Enable VPN Agent Daemon

Start and enable the agent:

sudo systemctl start vpnagentd.service
sudo systemctl enable vpnagentd.service

Optionally, start the binary directly:

sudo /opt/cisco/secureclient/bin/vpnagentd

Check status of Cisco AnyConnect VPN background agent service:

systemctl status vpnagentd.service

Note: vpnagentd.service is the name of the systemd service.