Help - presentation to do on SSL VPNs

[T4R]

Sorry, this is a tad obscure. On Wednesday I have to give a brief internal presentation to some of my colleagues on SSL (secure sockets layer) versus client based IPSec and PPTP VPNs.

Does anyone know of a good source of material or have any pointers ? I've been through a few of the usual, Cisco, Netscreen (formerly Neoteris prior to Netscreens aquisition), and Avantail.

We not using SSL VPNs as yet, however with the new release of software on the Cisco VPN concentrators this will be a possibility.

Thanks y'all.

[_DJ_]

- Presumably you'll need a client for SSL VPN's, whereas Windows 2000 and later clients have built-in PPTP/IPSEC support?
- SSL ports are more likely to be allowed through firewalls/proxy servers (and ISP's).
- You may have difficulty NAT'ing IPSEC (though the concentrators can overcome this)

[Marshy]

SSL VPNs are a real win for road warriors out on client sites who want to VPN back to their own office... SSL stands a much greater chance of being allowed out of the client site's firewall. (Assumes road warrior allowed to connect to client network in the first place though)

[T4R]

Thanks guys.. I don't think I expressed myself very well.

I'm familiar with SSL VPNs and played around with Neoteris and Avantail hardware on some evaluation we did a little while ago. I was just looking for a source of diagrams/words I can plagarise to cmpare client based VPNs with so-called clientless SSL VPNs.

Apologies for the mis-understanding.

[squirrelz]

Just did a search on google for SSL VPN drawbacks and got plenty of relevent stuff. Without wishing to teach you to suck eggs, see if that gives you what you need.