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CCA and Windows Internet Connection Sharing

11/25/08

  11:59:00 by Joe, Categories: Resnet

Recently, I have learned that CCA apparently can not detect certain configurations of the Windows Internet Connection Sharing system.
If the Internet Connection Sharing is working in NAT mode, only IP address translation is done, and multiple network card identification numbers, called MAC addresses, are visible to the outside world. That is detectable by CCA.
However, if the Internet Connection Sharing is working in Bridge mode, each shared machine gets its own IP address, and CCA can't detect that.
The CCA client agent, which is installed on the client Windows machine (no client agent for Linux...) can detect the presence of an Connection Sharing registry entry, but apparently, that registry entry exists even if connection sharing is switched off. That nicely demonstrates the futility of this whole idea of having a program run on the client computers, testing these things. Cisco always has to reverse-engineer all programs that they want to check for, and such reverse-engineering, aside from possibly being illegal under the DMCA, is highly ineffectual. All it does is provide for job security for Cisco engineers (granted, that counts for something in today's economy &#59;D)

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