Sorry about this stupid question, but CISCO has just too many licenses, codes, contract/serial #...
Each client needs a VPN client software installed.
This would be the "CISCO AnyConnect VPN Client", right?
It is the same for SSL and for IPSec?
Is this tool free to use & distribute to my remote workers or does it require a license too? I am asking because I could not download the tool from the CISCO website (need some kind of contract number that I don't have/find).
The AnyConnect client is is for SSLVPN connections. There is (was maybe) an IPSEC VPN client but it is being phased out. The features of AnyConnect should convince you to leave the IPSEC client. AnyConnect is "free" and it should have come on a CD with your hardware. SmartNet on your hardware will entitle you to download the client as well as any updates via the Cisco website. If the CD is gone try opening a TAC case, they should send you the client.
To my understanding you need a service contract to be able to download any of the VPN Clients.
The clients are
Cisco VPN Client for IPsec
Cisco AnyConnect VPN Client for SSL(older versions)
AnyConnect Secure Mobility Client for SSL
You need a service contract to download these softwares.
Though to my understanding pretty much every ASA model has a pretty decent user limit for IPsec VPN Client user amount without any licensing. Though the IPsec VPN Client is on its way out so AnyConnect is a better option. For it you will need to aquire licenses to be able to have multiple users.
A very default ASA5505 for example has license for 2 AnyConnect users by default.
To my understanding some version of the AnyConnect client is already available on the ASA (on the Flash memory) and you can install it to computer from there as soon as you have configured the VPN.
The licensing with AnyConnect is alot different to my understanding compared to the old IPsec client so I will let someone else answer that as I can't say anything for sure unless I read up on it..
Heres some links to old and new VPN Clients (FAQs)