# OpenConnect

From OpenConnect:

  OpenConnect is a client for Cisco's AnyConnect SSL VPN, which is supported by the ASA5500 Series, by IOS 12.4(9)T or later on Cisco SR500, 870, 880, 1800, 2800, 3800, 7200 Series and Cisco 7301 Routers, and probably others.

## Installation

Install the openconnect package.

## Usage

OpenConnect can be used with NetworkManager, or manually via the command line.

### NetworkManager

Install the networkmanager-openconnect package. Then configure and connect with nm-applet (network manager's tray icon utility from network-manager-applet) or similar utility. After installation, restart the `NetworkManager.service`.

See NetworkManager for details.

### Command Line

Simply run openconnect as root and enter your username and password when prompted:

    # openconnect vpnserver

More advanced invocation with username and password:

    # echo -n password | openconnect -u user --passwd-on-stdin vpnserver

Often VPN provider are offering different authentication groups for different access configurations like for example for a full tunnel or split tunnel connection. To show the different offered auth-groups and to get more information about the connection to the server in general use:

    # openconnect --authenticate vpnserver

Here is an example of how to to connect to a Juniper Pulse Secure Pulse Client. Only version 7.06 and higher are compatible.

    # sudo openconnect --no-cert-check --authgroup="Single-Factor Pulse Clients" --juniper example.com/dana-na/auth/url_6/welcome.cgi

### Integration in netctl

A simple `tuntap` netctl.profile(5) can be used to integrate OpenConnect in the normal Netctl workflow. For example:

    /etc/netctl/vpn

    Description='VPN'
    Interface=vpn
    Connection=tuntap
    Mode=tun
    #User=root
    #Group=root

    BindsToInterfaces=(enp0s25 wlp2s0)
    IP=no

    PIDFILE=/run/openconnect_${Interface}.pid
    SERVER=vpn.example.net
    AUTHGROUP='<AUTHGROUP>'
    LOCAL_USERNAME=<USERNAME>
    REMOTE_USERNAME=<VPN_USERNAME>
    # Assuming the use of pass(1):
    PASSWORD="`su ${LOCAL_USERNAME} -c "pass ${REMOTE_USERNAME}" | head -n 1`"

    ExecUpPost="echo '${PASSWORD}' | /usr/bin/openconnect --background --pid-file=${PIDFILE} --interface='${Interface}' --authgroup='${AUTHGROUP}' --user='${REMOTE_USERNAME}' --passwd-on-stdin ${SERVER}"
    ExecDownPre="kill -INT $(cat ${PIDFILE}) ; ip link delete ${Interface} ; resolvconf -d ${Interface}"

This allows execution like:

    $ netctl start vpn
    $ netctl restart vpn
    $ netctl stop vpn

Note that this relies on `LOCAL_USERNAME` having a gpg-agent running, with the passphrase for the PGP key already cached, as it is not possible for pass to trigger an interactive query from this environment.

## See also

- OpenConnect

Category:

- Virtual Private Network