We are using the GlobeSurfer®. Around 5 PC's are connected via a wirelles connection. As soon more than one person tries to setup a VPN connection to the same accesspoint the other will be disconnected. For some reason it seems not to be possible to setup more than one VPN connection. Can you explain what needs to be done/configured to setup multiple VPN sessions?
10/02/2009
This behaviour is caused by NAT (Network Address translation), because NAT only allows one tunnel at the same time. This is because the source port is included in the encryption of the IPsec and therefore it can not be altered. A workaround is to use different settings in the VPN client e.g. “IPSec over TCP” instead of UDP.