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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 negotiating between the DHCP clients and the server. See figure 11.
Figure 11 (Example of a DHCP Relay configuration)
y turning off the DHCP server and relay the network administrator must carefully configure the
he apply button will temporarily save this connection. To make the change permanent you need
.5.2 Changing the ADSL Router IP address
tup and under LAN Setup, select
.5.2.1 Static IP address assignment
d subnet mask are 192.168.1.1/255.255.255.0; this
e default gateway is the routing device used to forward all traffic that is not addressed to a
B
IP address, Subnet Mask and DNS settings of every computer on your network. Do not assign
the same IP address to more than one computer and your ADSL Router must be on the same
subnet as all the other computers.
T
to click on Save Settings (at the side of the page). At the system commands page, click on Save
All.
4
You can change the ADSL Router’s IP address by, clicking Se
Management. This will bring up the screen shown in Figure 12.
4
Your ADSL Router’s default IP address an
subnet mask will allow the ADSL Router to support 254 users. If you want to support a larger
number of users you can change the subnet mask; but remember, the DHCP server is defaulted
to only give out 255 IP addresses. Further remember that if you change your gateways’ IP
address and you have DHCP enabled, the DHCP configuration must reside within the same
subnet
Th
station within the local subnet. Your ISP will provide you with the default gateway Address.
Figure 12 shows a default gateway address of 203.125.64.1 because this was the default
gateway defined when the CLIP connection was configured.
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