Westermo MR Series - Manual (Page 68)

68 6622-3201
Web Interface and Command Line Reference Guide www.westermo.com
Confi gure > DHCP Servers > Ethernet Port n 4.17
Westermo routers incorporate one or more Dynamic Host Configuration Protocol (DHCP) serv-
ers, one for each Ethernet port. DHCP is a standard Internet protocol that allows a DHCP server
to dynamically distribute IP addressing and configuration information to network clients.
The Configure > DHCP Servers folder contains one page for each for the DHCP Server instances.
In addition, there is a separate page for mapping MAC addresses to fixed IP addresses.
Using the Web Page(s)
The Configure > DHCP Servers pages allow you to set up the parameters for the DHCP servers.
The parameters are as follows.
Forward requests to this server (Act as relay agent):
Use this parameter if the DHCP server is on a different subnet. Entering an IP address will for-
ward DHCP requests to the IP address specified. DHCP server must be within 4 hops.
Minimum assigned IP address:
This parameter specifies the lowest IP address that the DHCP server will assign to a client.
Clearing this parameter will disable the DHCP server. This may be necessary if another device
on the LAN provides a DHCP server.
IP address range:
This parameter is used to specify the number of different IP addresses that the DHCP server
will assign. A value of 10 would assign 10 addresses starting with the address set for the
Minimum assigned IP address parameter.
Minimum assigned IP address #2 & #3:
As above, but if using pools 2 & 3 this allows for breaks in the DHCP scope. eg DHCP pool 1
172.16.1.1 - 10, DHCP pool 2 172.16.1.21 - 99. Leaving 172.16.1.11 -20 free for static IP
addresses.
1 - Mask:
This parameter specifies the subnet mask used on the network to which the unit is connected.
For example, for a Class C network this would be 255.255.255.0.
3 - Gateway address:
A “gateway” is required in order to route data to IP addresses that are not on the local subnet.
This parameter specifies the IP address of the gateway (which is usually the IP address of the
router itself as configured by the IP address parameter on the Configure > Ethernet > ETH n
page). Alternatively, you may set this to the address of another router on the LAN.
6 - DNS server address:
This parameter specifies the IP address of the primary DNS server to be used by clients on
the LAN. This will usually be the IP address of the unit itself (as configured by the Configure >
Ethernet > ETH n IP address parameter). Alternatively, you may set this to the address of an
alternative DNS server.
6 - Secondary DNS server address:
This parameter specifies the IP address of a secondary DNS server (if available) to be used by
clients on the LAN.
15 - Domain name:
This is the domain name which will be returned to clients. Altered DNS so that queries for
names using that domain.