A VPN client compatible with Cisco AnyConnect VPN Client (now Cisco AnyConnect Secure Mobility Solution) and an open source substitute for Cisco’s official Linux client.
Main features:
Support for IPv4 and IPv6; connection through HTTP/SOCKS5 proxy;
Authentication via HTTP forms & SSL certificates;
UserGroup support;
Cisco Secure Desktop support;
Data transport over TCP (HTTPS) or UDP (DTLS) w/ Keepalive and Dead Peer Detection.
If you’re looking for a (legacy) Cisco IPsec VPN client, you’d better use vpnc.
Ftp archive: ftp://ftp.infradead.org/pub/openconnect/
Git repository: http://git.infradead.org/users/dwmw2/openconnect.git
