Chapter 6 Interfaces
ZyWALL (ZLD) CLI Reference Guide
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6.9.1 WLAN General Commands
Use these commands to configure global settings that apply to all of the wireless LAN interfaces you
create on the WLAN card.
Table 32 WLAN General Commands
COMMAND DESCRIPTION
wlan slot_name Specifies the slot the WLAN card is installed in and enters sub-command mode.
slot_name: The name of the slot where the WLAN card is installed in the ZyWALL. Use
slotx where x equals the number of the card slot.
[no] activate Turns the wireless device on. The
no command turns it off.
band <b | g | bg| bgn |
gn>
Sets which IEEE 802.11 wireless standard wireless clients can use to connect to the
wireless interface.
•b
•g
•b or g
•b, g, or n
•g or n.
channel
<wireless_channel |
auto>
Sets the wireless operating channel of an IEEE 802.11n interface.
wireless_channel: Specify the channel number. The numbers available vary by region.
channel-width <auto |
20m | 40m>
Sets how wide a channel the IEEE 802.11n interface uses.
guard-interval <short
| long>
Sets the IEEE 802.11n interface’s gap between data transmissions from users to reduce
interference.
short: increases data throughput but may make data transfer more prone to errors.
long: prioritizes data integrity but reduces data transfer rates.
[no] ampdu For an IEEE 802.11n interface, enables or disables grouping of several A-MPDUs
(Aggregate MAC Protocol Data Unit) into one larger frame for faster data transfer rates.
[no] amsdu
For an IEEE 802.11n interface, enables or disables grouping of several A-MSDUs
(Aggregate MAC Service Data Units) into one large A-MPDU (Aggregate MAC Protocol
Data Unit) for faster data transfer rates.
[no] block-ack Turns the IEEE 802.11n interface’s block ACK (BA) mechanism on or off. Block ACK lets
multiple frames be streamed out and acknowledged by a single frame. This cuts the wait
time between frames and increases data throughput.
qos <none | wmm> Select the WLAN Quality of Service priority for an IEEE 802.11n interface.
none: Apply no priority to traffic.
wmm: Wi-Fi Multimedia has the priority of a data packet depend on the packet’s IEEE
802.1q or DSCP header. If a packet has no WMM value assigned to it, it is assigned the
default priority.
[no] ctsrts
<256..2346>
Sets the Clear To Send/Request To Send threshold. CTS/RTS reduces data collisions
caused by wireless clients that are associated with the same AP but out of range of one
another. The no command turns off CTS/RTS.
[no] frag <256..2346> Sets the threshold (number of bytes) for the fragmentation boundary for directed
messages. It is the maximum data fragment size that can be sent.
[no] super
Enables super mode (fast frame and packet bursting).
role ap Sets the ZyWALL to act as an AP (only the AP role is supported at the time of writing.
output-power [100% |
50% | 25% | 12.5%]
Sets the wireless output power. Reducing output power can help reduce interference with
other nearby APs.
qos [none | wmm} Applies Wi-Fi Multimedia Quality of Service (QoS) or no wireless QoS.
