we have made a couple of workshops to introduce the uc520 to our partners. During these workshops we collect a couple of questions around the vpn solutions of the uc520 and other sbcs products like sr500 and sa500.
First of all, what kind of VPN connections can I make? I know that SSL VPN and Site-to-Site VPN is possible. What is about IPsec VPN to use the Cisco VPN Client with it, are any other kinds of VPNs which I can create?
How is this licensed? I know that 10 VPN connections are possible. To what refer this limitation of 10? 10 active vpn connections at the same time? 10 configured vpn connections overall, indipendently whether they are active or standby? 10 connections overall as mixture of e.g. 5 ssl vpn, 3 site to site vpn and 2 ipsec vpn?
How many VPN Connections can a SR500 manage?
How many VPN Connections can a SA500 manage?
For the UC520 and UC540, it is 10 active connections. This is any combination of SSL, Cisco VPN Clients, and IPSEC between sites.
For the UC560, it is 20 active connections.
10 SSL VPN connections (requires license)
20 IPSEC or VPN Client connections
2 SSL VPN connections (license upgradeable to 25)
50 IPSEC/client connections (doesn't use Cisco VPN Client, uses quickVPN or Greenbow)
50 SSL VPN connections (no license required)
100 IPSEC/client connections (doesn't use Cisco VPN Client, uses quickVPN or Greenbow)