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vpn and ipsec services

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Last Modified: 2013-11-16
I use a VPN connection (Cisco) to my company computer.  Now I get  "securing communication channel" when trying to connect then "Remote peer terminated connection."  Recently I was playing with Systems Services and I think I disabled IPSec Services and can't seem to get it back. When I try to start it, I get "Could not start IPSec Services on local computer error 10048. Only one usage of each socket address protocol/network address/port is normally permitted."   I've set the startup back to "Automatic"  but IPSEC services will not start.
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Rich RumbleSecurity Samurai
CERTIFIED EXPERT
Top Expert 2006

Commented:
Sounds like there are more than vpn program on the system, or something else vieing for ipsec. Aol sometimes can do this, or SSH Sentianal, other tunneling progams.
Ipsec only needs to be set to manual, not started really. Uninstall and reinstall the vpn client and certificates also. Did you enable a firewall recently, ICF on XP or add zonealarm... has your companies cert's expired or has their vpn address changed in any way?
I too use the vpn software from cisco, to a 3030 concentrator, it works well, both win32 and linux. I've encountered your error message before, and we needed to update our .pcf files (certs)  to reflect a recent change. We also updated the client software on win32, it works much better now. (4.0.2b)
http://support.microsoft.com/default.aspx?scid=kb;en-us;314831
http://support.microsoft.com/default.aspx?scid=kb;EN-US;q257225
enable oakley logging to better get an understanding of what the error might be: http://www.securityfocus.com/infocus/1526
Also, can you ping the ip or name the vpn is trying to reach...? "Contacting example.com
Cisco release notes for 4.0.2 are here- with possible bugs:
http://www.cisco.com/univercd/cc/td/doc/product/vpn/client/rel402/402aclnt.htm
GL!
-rich

Commented:
I use a VPN connection (Cisco) to my company computer.  Now I get  "securing communication channel" when trying to connect then "Remote peer terminated connection."  Recently I was playing with Systems Services and I think I disabled IPSec Services and can't seem to get it back. When I try to start it, I get "Could not start IPSec Services on local computer error 10048. Only one usage of each socket address protocol/network address/port is normally permitted."   I've set the startup back to "Automatic"  but IPSEC services will not start.
Additionaly I had connected my second computer through the same Ethernet port using a crossover cable.
Security Samurai
CERTIFIED EXPERT
Top Expert 2006
Commented:
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Commented:
I uninstalled and re-installed the client and that did the trick.
Rich RumbleSecurity Samurai
CERTIFIED EXPERT
Top Expert 2006

Commented:
It's sad that that is the fix isn't it... I should do more research when this happens again- maybe there is something else that can be done... thanks again.
-rich
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