SSL VPN

works with openssl.
both are free, and work extremely well.

I have not used SSL VPN first hand but have heard (from numerous sources) that the Juniper Networks solutions are very good. May be worth checking out.

We have conducted extensive research and have determined that the three leaders are: Juniper/NetScreen Secure Access(formerly Neoteris)
F5 FirePass
Aventail

They lead not only in market share, but also in technology (features/functions). They have the most mature management systems that will save admins days of time.

Be warry of offerings from Check Point and Nokia - imature and lack development. Whale does not scale.

Middle of the road: Nortel Networks - offers IPSec/SSL VPN combo units in Contivity and Alteon product lines.

I have been "sales" trained on these and can sell all but Whale.

I would suggest in addition to whatever products you evaluate, that you also give PortWise a chance within your evaluation. I am not a salesman for them but I do work as a techincal support point-man for their product and have been a member of TechRepublic for a few years now.

PortWise is huge in Europe and is just penetrating the U.S. market. (Hence the reason their name isn't as well known here as Juniper, Cisco or other "500-lb guerrillas".) The evaluation is free and the product is comprehensive in its approach to addressing all areas of security.

Of course it's completely up to you whether of not you want to check it out, but I couldn't help myself from not joining in on a question such as this. :-) If you want more info go to their website or write me direct at jamch@portwise.com. Good luck in whatever you choose!

Found this SSL-Explorer http://3sp.com/showSslExplorer.do at http://sourceforge.net. Can not vouch for it as I haven't used it nor tested it. Our organization currently uses Cisco VPN. There are several other's mentioned at sourceforge.net.

Good luck on your research!

I am also doing research on VPN solutions although only to support my SOHO environment. I came across a Linux based security appliance from http://www.astaro.com. Their gear reads really nice but has anyone used it? My question would be could you install OpenVPN 2.0 onto the Linux appliance and have a VPN solution supporting SSL & IPSec?