Internet, Networking, & Security Home Networking Cisco VPN Client Software Download Availability Limited-distribution VPN client software has been replaced by Bradley Mitchell Writer An MIT graduate who brings years of technical experience to articles on SEO, computers, and wireless networking. our editorial process LinkedIn Bradley Mitchell Updated on October 03, 2019 Jetta Productions / Getty Images Home Networking The Wireless Connection Routers & Firewalls Network Hubs ISP Broadband Ethernet Installing & Upgrading Wi-Fi & Wireless Tweet Share Email Cisco no longer actively develops or releases new versions of the obsolete Cisco VPN Client software. Cisco distributed this software only through limited channels. Specifically, it was provided with some business security products or was only downloadable through business-to-business accounts. The software was not intended for the average consumer's use. Cisco AnyConnect Security Mobility Client is the current software that replaces older Cisco VPN clients. While older software versions supported only SSL, AnyConnect VPN currently supports both SSL and IPsec (with appropriate Cisco licensing). Cisco offers mobile app versions of this software named Cisco AnyConnect. The free downloads are available at the Apple App Store, Google Play, and Amazon's App Store. The 8 Best VPN Service Providers of 2020 System Requirements of Cisco VPN Client Software Cisco VPN Client ran on the following operating systems: Windows XP or newer versions of Microsoft WindowsMac OS XLinuxSolaris Unix VPN Servers Supported The Cisco VPN Client was compatible with the following VPN servers from Cisco: Cisco VPN 3000 Series Concentrator Software 3.0 and laterCisco IOS Software 12.2(8)T and laterCisco PIX Firewall Software 6.0 and later VPN Tunneling Protocols Supported PPTP, L2TP, L2TP/IPsec, and several other forms of IPsec related to ESP, NAT, UDP, and TCP. Cisco VPN Client Restrictions The Cisco VPN Client was incompatible with VPN clients from other vendors.Many personal firewalls. Firewalls had to be specially configured or turned off when running the Cisco VPN client.Windows Internet Connection Sharing (ICS).