the
parameters used to configure PPTP connections.
15. Most users will not need to change ATM settings. If this is the first time you are setting up the
ADSL connection it is recommended that you leave the Service Category settings at the default
values until you have established the connection. See the table on page 44 for a description of
the parameters available for ATM traffic shaping.
16. When you are satisfied that all the WAN settings are configured correctly, click on the Apply
button.
17. The new settings must be saved and the Router must be
restarted for the settings to go into effect. To save and
reboot the Router, click on the Tools directory tab and
then click the System button. In the System Settings
window, click the Save and Reboot button under Save
Settings and Reboot the System.
18. Click OK when the following "Save and restart?" dialog box
opens.
19. The Router will save the new settings and restart. Upon restarting the Router will automatically
establish the WAN connection.
DSL-504T DSL Router User's Guide
42
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