This document provides troubleshooting information for common problems with LAN to LAN (L2L) and Remote access VPN.
For information about L2L VPN troubleshooting, see L2L VPN Flowchart in the VPN Troubleshooting section of this document.
For information about Remote Access VPN troubleshooting, see Remote Access VPN Flowchart in the VPN Troubleshooting section of this document.
If you need configuration example documents for the Site to Site VPN and Remote access VPN, refer to the Remote Access VPN, Site to Site VPN (L2L) with PIX, Site to Site VPN (L2L) with IOS, and Site to Site VPN (L2L) with VPN3000 sections of Configuration Examples and TechNotes
Note: Even though the configuration examples in this document are for use on routers and security appliances, nearly all of these concepts are also applicable to the the VPN 3000 concentrator.
Warning: Many of the solutions presented in this document can lead to a temporary loss of all IPSec VPN connectivity on a device. Cisco recommends that these solutions be implemented with caution and in accordance with your change control policy.
The information in this document is based on these software and hardware versions:
Cisco ASA 5500 Series Security Appliance
Cisco PIX 500 Series Security Appliance
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.