I can’t browse network while Cisco VPN Connected

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).

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