4.4.2 Modify an Existing Connection
To modify an existing connection, click setup and
then click the connection you want to modify. The
connections are listed as Connection 0 through
Connection 7
As a note, if you delete the connection, to make the
change permanent you need to click on Save
Settings (at the side of the page). At the system
commands page, click on Save All.
4.4.3 Modem setup
To configure the DSL modulation type, Click setup.
Under WAN Setup, select Modem Setup. This will
bring up the modem setup screen. Leave the default
value if you are unsure or the DSL/ISP did not provi-
de this information. For most all cases, this screen
should not be modified.
The apply button will temporarily save this connec-
tion. To make the change permanent you need to
click on Save Settings (at the side of the page). At
the system commands page, click on Save All.
4.5 Configuring the LAN
By default, your ADSL Router has DHCP server (LAN
side) enabled. If you already have a DHCP server
running on your network, you must disable one of
the two DHCP servers; if you plug a second DHCP
server into the network, you will experience net-
work errors and the network will not function nor-
mally.
4.5.1 Enable/Disable DHCP
To enable or disable DHCP, Click setup. Under LAN
Setup, select DHCP Configuration. This will bring up
the screen shown in Figure 10.
The Start IP Address is where the DHCP server starts
issuing IP addresses. This value must be greater than
the ADSL Router IP address value. For example if
the ADSL Router IP address is 192.168.1.1 (default)
than the starting IP address must be 192.168.1. 2
(or higher).
The End IP Address is where the DHCP server stops
issuing IP addresses. The ending address cannot
exceed a subnet limit of 254. Hence the max value
for our default gateway is 192.168.1.254. If the
DHCP server runs out of DHCP addresses, users will
not get access to network resources. If this happens
you can increase the Ending IP address (to the limit
of 255) or reduce the lease time.
The Lease Time is the amount of time a network
user will be allowed connection to the ADSL Router
with their current dynamic IP address. The amount
of time is in units of minutes; the default value is
3600 minutes (60 hours).
NOTE:
If you change the start or end values, make
sure the values are still within the same sub-
net as the gateways IP address. In other
words, if the gateways IP address is
192.168.1.1 (default) and you change the
DHCP start/end IP addresses to be
192.128.1.2/192.128.1.100, you will not be
able to communicate to the ADSL Router if
your PC has DHCP enabled.
Figure 10 (DHCP Server configuration)
In addition to the DHCP server feature, the ADSL
Router supports the DHCP relay function. When the
ADSL Router is configured as DHCP server, it assigns
the IP addresses to the LAN clients. When the ADSL
Router is configured as DHCP relay, it is responsible
for forwarding the requests and responses negotia-
ting between the DHCP clients and the server. See
figure 11.
ALL 0333AU – DSL ETHERNET MODEM ROUTER
A L L N E T
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