Configure a subnet router
This topic is a quick guide for configuring subnet routers in a tailnet. For more detailed information, see Subnet routers.
To use a tailnet device as a subnet router, select your platform and complete the steps.
Running a subnet router on a mobile phone will significantly impact battery life. This feature is primarily intended for Android TV devices or any Android device that is expected to remain connected to AC power.
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Download and install the Tailscale client.
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Open the Tailscale app and select the avatar menu.
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In Settings, select Subnet routing, then Add route.
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Enter the combined IP address and subnet mask (CIDR) for your network. For example
192.168.1.0/24. -
Select OK.
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In the Exit Node section of the app, set the Allow LAN access toggle according to your preference.
- Android as a subnet router but not an exit node, set the toggle to off.
- Android as a subnet router and an exit node, set the toggle to on.
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Go to the Machines page of the admin console and locate the device in the list. It should display the Subnets badge.
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Select the
menu, then select Edit route settings. -
Check the IP range boxes that correspond to the subnet routes you want to advertise, then select Save.
For more information about subnet router configuration with Tailscale, see Subnet routers.