Cisco RV 120W Administration Guide

Configuring Networking
Configuring the Local Area Network (LAN)
Cisco RV 120W Administration Guide 38
2
STEP 1 Choose Networking > LAN > LAN Configuration.
STEP 2 In the DHCP Section, in the DHCP Mode field, choose one of the following:
• DHCP Server—Choose this to allow the Cisco RV 120W to act as the DHCP
server in the network. Enter the following information:
- Domain Name—Enter the domain name for your network (optional).
- Starting and Ending IP Address—Enter the first and last of the
contiguous addresses in the IP address pool. Any new DHCP client
joining the LAN is assigned an IP address in this range. You can save part
of the range for PCs with fixed addresses. These addresses should be
in the same IP address subnet as the router's LAN IP address.
- Primary and Secondary DNS Server—DNS servers map Internet
domain names (for example, www.cisco.com) to IP addresses. Enter the
server IP addresses in these fields if you want to use different DNS
servers than are specified in your WAN settings.
- Lease time—Enter the duration (in hours) for which IP addresses are
leased to clients.
• DHCP Relay—If you chose DHCP Relay as the DHCP mode, enter the
address of the relay gateway in the Relay Gateway field. The relay gateway
transmits DHCP messages between multiple subnets.
• None—Use this to disable DHCP on the Cisco RV 120W. If you want another
PC on your network to be the DHCP server, or if you are manually
configuring the network settings of all of your PCs, disable DHCP.
STEP 3 Click Save.
Configuring the LAN DNS Proxy
STEP 1 Choose Networking > LAN > LAN Configuration.
STEP 2 In the LAN Proxy section, to enable the Cisco RV 120W to act as a proxy for all
DNS requests and communicate with the ISP's DNS servers, check Enable DNS
Proxy. When this feature is enabled, the router acts as a proxy for all DNS requests
and communicates with the ISP's DNS servers (as configured in the WAN settings
page). All DHCP clients receive the Primary/Secondary DNS IP and the IP of the
router where DHCP is running. All DHCP clients receive the DNS IP addresses of

Cisco RV 120W Specifications

General

Brand	Cisco
Model	RV 120W
Category	Network Router
Language	English