Nomadix AG 5500, User Manual, Page: 93 / 338

AG 5500
System Administration 81
2. DHCP Services
is enabled by default. Do not disable it unless you want to lose all your
DHCP services.
3.
To route DHCP through an external server, enable the
DHCP Relay
.
4.
If you enabled the DHCP Relay feature, you must assign a valid
DHCP Server IP
address
(the default is 0.0.0.0) and a valid
DHCP Relay Agent IP
address.
The DHCP Relay Agent allows the AG 5500 to request a specific range of IP addresses
from different IP pools from the DHCP Server. Leaving these fields blank forces the
system to use the IP pool that contains IP addresses that are on the same subnet as the AG
5500.
5. If you want the AG 5500 to act as its own DHCP Server (you did not enable the DHCP
Relay ), enable it now.
6. If required, you can make the DHCP Server feature Subnet -based by checking the
appropriate box.
7.
If required, enable the
IP Upsell
feature .
System administrators can set two different DHCP pools for the same physical LAN.
When DHCP subscribers select a service plan with a public pool address, the AG 5500
associates their MAC address with their public IP address for the duration of the service
level agreement. The opposite is true if they select a plan with a private pool address. This
feature enables a competitive solution and is an instant revenue generator for ISPs. The IP
Upsell functionality solves a number of connectivity problems, especially with regard to
L2TP and certain video conferencing and online gaming applications.
Nomadix’ patented Dynamic Address Translation (DAT) functionality is
automatically configured to facilitate “plug-and-play” access to subscribers who
are misconfigured with static (permanent) IP addresses, or subscribers that do
not have DHCP capability on their computers. DAT allows all users to obtain
network access, regardless of their computer’s network settings.
By default, the AG 5500 is configured to act as its own DHCP server and the
relay feature is “disabled.” If you want the AG 5500 to act as its own DHCP
server, do not enable the relay. Go directly to Step 8.
You must disable the DHCP server before enabling the DHCP relay. Both
features cannot be enabled concurrently.
If the DHCP Relay Agent IP address is set for an address that is already used or
the IP address of the server, the other system will get an IP conflict and will not
have Internet access.
ag5500_userguide.book Page 81 Tuesday, June 5, 2007 7:31 PM