IWCONFIG - Documentation - Revision history

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	== Syntax ==		== Syntax ==

Admin at 16:21, 14 December 2025

2025-12-14T16:21:29Z

← Older revision		Revision as of 16:21, 14 December 2025
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	<nowiki>		<nowiki>
	iwconfig [interface] [options]		iwconfig [interface] [options]</nowiki>
	</nowiki>

	Where:		Where:
	- `[interface]` refers to the wireless network interface (e.g., `wlan0`, `wlan1`).		* `[interface]` refers to the wireless network interface (e.g., `wlan0`, `wlan1`).
	- `[options]` are the various parameters you can modify or display.		* `[options]` are the various parameters you can modify or display.

	== Common Options ==		== Common Options ==
Line 17:		Line 16:
	* `essid [SSID]`: Set the SSID (Service Set Identifier) for the wireless network.		* `essid [SSID]`: Set the SSID (Service Set Identifier) for the wireless network.

	<nowiki>		<nowiki>
	iwconfig wlan0 essid "MyNetwork"</nowiki>		iwconfig wlan0 essid "MyNetwork"</nowiki>

	* `key [key]`: Set the encryption key for the wireless network (e.g., WEP key, WPA key).		* `key [key]`: Set the encryption key for the wireless network (e.g., WEP key, WPA key).

	<nowiki>		<nowiki>
	iwconfig wlan0 key s:mysecretpassword</nowiki>		iwconfig wlan0 key s:mysecretpassword</nowiki>

	* `mode [mode]`: Set the mode of the wireless network interface (e.g., `Managed`, `Ad-Hoc`, `Master`, `Monitor`).		* `mode [mode]`: Set the mode of the wireless network interface (e.g., `Managed`, `Ad-Hoc`, `Master`, `Monitor`).

	<nowiki>		<nowiki>
	iwconfig wlan0 mode Managed</nowiki>		iwconfig wlan0 mode Managed</nowiki>

	* `channel [channel_number]`: Set the wireless channel. The channel number is specific to the frequency band.		* `channel [channel_number]`: Set the wireless channel. The channel number is specific to the frequency band.

	<nowiki>		<nowiki>
	iwconfig wlan0 channel 6</nowiki>		iwconfig wlan0 channel 6</nowiki>

	* `rate [rate]`: Set the rate for the wireless network interface. This is typically set in terms of Mbps.		* `rate [rate]`: Set the rate for the wireless network interface. This is typically set in terms of Mbps.

	<nowiki>		<nowiki>
	iwconfig wlan0 rate 54M </nowiki>		iwconfig wlan0 rate 54M </nowiki>

	* `ap [MAC_address]`: Connect to a specific Access Point (AP) using its MAC address.		* `ap [MAC_address]`: Connect to a specific Access Point (AP) using its MAC address.

	<nowiki>		<nowiki>
	iwconfig wlan0 ap 00:14:22:01:23:45 </nowiki>		iwconfig wlan0 ap 00:14:22:01:23:45 </nowiki>

	* `freq [frequency]`: Set the frequency of the wireless connection in Hz.		* `freq [frequency]`: Set the frequency of the wireless connection in Hz.

	<nowiki>		<nowiki>
	iwconfig wlan0 freq 2.437G </nowiki>		iwconfig wlan0 freq 2.437G </nowiki>

	* `power [power_level]`: Set the power level for the wireless card, controlling how much power is used for transmission.		* `power [power_level]`: Set the power level for the wireless card, controlling how much power is used for transmission.

	<nowiki>		<nowiki>
	iwconfig wlan0 power 10 </nowiki>		iwconfig wlan0 power 10 </nowiki>

	* `txpower [txpower_value]`: Set the transmission power of the wireless interface.		* `txpower [txpower_value]`: Set the transmission power of the wireless interface.

	<nowiki>		<nowiki>
	iwconfig wlan0 txpower 20 </nowiki>		iwconfig wlan0 txpower 20 </nowiki>

	* `essid off`: Disable the SSID (network disassociation).		* `essid off`: Disable the SSID (network disassociation).

	<nowiki>		<nowiki>
	iwconfig wlan0 essid off </nowiki>		iwconfig wlan0 essid off </nowiki>

	== Display Wireless Information ==		== Display Wireless Information ==

Admin: Created page with "Category:Wiki == Syntax == The general syntax for the `iwconfig` command is as follows: iwconfig [interface] [options] Where: - `[interface]` refers to the wireless network interface (e.g., `wlan0`, `wlan1`). - `[options]` are the various parameters you can modify or display. == Common Options == * `essid [SSID]`: Set the SSID (Service Set Identifier) for the wireless network. iwconfig wlan0 essid "MyNetwork" * `ke..."

2025-12-14T16:20:00Z

Created page with "Category:Wiki == Syntax == The general syntax for the `iwconfig` command is as follows: <nowiki> iwconfig [interface] [options] </nowiki> Where: - `[interface]` refers to the wireless network interface (e.g., `wlan0`, `wlan1`). - `[options]` are the various parameters you can modify or display. == Common Options == * `essid [SSID]`: Set the SSID (Service Set Identifier) for the wireless network. <nowiki> iwconfig wlan0 essid "MyNetwork"</nowiki> * `ke..."

New page

[[Category:Wiki]]

== Syntax ==

The general syntax for the `iwconfig` command is as follows:

<nowiki>
iwconfig [interface] [options]
</nowiki>

Where:
- `[interface]` refers to the wireless network interface (e.g., `wlan0`, `wlan1`).
- `[options]` are the various parameters you can modify or display.

== Common Options ==

* `essid [SSID]`: Set the SSID (Service Set Identifier) for the wireless network.

<nowiki>
iwconfig wlan0 essid "MyNetwork"</nowiki>

* `key [key]`: Set the encryption key for the wireless network (e.g., WEP key, WPA key).

<nowiki>
iwconfig wlan0 key s:mysecretpassword</nowiki>

* `mode [mode]`: Set the mode of the wireless network interface (e.g., `Managed`, `Ad-Hoc`, `Master`, `Monitor`).

<nowiki>
iwconfig wlan0 mode Managed</nowiki>

* `channel [channel_number]`: Set the wireless channel. The channel number is specific to the frequency band.

<nowiki>
iwconfig wlan0 channel 6</nowiki>

* `rate [rate]`: Set the rate for the wireless network interface. This is typically set in terms of Mbps.

<nowiki>
iwconfig wlan0 rate 54M </nowiki>

* `ap [MAC_address]`: Connect to a specific Access Point (AP) using its MAC address.

<nowiki>
iwconfig wlan0 ap 00:14:22:01:23:45 </nowiki>

* `freq [frequency]`: Set the frequency of the wireless connection in Hz.

<nowiki>
iwconfig wlan0 freq 2.437G </nowiki>

* `power [power_level]`: Set the power level for the wireless card, controlling how much power is used for transmission.

<nowiki>
iwconfig wlan0 power 10 </nowiki>

* `txpower [txpower_value]`: Set the transmission power of the wireless interface.

<nowiki>
iwconfig wlan0 txpower 20 </nowiki>

* `essid off`: Disable the SSID (network disassociation).

<nowiki>
iwconfig wlan0 essid off </nowiki>

== Display Wireless Information ==

To display the current wireless configuration of an interface, use the `iwconfig` command without any options or arguments:

<nowiki>
iwconfig wlan0</nowiki>

This will show information about:
- The current SSID and the signal quality.
- The encryption settings (e.g., WEP, WPA).
- The current channel and frequency.
- The transmission rate and power settings.

Example:

<nowiki>
wlan0 IEEE 802.11 ESSID:"MyNetwork" Nickname:"<WIFI@REALTEK>"
Mode:Managed Frequency:2.437 GHz Access Point: 00:14:22:01:23:45
Bit Rate=54 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=70/70 Signal level=-50 dBm Noise level=-95 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0</nowiki>

== Common Use Cases ==

* **Connecting to a Wireless Network**:
To connect to a wireless network using the SSID and WEP key:

<nowiki>
iwconfig wlan0 essid "MyNetwork" key s:mysecretpassword</nowiki>

* **Switching Between Channels**:
To switch your wireless card to a specific channel (e.g., Channel 11):

<nowiki>
iwconfig wlan0 channel 11</nowiki>

* **Setting the Wireless Mode**:
To switch the wireless mode to Ad-Hoc (for peer-to-peer connections):

<nowiki>
iwconfig wlan0 mode Ad-Hoc</nowiki>

* **Monitoring Wireless Networks**:
To enable monitor mode to capture wireless packets:

<nowiki>
iwconfig wlan0 mode Monitor</nowiki>

== Troubleshooting ==

* **No Network Connection**:
If you are unable to connect to a wireless network, ensure that:
* The wireless interface is enabled.
* The SSID and encryption keys are correctly set.
* The wireless network is within range.

* **Signal Quality Issues**:
If you notice poor signal quality, try changing the wireless channel to avoid interference from nearby networks.

<nowiki>
iwconfig wlan0 channel 1</nowiki>

* **Wireless Interface Not Found**:
Ensure that the correct driver is installed for your wireless network card, and check whether the interface exists (e.g., `wlan0` or `wlan1`).

== Useful Links ==

* [iwconfig Manual Page](https://man7.org/linux/man-pages/man8/iwconfig.8.html)
* [Wireless Tools for Linux](https://github.com/jbostian/wireless-tools)
* [Linux Wireless Wiki](https://wireless.wiki.kernel.org/)
* [iwconfig - ArchWiki](https://wiki.archlinux.org/title/Iwconfig)