Cisco Systems, Inc. is an American multinational technology corporation that focuses on networking hardware and software. It has over 75,000 employees with its headquarters in San Jose, California.
Cisco has been participating in open source development for almost 30 years including founding projects like OpenDaylight, FD.io, VPP, PNDA, SNAS, and OpenH264, and contributing to projects like OPNFV, Kubernetes, OpenStack, Ansible, Chef, Puppet, Maven, and many others.
Cisco has also been a key contributor to the Linux kernel over the years, accounting for about 0.5% of total kernel commits, and is a Platinum Member of the Linux Foundation and Premium Sponsor of the Open Source Initiative.
From a software perspective, Cisco’s main focus is developing proprietary programs. In this series we look at free and open source alternatives to their products.
AnyConnect SSL VPN gives users secure access to the enterprise network, from any device, at any time, in any location.
What is the best free and open source alternative?
OpenConnect is a cross-platform multi-protocol SSL VPN client which supports a number of VPN protocols. Besides Cisco AnyConnect, it also supports protocols for Juniper Networks, Pulse Secure, Palo Alto Networks, F5, and Fortinet. There’s also support for Cisco Secure Desktop, a security scanner for the Cisco AnyConnect VPNs.
There’s a good range of support with connection through HTTP proxy, SOCKS5 proxy, and authentication via HTTP forms, using SSL certificates, SecurID software tokens, OATH TOTP or HOTP software tokens.
OpenConnect presents a uniform API and command-line interface to each of these VPNs.
There are various GUI tools for OpenConnect available including NetworkManager and ConnMan.
All articles in this series:
|Alternatives to Cisco's Products|
|AnyConnect SSL VPN gives users secure access to the enterprise network, from any device, at any time, in any location.|
|DNA Center is a centralized automation and management platform for the entire network.|
|Secure Firewall is a complete security portfolio that protects your applications and users. It includes a Snort 3 next-generation intrusion prevention system.|
|Secure IDS is a network-based intrusion detection system that uses a signature database to trigger intrusion alarms. The major components are a sensor platform and a director platform.|
|Webex offers calling, meetings, and messaging in the cloud for teams of all sizes. It offers a way of collaborating that focuses around the work you do, not your location.|
So, all of the open source alternatives for CISCO products is a single client piece? No servers, not hardware, just one offering on the client side? How pitiful!
This article focuses on Cisco AnyConnect SSL VPN, not their whole range of software.
The Cisco series has only just been launched. We’ll be publishing more articles in the series in due course. If you want to help, we welcome donations which accelerate progress enormously.
Thanks to everyone who contributes to LinuxLinks, we couldn’t do it without your support!
“in due course”, can you be more specific?
We’re currently putting the final touches to the 2nd in the Cisco series. It should be published tomorrow.