Zoom 5350 Router Manual PDF (Setup & Configuration Guide)

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Table 29. WMM Menu Option

Option

Description

WMM Support

Select On to include the WME Information Element in beacon frame.

No-Acknowledgement

Select On to not transmit acknowledgments for data.

Power Save Support

Select On to allow the AP (cable modem/router) queuing packets for

stations/clients in power-save mode. Queued packets are transmitted

when the station/client notifies AP that it has left power-save mode.

EDCA AP Parameters

Enter the transmit parameters for traffic transmitted from the AP to

the STA (station) for the four Access Categories (AC): Best Effort

(AC_BE), Background (AC_BK), Video (AC_VI) and Voice (AC_VO).

Transmit parameters include Contention Window (CWmin and

CWmax), Arbitration Inter Frame Spacing Number (AIFSN), and

Transmit Opportunity Limit (TXOP Limit).

There are also two AP-specific settings:

y

Admission Control: Specify if admission control is enforced for

the Access Categories.

y

Discard Oldest First. Specify the discard policy for the queues.

On

discards the oldest first and

Off

discards the newest first.

EDCA STA Parameters

Specifies the transmit parameters for traffic transmitted from the STA

(station) to the AP for the four Access Categories (AC): Best Effort

(AC_BE), Background (AC_BK), Video (AC_VI), and Voice (AC_VO).

Transmit parameters include Contention Window (CWmin and

CWmax), Arbitration Inter Frame Spacing Number (AIFSN) and

Transmit Opportunity Limit (TXOP Limit).

Bridging

The Bridging page allows you to configure WDS (Wireless Distribution System) feature.

Only those bridges listed in the Remote Bridges table will be granted access. APs must operate in

the same channel to be bridged together.

To access the

Bridging

page:

1

Click

Wireless

in the menu bar.

2

Then click the

Bridging

submenu.

Figure 40 shows an example of the menu and Table 30 describes the items you can select.

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Figure 40. Example of Bridging Page

Table 30. Bridging Menu Option

Option

Description

Wireless Bridging

Select to enable or disable wireless bridging.

Remote Bridges

Table of remote bridge MAC addresses authorized to establish a wireless

bridge. Up to 4 remote bridges may be connected. Typically, you will also

have to enter your AP’s MAC address on the remote bridge.

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9

VPN (Virtual Private Network) Menu Options

The VPN Menu lets you:

¾

Configure a VPN tunnel

¾

View VPN event logs

Basic Setting

This page allows you to enable VPN protocols and manage VPN tunnels. A virtual private network

(VPN) is a computer network in which some of the links between nodes are carried by open

connections or virtual circuits within some larger network (e.g., the Internet) as opposed to by

physical wires, as in a traditional private network. A VPN can be used to separate the traffic of

different user communities over an underlying network with strong security features.

To access the

Basic

page:

1

Click

VPN

in the menu bar.

2

Then click the

Basic

submenu.

Figure 41 shows an example of the menu and Table 31 describes the items you can select.

Figure 41. Example of Basic Page

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Table 31. Basic Menu Option

Option

Description

L2TP Server

Select Enable to enable L2TP (Layer 2 Tunneling Protocol) server.

PPTP Server

Select Enable to enable PPTP (Point-to-Point Tunneling Protocol) server.

IPSec Endpoint

Select Enable to enable IPSec endpoint.

IPSec

The IPSec page allows you to configure IPSec tunnel and endpoint settings. A VPN tunnel is usually

established in two phases. Each phase establishes a security association (SA), a contract indicating

what security parameters cable modem/router and the remote IPSec cable modem/router will use.

•

The

first phase

establishes an Internet Key Exchange (IKE) SA between the cable

modem/router and the remote IPSec cable modem/router.

•

The

second phase

uses the IKE SA to securely establish an IPSec SA through which the

cable modem/router and remote IPSec cable modem/router can send data between

computers on the local network and remote network.

Before IPSec VPN configuration, try to familiarize yourself with terms like IPSec Algorithms,

Authentication Header and ESP protocol.

IPSec Algorithms

The ESP and AH protocols are necessary to create a Security Association (SA), the foundation of an

IPSec VPN. An SA is built from the authentication provided by the AH and ESP protocols. The

primary function of key management is to establish and maintain the SA between systems. Once the

SA is established, the transport of data may commence.

AH (Authentication Header) Protocol

The AH protocol (RFC 2402) was designed for integrity, authentication, sequence integrity (replay

resistance), and non-repudiation but not for confidentiality, for which the ESP was designed.

In applications where confidentiality is not required or not sanctioned by government encryption

restrictions, an AH can be employed to ensure integrity. This type of implementation does not

protect the information from dissemination but will allow for verification of the integrity of the

information and authentication of the originator.

ESP (Encapsulating Security Payload) Protocol

The ESP protocol (RFC 2406) provides encryption as well as the services offered by AH. ESP

authenticating properties are limited compared to the AH due to the non-inclusion of the IP header

information during the authentication process. However, ESP is sufficient if only the upper layer

protocols need to be authenticated. An added feature of the ESP is payload padding, which further

protects communications by concealing the size of the packet being transmitted.

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To access the

IPSec

page:

1

Click

VPN

in the menu bar.

2

Then click the

IPSec

submenu.

Figure 42 shows an example of the menu and Table 32 describes the items you can select.

Figure 42. Example of IPSec Page

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