Digi TransPort LR54 - Delete a LAN; DHCP Servers; Configure a DHCP Server

Local Area Networks (LANs) Delete a LAN
Digi TransPort WR Routers User Guide
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Delete a LAN
Deleting a LAN involves removing the physical interface associations from the LAN, thereby disabling
the LAN. The definition for the LAN still exists in the device configuration, but it has no active physical
interface.
Web
1. On the menu, click Network > Networks > LANs. The LANs page appears.
2. On the LANs page, select the LAN to delete.
3. Click Delete.
Command line
Use the lan command and specify ! for the interfaces parameter value to set it to none:
lan <lan-number> interfaces !
DHCP servers
You can enable DHCP on a TransPort device to assign IPaddresses to clients, using either:
n The DHCP server for the device's local network, which assigns IP addresses to clients on the
device's local network. Addresses are assigned from a specified pool of IPaddresses. For a
local network, the device uses the DHCP server that has the IPaddress pool in the same
IPsubnet as the local network.
When a host receives an IPconfiguration, the configuration is valid for a particular amount of
time, known as the lease time. After this lease time expires, the configuration must be
renewed. The host renews the lease time automatically.
You can configure up to 10 DHCP servers, one for each local network.
n A DHCP relay server, which forwards DHCP requests from clients to a DHCP server that is
running on a separate device.
Configure a DHCP server
To configure a DHCP server, you need to configure the following:
Required configuration items
n Enable the DHCP server.
n DHCP method:
l Ifthe device is being configured to use its local DHCP server:
o
The IPaddress pool: the range of IPaddresses issued by the DHCPserver to clients.
Note If you set DHCP server values and find that they are not being served to your DHCP
clients, review the LANconfiguration in the Local Networks pageto make sure that the
specified IP Start and IP End values match the corresponding IPv4 and Netmask
settings for the interface.
l If the device is being configured to use a DHCP relay server, see DHCP relay.