SENA LS110 - Manual (Page 21)

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3.1.5 Default Gateway
A gateway is a network point that acts as an entrance to another network. Usually, the computers that
control traffic within the network or at the local Internet service provider are gateway nodes. The
LS110 needs to know the IP address of the default gateway computer in order to communicate with
the hosts outside the local network environment. For correct information on the gateway IP address,
please refer to your local network administrator.
Basic usage of ‘Default gateway’ is as follows.
-----------------------------------------------------------------------------
IP configuration
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1. IP mode : Static IP
2. IP address : 192.168.23.12
3. Subnet mask : 255.255.255.0
4. Default gateway : 192.168.1.1
5. Primary DNS : 168.126.63.1
6. Secondary DNS : 168.126.63.2
Back, Refresh
---> 4
Enter default gateway
--->
Figure 3-5 Setting Default gateway
Enter gateway to be changed.
3.2 DHCP
3.2.1 Overview
Dynamic Host Configuration Protocol (DHCP) is a communications protocol that lets network
administrators manage and automate the assignment of IP addresses centrally in an organization's
network. DHCP lets a network administrator supervise and distribute IP addresses from a central point
and automatically send a new IP address when a computer is plugged into a different place in the
network.
As described in 3.1 Static IP, the IP address must be entered manually at each computer in Static IP
mode and, if computers move to another location in another part of the network, a new IP address
must be entered. Meanwhile, all the parameters including the IP address, subnet mask, gateway, DNS
servers will be automatically configured when the IP address is set to DHCP mode. DHCP uses the
concept of a "lease" or amount of time for which a given IP address will be valid for a computer. All the
parameters required to assign an IP address are configured on DHCP server side, and each DHCP