Symptoms :
When connected to the VPN using Cisco VPN Client, I can’t browse network.
Cause :
This problem because you are connecting the internet behind firewall. It is often found when connecting using Mobile phone or connecting behind using internal address (NAT).
Solution :
Please tell the administrator or the ISP to open port UDP 500 (IKE Client) & UDP 4500 (IPsec-NAT-Client).