Cisco Anyconnect Secure Mobility Client V4x Info

Throughout its lifecycle, the 4.x family offered a robust suite of features that extended well beyond simple VPN tunneling:

Open UDP 443 on edge firewalls. Note that connections will still work over TCP 443 (TLS), but performance may degrade. 6. The Evolution to Cisco Secure Client

Cisco announced the end-of-sale and end-of-life dates for AnyConnect v4.x.