Proxim ORiNOCO User's Guide download pdf (Page 47)

Access Point Features AP-800 User Guide

Configuring the Device

You can enter a maximum number of 64 entries for a table.

Intra BSS Filtering

The wireless clients that associate with a certain AP from the Basic Service Set (BSS) of a network infrastructure. By

default, wireless subscribers in the same BSS can communicate with each other. However, some administrators may

wish to block traffic between wireless subscribers that are associated with the same AP to prevent unauthorized

communication and to conserve bandwidth. This feature enables you to prevent wireless subscribers within a BSS from

exchanging traffic.

Although this feature is generally enabled in public access environments, Enterprise LAN administrators use it conserve

wireless bandwidth by limiting communication between wireless clients. For example, this feature prevents peer-to-peer

file sharing or gaming over the wireless network.

• If you select to block the traffic, then the wireless traffic between the clients associated with the same or different BSS

(Basic Service Set) will not be able to communicate with each other.

• If you select to passthru, then the wireless traffic between the clients associated with the same or different BSS will be

able to communicate with each other.

IP Layer

IP Protocol Filtering

This filtering type is also known as Advanced Filtering. The device is provided with some known protocol entries. Using

this filter type you can block the specific IP Protocol traffic. You can enable or disable the entries as well the change the

direction of the traffic.

TCP/UDP Layer

Port-based filtering enables you to control wireless user access to network services by selectively blocking TCP/UDP

protocols through the AP. A user specifies a Protocol Name, Port Number, Port Type (TCP, UDP, or TCP/UDP), and

filtering interfaces (only Wireless, only Ethernet or Both) in order to block access to services, such as Telnet and FTP, and

traffic, such as NETBIOS and HTTP. You can enter up to maximum 64 entries for a table.

For example, an AP with the following configuration would discard frames received on its Ethernet interface with a UDP

destination port number of 137, effectively blocking NETBIOS Name Service packets.

Filtering Features

• Global Filter Flag: This parameter is used to enable or disable the filtering tag. If you disable this filtering tag, then the

no filtering feature will be applicable.

• Intra BSS Filtering: This parameter is used configure wireless to wireless communication.

Protocol Filter

• Filtering Control: This parameter is used to enable the interface either for Ethernet, Wireless or both.

• Filtering Type: This parameter is used to configure the filtering type. If the specific protocol is not available on the

protocol filter table, then the filtering type would be performed on the packet that is being transmitted.

• Protocol Name: This parameter represents the Ethernet protocol filtering name.

• Protocol Number: This parameter represents the Ethernet protocol filtering number.

• Filter Status: This parameter is used for configuring the status of the Ethernet protocol filtering.

Protocol Name Port Number Port Type Filter InterfaceEntry Status

(Enable/Disable)

NETBIOS Name Service 137 UDP Ethernet Enable

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Proxim ORiNOCO User's Guide Page 47