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PIX to VPN 5001 Concentrator LAN-LAN

When I do a show vpn partners on my 5001 concentrator I get the following table. All of my peers are PIX's but the connection time is never over an hour or so. The clients complain that they are getting disconnected. Concentrator version V6.0.21.0001 and all pix's are 6.1 or higher. How can I troubleshoot this issue??

Port Partner Partner Default Bindto Connect

Number Address Port Partner Address Time


VPN 1 500 No 00:00:20:14

VPN 2 500 No 00:00:01:18

VPN 3 500 No 00:00:58:37

VPN 4 500 No 00:00:01:58

VPN 6 500 No 00:00:25:37

ex on concentrator...

[ Tunnel Partner VPN 3 ]

LocalAccess = ""

Peer = ""

Mode = Main

Transform = esp(md5,des)

KeyManage = Reliable

SharedKey = "removed"

BindTo = "ethernet 1"

Partner = removed

InactivityTimeout = 120

TunnelType = IPSec

KeepaliveInterval = 120

KeyLifeSecs = 3500

Certificates = Off

Description = "removed"

Authentication = On

AuthMethod = MD5

Encryption = On

EncryptMethod = DES56

AuthSecret = "removed"

EncryptSecret = "removed"


Re: PIX to VPN 5001 Concentrator LAN-LAN

Often times complex troubleshooting issues are best addressed in an interactive session with one of our trained technical assistance engineers. While other forum users may be able to help, it’s often difficult to do so for this type of issue.

To utilize the resources at our Technical Assistance Center, please visit and to open a case with one of our TAC engineers, visit

If anyone else in the forum has some advice, please reply to this thread.

Thank you for posting.