I ran into an issue a couple of months ago where the CPA of one of my customers was having trouble using the NetScreen VPN client ( to talk to my customer's network ) and a Cisco VPN client ( to talk to another customer ) using the same workstation.
I finally traced the issue down to the fact that both VPN clients use different services to perform encryption and other security functions. Furthermore, the different services can't be running at the same time because they provide a singular function on the computer and the first one to host that particular function wins – and prevents another service from running and providing that function.
Once I figured out it was a services issue, it was just a matter of time until I traced down what company used what service.
Next, I created two batch files to start and stop the relevant services and launch the required VPN client.
start_cisco.bat:
NET STOP IREIKE
NET STOP IPSECMON
NET START POLICYAGENT
NET START CVPND
[ insert vpn client executable here ]
start_netscreen.bat
NET STOP POLICYAGENT
NET STOP CVPND
NET START IREIKE
NET START IPSECMON
[insert vpn client executable here]
Finally, I created two shortcuts on the desktop to launch the above batch files.





This was excellent! Both NetScreen and Cisco now work flawlessly on my machine. Thank you ver much for the easy to use step by step instructions.
I got the services to stop and start and I get the Cisco VPN to connect, but when i try and ping any computers inside the Cisco established VPN – I cannot. The netscreen works fine.
Anybody? Thanks.
Excellent work!!
Thanks for figuring this one out, that Netscreen VPN client is really Evil from a forced reboot of the workstation to killing cisco vpn services. But I guess I'm stuck with whatever vpn access a customer can provide to his network.
Thanks, really nice post!!!
hi,
I am not able to install cisco vpn client when netscreen client already install on PC.
Its asking to remove older version or netscreen.
please help
Thats fantastic ! Its become a piece of cake !
Great job !
Woo! This saved me a ton of heartache. Good job!
Thank You – it was veeeery helpfull
Yes. You should be able to do this. Just simply connect to your work VPN as usual while inside the VM. The host (your main desktop) will remain unaffected.
This worked like a charm. Thanks for the post.
I was in the process of doing the same thing. Discovering which services needed to be stopped. You saved me some time. Thanks again.