User Manual
Table Of Contents
- Introduction
- Front Panel
- Back Panel
- Installation Guidelines
- Wall Mounting
- Using the Setup Wizard
- Entering Login and Internet Connection Information
- Manually Connecting Your System
- Logging In
- Using the Getting Started Page
- Navigating through the Pages
- Saving Your Changes
- Viewing the Help Files
- Viewing the System Summary
- Viewing the Wireless Status
- Viewing the IPsec Connection Status
- Viewing the QuickVPN Connection Status
- Viewing Logs
- Viewing Available LAN Hosts
- Viewing the Port Triggering Status
- Viewing Port Statistics
- Configuring Networking
- Configuring the WAN for an IPv4 Network
- Configuring the WAN for an IPv6 Network
- Creating PPPoE Profiles
- Changing the Default Cisco RV 120W IP Address
- Configuring DHCP
- Configuring the LAN DNS Proxy
- Configuring Virtual LANs (VLANs)
- Configuring Port VLANs
- Configuring Multiple VLAN Subnets
- Configuring IPv6 LAN Properties
- Configuring LAN Groups
- Adding a Static IP Address for a Device on the LAN
- Configuring a DMZ Host
- Configuring Internet Group Management Protocol (IGMP)
- Choosing the Routing Mode
- Viewing Routing Information
- Configuring Static Routing
- Configuring Dynamic Routing
- Configuring the Routing Mode
- Configuring IPv6 Static Routing
- Configuring RIP next generation (RIPng)
- Configuring IPv6 to IPv4 Tunneling
- Configuring Router Advertisement
- Configuring the Wireless Network
- Wireless Security Tips
- General Network Security Guidelines
- Configuring the Group Key Refresh Interval
- Configuring RADIUS Authentication Parameters
- Enabling or Disabling APs
- Editing an AP’s Properties
- Using MAC Filtering
- Viewing AP Status
- Configuring the Firewall
- Protecting from Attacks
- Configuring Universal Plug and Play (UPnP)
- Enabling Session Initiation Protocol Application-Level Gateway (SIP ALG)
- Configuring the Default Outbound Policy
- Creating a Firewall Rule
- Managing Firewall Rules
- Creating Custom Services
- Blocking Web Applications and Components
- Adding Trusted Domains
- Adding Blocked Keywords
- Configuring MAC Address Filtering
- Configuring IP/MAC Address Binding
- Restricting Sessions
- Configuring Virtual Private Networks (VPNs) and Security
- Creating Cisco QuickVPN Client Users
- Using the VPN Wizard
- Viewing the Default Values
- Configuring IP Security Policies
- Configuring VPN Policies
- Configuring VPN Clients
- Monitoring VPN Tunnel Status
- Configuring IPsec Users
- Configuring VPN Passthrough
- Using Certificates for Authentication
- Using the Cisco RV 120W With a RADIUS Server
- Configuring 802.1x Port-Based Authentication
- Configuring Quality of Service (QoS)
- Configuring 802.1p to Queue Mapping
- Configuring 802.1p CoS to DSCP Remarking
- Administering Your Cisco RV 120W
- Editing SNMPv3 Users
- Adding SNMP Traps
- Configuring Access Control Rules
- Configuring Additional SNMP Information
- Using PING
- Using Trace Route
- Performing a DNS Lookup
- Capturing and Tracing Packets
- Configuring Local Logging
- Configuring Remote Logging
- Configuring the Logging Type and Notification
- Configuring E-Mailing of Log Events
- Configuring VLAN Associations
- Using Cisco QuickVPN for Windows 2000, XP, or Vista
- Installing from the CD-ROM
- Downloading and Installing from the Internet
- Where to Go From Here
Configuring the Wireless Network
Configuring the Wireless Radio Properties
Cisco RV 120W Administration Guide 71
3
Configuring Advanced Wireless Radio Settings
STEP 1 Choose Wireless > Radio Settings > Radio Settings.
STEP 2 In the beacon interval field, enter the time in milliseconds between beacon
transmissions. The default interval is 100 milliseconds.
STEP 3 In the DTIM interval field, enter the interval at which the delivery traffic indication
message should be sent. A DTIM field is a countdown field informing clients of the
next window for listening to broadcast and multicast messages. When the Cisco
RV 120W has buffered broadcast or multicast messages for associated clients, it
sends the next DTIM with a DTIM Interval value. Its clients hear the beacons and
awaken to receive the broadcast and multicast messages.The default interval is 2
beacon intervals.
STEP 4 The Request to Send (RTS) threshold is the packet size, in bytes, that requires the
AP to check the transmitting frames to determine if an RTS/Clear to Send (CTS)
handshake is required with the receiving client. Using a small value causes RTS
packets to be sent more often, consuming more of the available bandwidth,
reducing the apparent throughput of the network packets. The default value is
2346, which effectively disables RTS.
STEP 5 The fragmentation threshold is the maximum length of the frame, in bytes, beyond
which packets must be fragmented into two or more frames. Collisions occur
more often for long frames because while sending them, they occupy the channel
for a longer time. The default value is 2346, which effectively disables
fragmentation. If you experience a high packet error rate, you can slightly increase
the fragmentation threshold; setting the fragmentation threshold too low may
result in poor network performance. Only minor reduction of the default value is
recommended.
STEP 6 Choose the preamble mode. The 802.11b standard requires that a preamble be
appended to every frame before it is transmitted through the air. The preamble
may be either the traditional “long” preamble, which requires 192 μs for
transmission, or it may be an optional “short” preamble that requires only 96 μs. A
long preamble is needed for compatibility with the legacy 802.11 systems
operating at 1 and 2 Mbps. The default selection is long.
STEP 7 Choose the protection mode. Select none (the default) to turn off CTS. The CTS-
to-Self Protection option enables the CTS-to-Self protection mechanism, which is
used to minimize collisions among stations in a mixed 802.11b and 802.11g
environment. This function boosts the Cisco RV 120W’s ability to catch all wireless
transmissions but severely decreases performance.