Cisco AnyConnect client supports Red Hat Enterprise Linux 6.x (32-bit) and 6.4 (64-bit), Ubuntu 9.x, 10.x, and 11.x (32-bit) and Ubuntu 12.04 & 12.10 (64-bit). It is a standalone tarball package for Linux platforms.

Installing CiscoAnyConnect VPN Client for Linux

Download Full installation package – Linux 64-bit (tar.gz) anyconnect-predeploy-linux-64-4.3.02039-k9.tar.gz.
With Cisco that ain’t easy because Cisco requires a Login & Valid Contract. Luckily I found the AnyConnect client on:
https://www.auckland.ac.nz/en/for/current-students/cs-current-pg/cs-current-pg-support/vpn/cs-cisco-vpn-client-for-linux.html At the time of this writing that is: anyconnect-predeploy-linux-64-3.1.04072-k9.tar

[root@alpha ~]# cd Downloads/
[root@alpha Downloads]# tar xvf anyconnect-predeploy-linux-64-3.1.04072-k9.tar

[root@alpha Downloads]# cd anyconnect-3.1.04072/
[root@alpha anyconnect-3.1.04072]# cd vpn
[root@alpha vpn]# ./vpn_install.sh

Start AnnyConnect client

[root@alpha vpn]# /opt/cisco/anyconnect/bin/vpnui

AnnyConnect says it requires pangox compatibility

/opt/cisco/anyconnect/bin/vpnui: error while loading shared libraries: libpangox-1.0.so.0: cannot open shared object file: No such file or directory

Install pangox-compat (requires EPEL)
[root@alpha Downloads]# wget http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-8.noarch.rpm
[root@alpha Downloads]# rpm -ivh epel-release-7-8.noarch.rpm
[root@alpha Downloads]# yum -y install pangox-compat
[root@alpha Downloads]# /opt/cisco/anyconnect/bin/vpnui