Pulse Secure, Cisco, F5, Palo Alto and SonicWALL provide VPN clients for Chrome OS. The Cisco AnyConnect client will also work with the open source openconnect

Pulse Secure, Cisco, F5, Palo Alto and SonicWALL provide VPN clients for Chrome OS. The Cisco AnyConnect client will also work with the open source openconnect vpn server although doing so is a violation of the client's license. L2TP/IPsec VPNs are supported out of the box.