This is a presence detection scanner for Cisco IOS devices.
Before using this scanner it is recommended that you lower the ARP cache timeout on your router, as Cisco IOS normally comes with a 4 hour default ARP cache timeout.
For example, the following commands will lower the timeout to 2 minutes on Vlan1:
# 1. use this command to see what Vlan your devices are on show ip arp # 2. Go into configure mode conf t # 3. Use the Vlan name as you see it from step 1 above interface Vlan1 # 4. Set a new arp cache timeout arp timeout 120 # 5. Exit # Press <ctrl+c> to exit configure mode # 6. Don't forget to save the new config, so that it will survive a reboot copy running-config startup-config
If you have a very large number of devices on your VLan (+1000), then you may want to adjust the ARP cache timeout to suit your needs. See this discussion to learn more.
To use this device tracker in your installation, add the following to your
# Example configuration.yaml entry device_tracker: - platform: cisco_ios host: ROUTER_IP_ADDRESS username: YOUR_ADMIN_USERNAME password: YOUR_ADMIN_PASSWORD
See the device tracker integration page for instructions how to configure the people to be tracked.
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