User`s guide

previous overview of promiscuous mode for more information about this mode). Typically, you

will want to operate in promiscuous mode, which is selected by default. However, if your WNIC

doesn't support promiscuous mode, or if you are only concerned with the data traveling to and

from your device, you can select this option to only capture local traffic.

Set Buffer Size

The Airscanner Mobile Sniffer™ buffer size refers to the storage settings used when

sniffing data. Due to the limited space, special consideration must be paid to the amount of

information that is captured. By selecting this option, you will gain access to three main

properties of data collection that can help you save space and narrow down the information you

are actually collecting.

The first option is the number of packets to collect. This is set at a default of 100 packets.

This is a conservative setting, but we prefer to allow you to increase this setting to a higher value

as your Pocket PC device permits. If it is too high, you could quickly fill up all spare space in

your Pocket PC device. The second option, Packet Size Limit, was added to allow you to focus

only on header information. If you aren't concerned with the data in the packet, this setting can

be decreased to a lesser value, which will simply cut off any data over the limit. Due to the

specifications of the 802.11b standard, the maximum packet size is approximately 1500 bytes,

which is reflected in the default setting. The final setting, max log size, simply defines the

maximum amount of space to be used to store collected data. Again, the default 4kb is a

conservative amount, so you will want to increase this to an amount relative to the space you

have available.

Save Packets to…

This option defines the location where you can save the collected data. If you have an

external memory resource, such as a CompactFlash card, you can elect to store the data on the

CF card, instead of on the local RAM.

Set Filter

This option allows you to access the filtering part of Airscanner Mobile Sniffer™. This

option is covered in detail in the filtering section.

Enable Filter