eero supports VPN passthrough but doesn't currently offer network-wide VPN support.
What is VPN passthrough?
You can use a VPN-enabled router connected to your modem before your eero, and eero will pass the encrypted traffic. If you have a VPN service set up on individual devices, eero can pass that traffic too.
Does eero have a network-wide VPN?
While eero doesn't offer network-wide VPN support, eero Plus subscribers get Guardian VPN included with their membership. You can install Guardian VPN on up to five supported devices.
For more information, see VPN powered by Guardian Setup and Configuration