SMC Networks ADSL Barricade SMC7204BRA User Manual page 41

Configuring the LAN Ports
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3. Click [Submit].
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masks must be the same). See IP Addresses, Network
Masks, and Subnets for an explanation of IP addresses
and network masks.
If you change the LAN IP address, you may need to
update the DHCP configuration so that the addresses
that the DHCP server dynamically assigns to your
computers are on the same subnet as the new LAN IP
address.
See Configuring Dynamic Host Configuration Protocol
on page 43 for instructions on changing the pool of
dynamically assigned addresses.
Enabling DHCP:
If you choose to have the LAN port be a DHCP client
of an internal or external server, the [LAN Network Mask]
field will be dimmed and made unavailable for entry. The
[LAN IP Address] field will remain editable, however. The
address that you specify here will be used as a request
to the DHCP server. This is referred to as a Configured IP
Address in the program. If the configured IP address
is not available from the DHCP server, then the system
will accept another assigned address. Even after another
number is assigned, the same configured IP address will
continue to display in this field.
If you changed the LAN IP address while working from
a PC that is connected to the device via Ethernet, then your
connection will be terminated.
If you enabled the DHCP service, the ADSL Barricade will
initiate a request for an IP address from your LAN's DHCP
server. If a different IP address is assigned than the one that