Allied Telesis AT-WR4500 manual Wireless Interface Configuration, 30km 249, 35km 298, 40km 350

AT-WR4500 Series - IEEE 802.11abgh Outdoor Wireless Routers	35
RouterOS v3 Configuration and User Guide

ack-timeout

range

5GHz 5GHz-turbo 2.4GHz-G

30km	249	137	368
35km	298	168	320
40km	350	190	375
45km	405	-	-

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These are not the precise values. Depending on hardware used and many other factors they may vary up to +/- 15 microseconds.

You can also use dynamic ack-timeout value - the router will determine ack-timeoutsetting automatically by sending periodically packets with a different ack-timeout. Ack-timeout values by which ACK frame was received are saved and used later to determine the real ack-timeout.

The Nstreme protocol may be operated in three modes:

•Point-to-Point mode - controlled point-to-point mode with one radio on each side

•Dual radio Point-to-Point mode (Nstreme2) - the protocol will use two radios on both sides simultaneously (one for transmitting data and one for receiving), allowing superfast point-to-point connection

•Point-to-Multipoint- controlled point-to-multipoint mode with client polling (like AP-controlled TokenRing)

•

4.3.2 Wireless Interface Configuration

Submenu level: /interface wireless

Description

In this section we will discuss the most important part of the configuration.

Property Description

ack-timeout(integer dynamic indoors) - acknowledgement code timeout (transmission acceptance timeout) in microseconds for acknowledgement messages. Can be one of these:

dynamic - ack-timeout is chosen automatically indoors - standard constant for indoor usage

adaptive-noise-immunity(yes no; default: yes) - adjust various receiver parameters dynamically to minimize interference and noise effect on the signal quality.

allow-sharedkey(yes no; default: no) - allow WEP Shared Key cilents to connect. Note that no authentication is done for these clients (WEP Shared keys are not compared to anything) - they are just accepted at once (if access list allows that)

antenna-gain(integer; default: 0) - antenna gain in dBi. This parameter will be used to calculate whether your system meets regulatory domain's requirements in your country

antenna-mode(ant-a ant-b rxa-txb txa-rxb; default: ant-a) - which antenna to use for transmit/receive data:

ant-a- use only antenna a ant-b- use only antenna b

rxa-txb- use antenna a for receiving packets, use antenna b for transmitting packets txa-rxb- use antenna a for transmitting packets, antenna b for receiving packets

area (text; default: "") - string value that is used to describe an Access Point. Connect List on the Client's side comparing this string value with area-prefixstring value makes decision whether allow a Client connect to the AP. If area-prefixmatch the entire area string or only the beginning of it the Client is allowed to connect to the AP

arp (disabled enabled proxy-arp reply-only; default: enabled) - Address Resolution Protocol setting