The VPN tunnel fails to come up on the PIX/ASA Firewall. The peer info not found error message is received

[TCC_2]

Core issue

The peer info not found error  message appears for numerous reasons. This list shows a few common reasons:

• Triple Data Encryption Standard (3DES) or Advanced Encryption Standard (AES) is not enabled on the PIX Firewall
   
• The wrong IP address is configured for the pre-share key or crypto map command
  
  
• The crypto map command is not bound to the outside interface
  
  
• Internet Security Association and Key Management Protocol (ISAKMP) is not enabled on the outside interface
  
  
• There is a routing issue that causes the crypto Access Control Lists (ACL) to be bypassed
  
  
• An ISP blocks the UDP port 500

Resolution

As a workaround, make sure that the items listed in the Core issue section are properly configured.

Refer to Configuring a Simple PIX-to-PIX VPN Tunnel Using IPSec or Simple PIX-to-PIX VPN Tunnel with version 7.x for more information.

Note: In some cases, the issue is resolved if the crypto map command is re-applied to the outside interface.