ARRIS Router Setup – Web GUI User’s Guide
Page 54 of 92 January 2012
You can make changes to the Local Area Network (LAN) configuration here. For changes to take
effect, you must click the Apply button.
LAN Segment: (Technician Level Only)
LAN – Sets the LAN index or identifier for each individual LAN on your network.
Note: You can optionally set up the system so that there is more than one LAN in your
network. This is most useful for commercial applications not home use. All of the “LAN
Setup” and “Wireless Setup” configuration parameters can be set independently for each
individual LAN.
LAN IP Settings:
IP Address – This field displays the IP address of your LAN.
Subnet Mask – This field displays the subnet mask of your LAN.
VLANID – the ID of this VLAN. Value should be between 1 and 4095. A VLAN ID is only added if
the frame is forwarded out of a port configured as a trunk link. If the frame is to be forwarded
out of a port configured as an access link, the ISL encapsulation is removed. (Advanced option –
contact your Service Provider for more information.)
DHCP Server Settings:
Enable DHCP Server – Click this checkbox to enable the use of a Dynamic Host Configuration
Protocol (DHCP) Server on your network.
DHCP is a set of rules used by devices such as a computer, router, or network adapter to allow
the device to request and obtain an IP address from a server which maintains a list of addresses
available for use.
The DHCP server ensures that all IP addresses are unique, e.g., no IP address is assigned to a
second device while the first device's assignment is valid (its lease has not expired).
Without DHCP, the IP addresses must be entered manually at each computer in an organization
and a new IP address must be entered each time a computer moves to a new location on the
network.
Start IP Address – Enter the starting address in the range of IP addresses that the DHCP Server
will be allowed to assign to a network device.
End IP Address – Enter the ending address in the range of IP addresses that the DHCP Server will
be allowed to assign to a network device.
Lease Time – Enter the lease time in seconds before the assigned IP address will expire. (After
the lease time is up, the user is automatically assigned a new dynamic IP address.)
