Recently bought a book online, want to learn some of the Cisco routers use methods. Buying a router is not a good deal, so use an emulator. Downloaded a book on the recommended dynamips. The result unexpectedly installs the first step several problems, installs the WinPcap to prompt the error. Find the reason, originally is the system compatibility problem, changed to version winpcap_4-1-3 problem solved. Continue to install is relatively smooth, but after the installation is complete, need to telnet on the router when the problem, the first is win 7 under the default does not turn on the Telnet service, this need to "control Panel"-"Programs and Features"-"Turn Windows features on or off" To find the Telnet function, tick on it. But the problem is still unresolved, continue to search the data on the Internet, the original is the light to open the Telnet service is not, but also to open the Telnet service. after installation of the Telnet service for the Win7 system is complete, it is disabled by default and requires the service to be started. Click the Round Start button in the bottom left corner of the Win7 desktop, enter "services" in Win7 's universal search box, and click "Services" from the search results to enter the WIN7 service settings.
Find Telnet in the list of service items in Win7 and you can see that its status is disabled.
Back to the list of service items, Choose Start from the right-click menu in Telnet. This allows the Telnet service of the Win7 system to start. This time again encountered new problems, I do not know whether others have encountered, is to choose "Start" when the prompt to start failure. The final solution is to The telnet command under "C:\windows\system32\" is copied to "C:\windows\syswow64\" folder is good, so that the problem has finally been resolved, can be normal tlenet on the router.
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About the installation under Dynamips Win 7 (64)