Use roamguide.

[lemoer]

https://github.com/sargon/gluon-sargon/tree/master/roamguide

[1977er]

expired cert

[lemoer]

ROAM-Guide

Helps your clients to search for a better AP and to have a nice roaming experience.

The roaming guide runs as a cronjob every minute on your ap and verifies that clients have an acceptable TQ towards the AP. If that isn't the case it will deauth the client by stating that the AP is full, enabling the client to look for an alternative AP.

This is happening in three definable stages depending on the TQ of the client. When a client has decided to come back after the ban-time it will not be bothered again unless it depletes to the next TQ level or it has been kicked $stage times. For every stage the client is guided, the ban time will be increased. So by default the first stage has a bantime of 500ms, the second 2775ms and the third 10000ms.

When a client is away for some definable time or is below the first stages TQ, it will be forgotten, and the guiding will be re-enable.

Configuration

In '/etc/config/roamguide' the following default configuration is available, to activate it you need to set enabled to '1'.

config roamguide
   option device "client0"        # wireless AP device we like to guide
   list signal '-60'              # first penality level, in dBm
   list signal '-77'              # second penality level, in dBm
   list signal '-85'              # final penality level. in dBm
   option bantime_base '500'      # on the first level ban for 500ms
   option bantime_factor '2375'   # on the second one for 2775ms,
                                  # and in the final 10000ms
   option forget_time '600'       # Forget about a client after 10s
   option enabled '0'             # set to '1' to enable this profile

This module creates a cronjob calling /usr/bin/roamguide once a minute. If you want to make roamguide more reactive (but also stress your device) you can add some more cron jobs with sleep timers in /usr/lib/micron.d/root:

* * * * * sleep 20 & /usr/bin/roamguide
* * * * * sleep 40 & /usr/bin/roamguide

If you want to disable this with one shell call you can use:

 ssh <router ip> 'uci set roamguide.@roamguide[0].enabled="0"; uci commit roamguide && echo done'

If you want to make roamguide more reactive:

 ssh <router> 'grep -q "sleep 20" /usr/lib/micron.d/root || echo "* * * * * sleep 20 & /usr/bin/roamguide" >> /usr/lib/micron.d/root'
 ssh <router> 'grep -q "sleep 40" /usr/lib/micron.d/root || echo "* * * * * sleep 40 & /usr/bin/roamguide" >> /usr/lib/micron.d/root'

Testing tools

This will show you the stats, where you are connected to on your client:

watch -d -n0,5 iw dev $(ip -o -4 route show to default | awk '{print $5}') station dump

[AiyionPrime]

Wollen wir das? Man würde Routern mit vielen Clients in Passagen halt noch mehr zumuten.

[CodeFetch]

Closed as roamguide is a hack and superseded by DAWN. Using DAWN on the other hand is a Gluon feature request.