ADSL2+ Router User’s Guide
4-11
7. NAT should remain enabled. If you disable NAT, you not be able to use more than one computer for
Internet connections. NAT is enabled and disabled system-wide, therefore if you are using multiple virtual
connections, NAT will disabled on all connections.
8. 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 and Filters menus located in the Advanced directory. See the
next chapter for more details on these menus.
9. 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 Unnumbered IP)
10. 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 האיגש !תרדגומ הניא הינמיסה. for a description of
the parameters available for ATM traffic shaping.
11. When you are satisfied that all the WAN settings are configured correctly, click on the Apply button.
PPPoE/PPPoA
Parameters
Description
User Name For PPP connections, a User Name and Password are used to identify and verify your
account to the ISP. Enter the User Name for your ADSL service account. User names and
passwords are case-sensitive, so enter this information exactly as given to you by your
ISP.
Password Together with the User Name, this is used to verify your account to the ISP. Enter the
Password exactly as given to you by your ISP.
Connection
Type This specifies the protocol (PPPoE or PPPoA) and the encapsulation method (LLC or
VC-MUX) used for your connection. The options available are PPPoE LLC, PPPoA LLC
or PPPoA VC-MUX.
MRU Maximum Received Unit size for downloading data. Most users will be happy with the
default setting (1492 bytes). However this may also be optimized for fast downloads of
general bulk Internet traffic, for low latency or for downloading to computers on the
Wireless LAN. As with the MTU setting, the user should carefully consider how changing
the MRU may effect Internet downloads for all systems on your LAN.
Authentication This allows you to choose the protocol the router will use to communicate your Username
and Password for your Internet account. PAP and CHAP are both supported. Your ISP
should provide you with the correct choice.
Obtain DNS
Automatically This allows you to specify if the router will use the DNS server address supplied by your
ISP or if it will use a DNS server address you supply under the DNS directory.
Default Route When this is enabled, the Router will be considered to be the primary gateway to the
Internet and WAN for systems on your network. If you are using the Router on a network
with one or more alternative gateway routers, you may prefer to disable this if you will use
another router as the primary gateway.
NAT Network Address Translation may be enabled or disabled with the pull-down menu. Keep
in mind that disabling NAT allows on a single computer to be used for Internet access
through the Router. NAT is enabled and disable for the Router on all connections (i.e.
Pvc0 – Pvc7) if your Router is set up for multiple virtual connections.
IGMP Enabled/Disabled − this enables or disables IGMP (Internet Group Management
Protocol) on the router. This should normally be enabled.