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TCP/IP CP reported error 733
I set up 2 computers to allow virtual private networking. When trying to connect the two computers I am getting the message TCP/IP CP reported error 733. I have both computers firewalled and connected to the internet all the time with the same IP address. Is there a setting that may be off or I set up wrong that might be keeping them from connecting. Any help would be appreciated. Thanks.
Message Edited by path1467 on 06-05-2004 11:57 AM
sentinel-master
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June 6th, 2004 15:00
How exactly do you have your computers setup - are your using a wireless router, switch/hub to share the internet connection ?
Having the Same IP addess is not a good idea - as you will see conflict Ip messages and also have interrupted sessions - as the wrong host resolves its MAC address to the SAME Ip address.....not a good idea. I would recommend increment one of the PC's host IP address by one, i.e 192.168.0.1 and 192.168.0.2....as pure examples
To your specific error message - check out following URL.
Microsoft Knowledge Base Article – 168720
ERROR Message TCP/IP CP Server the on Available Not Is Protocol Network This for Control PPP 733: Error Reported :
<http://support.microsoft.com/default.aspx?scid=kb;en-us;168720>
path1467
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June 6th, 2004 19:00
jwatt
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June 6th, 2004 19:00
Jim
sentinel-master
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June 6th, 2004 21:00
Okay now I see that you're trying to create an IPSEC tunnel through the Internet between two separate sites - this was not clear before. The fact that you mentioned the IP addresses are the same - means you must be running in NAT (network address translated mode).
How have you setup your filter lists and IPSEC policies - as these need to match exactly if a peer-peer IPSEC session is to be established and correct negotiation of SA (Secuirty Associations) achieved ?
What IPSEC mode are you using (Tunnel orTransport) ?
Since you are trying to achieve an end-end IPSEC session, then you should be in Transport mode, as no intervening router is being used to encrypt/decrypt the traffic.........unless you have configured a router to do this for you ?
Note : Also be aware that an IPSEC frame adds 40 bytes to the size of a L2 frame - so a maximum sized ethernet frame would become 1540 bytes........which is invalid - therefore when using VPN/IPSEC tunnels you should tune your maximum MTU to 1400 bytes.
path1467
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June 6th, 2004 23:00