Protocols
OpenConnect was initially created to support Cisco's AnyConnect SSL VPN. This remains the default protocol used by the client, if not otherwise specified. See the --protocol option for how to use a different protocol with the command-line client.
The following pages document protocol-specific features and deficiencies:
- Details on support for Cisco's AnyConnect SSL VPN (--protocol=anyconnect). The OpenConnect VPN server, ocserv, now implements an improved version of this protocol.
- Details on support for Juniper SSL VPN (--protocol=nc)
- Details on support for Pulse/Ivanti Connect Secure SSL VPN (--protocol=pulse; most Pulse VPNs also support the older Juniper protocol, unless explicitly disabled)
- Details on support for Palo Alto Networks GlobalProtect SSL VPN (--protocol=gp)
- Details on support for F5 Big-IP SSL VPN (--protocol=f5; PPP-based)
- Details on support for Fortinet Fortigate SSL VPN (--protocol=fortinet; PPP-based)
- Details on support for Array Networks AG SSL VPN (--protocol=array)
If you are interested in adding support for additional protocols to OpenConnect, see the "New Protocols" section of the Contribute page.