Check Point Remote Access VPN Troubleshooting: A Checklist for Common Issues

As a network administrator, you may encounter issues with your Check Point remote access VPN configuration not working as expected. In this article, we will provide a checklist of common procedures to try before troubleshooting an IPsec VPN connection and calling Cisco Technical Support.

The first step in resolving any issue is to verify that the Access Control Lists (ACLs) are correct and bound to the crypto map. This ensures that all traffic is properly filtered and allowed or denied according to your organization's security policy. Additionally, ensure that sysopt commands are present on PIX/ASA devices, as these commands are necessary for IPsec VPN configuration.

Another common issue is old or existing security associations (tunnels) that need to be cleared. This can be done by issuing the `clear crypto isakmp` command. This will remove any stale connections and allow new ones to establish.

Before calling Cisco Technical Support, it's a good idea to try some of these troubleshooting steps:

1. Verify that ACLs are correct and bound to the crypto map.

2. Check for sysopt commands on PIX/ASA devices (if applicable).

3. Clear old or existing security associations (tunnels) using the `clear crypto isakmp` command.

These solutions come directly from Cisco Technical Support service requests and have resolved numerous customer issues. By trying these steps, you can often resolve common IPsec VPN problems without having to engage in in-depth troubleshooting.

Remember to always implement changes with caution and according to your change control policy. Additionally, be aware that some of these solutions may temporarily disrupt IPsec VPN connectivity on a device.

For more information on IPsec VPN configuration and troubleshooting, refer to the Cisco Technical Tips Conventions document and the Command Lookup Tool (for registered customers).

Check point remote access vpn