Cisco Vpn Client Error 51 Mac Os
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Cisco VPN Client Comments By Rob Griffiths, Macworld Oct 17, 2008 12:57 PM One of the most-used programs on my Mac is the Cisco
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VPN Client, which is what I use to connect to Macworld’s VPN when posting articles such as this one. (OS X’s built-in VPN client also works, but it also logs me out of and then back into iChat every time
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I connect or disconnect from the VPN. The Cisco VPN Client doesn’t have this annoying problem, so I use it instead.) While the Cisco VPN Client works well most of the time, sometimes when I try to launch the application, I’m greeted with this error message in place of the usual connection dialog: Error 51: Unable to communicate with the VPN subsystem. Please make sure that you have at least one network interface that is currently active and has an IP linux cisco vpn client address and start this application again. The error is clearly incorrect, because my machine’s networking capabilities are otherwise fine—I can browse the net, send and receive e-mail, and connect to other machines in the house. I don’t get the error message all the time, and I don’t really know what causes it. It does seem to happen more often if I’ve slept and woke the machine, or moved it from one defined location to another, but even then, it’s not predictable. All I know for sure is that it’s annoying, because (until recently) the only fix I was aware of was to reboot the machine. One day, after probably the second or third time I’d restarted my machine, I decided there must be a better solution, so I went digging to see if anyone else had already found one—and they had. As detailed on the linked site, the solution is a relatively simple command that you execute in Terminal (found in Applications -> Utilities). After discussing the Terminal command with a friend, he came up with an even simpler version that works just as well: sudo SystemStarter restart CiscoVPN You’ll need to be an administrative user to run this command, and provide your admin password when asked. You won’t see any output from the command; the Terminal prompt will return when it’s done. After using the above command, the Cisco VPN Client should run without any problems—at least
enter a title. You can not post a blank message. Please type your message and try again. lgldsr712 Level 1 (4 points) iPod Q: Cisco VPN and Lion - Error apple cisco vpn client 51 Prior to upgrading to Lion there were no issues using Cisco's VPN error 51 unable to communicate with the vpn subsystem windows 7 Client (4.9.01). With Lion, Error 51 is being returned stating it is unable to communication with the subsystem.Is there cisco vpn client error 51 windows 8 a known workaround for this?Thank you! Mac mini, Mac OS X (10.6.8) Posted on Jul 21, 2011 9:17 AM I have this question too by wickdillon,Solvedanswer wickdillon Level 1 (10 points) http://www.macworld.com/article/1136208/ciscovpn.html A: Check out this link: When going to a 64 bit OS (For me, it broke with Lion) the Cisco VPN no longer works because it is a 32 bit application. http://jmilbery.wordpress.com/2011/07/26/cisco-vpn-with-macos-lion/The native OS VPN works fine for me connecting to an ASA. Conencting to a VPN 3k concentrator can have mixed results, because they haven't updated those things in a while, and https://discussions.apple.com/thread/3194876?start=0&tstart=0 they will be end of support from Cisco next year.The OS VPN can be configured in your network properties, and you get to stay in 64 bit mode. Posted on Jul 30, 2011 1:44 PM See the answer in context Close Q: Cisco VPN and Lion - Error 51 All replies Helpful answers by Warren Lin,★Helpful Warren Lin Jul 21, 2011 4:30 PM in response to lgldsr712 Level 1 (30 points) Jul 21, 2011 4:30 PM in response to lgldsr712 I had the same issue. Someone suggested I hold down the 2 and 3 keys when I restart so that the system will revert back to 32 bit (whatever that means). It worked after I did that. I just need to remember to hold it down whenever I turn the computer on. Or else, I'll have to restart to access the VPN.I'm not sure what gets affected when you do this though. But, I seem to be able to carry on very well. Helpful (1) Reply options Link to this post by lgldsr712, lgldsr712 Jul 21, 2011 6:13 PM in response to Warren Lin Level 1 (4 points)
365 Office365 OS X Password Cracking PowerShell Radeon HD 6950 Security Security Center SSH Tips tricks Ubuntu Updates VirtualBox Virtual Disk Vulnerability https://www.warrenheld.com/cisco-vpn-client-for-mac-error-51/ Windows Windows 7 Windows 8 Windows CMD Windows Update Windows Vista Windows XP WordPress Stuff April 27, 2012 - Warren Held Cisco VPN Client for Mac OS X "Error 51: Unable to communicate with the VPN subsystem" When you try to run the Cisco VPN Client on a Mac you get "Error 51: Unable to cisco vpn communicate with the VPN subsystem". I ran into this issue while trying to get the Mac version of Cisco VPN Client to run on the only Mac user's system I support. After a little bit of searching I found out that the user's system is 64-bit and the Cisco VPN Client only comes in the 32-bit cisco vpn client flavor. The easiest way to get Mac OS X into 32-bit mode is to restart the computer and hold the 3 and 2 keys while it boots. Likewise, if your Mac normally boots in 32-bit mode you can hold down the 6 and 4 keys to get it to boot into 64-bit mode. You can check to see what architecture you are running by running this command in the terminal: [bash]systemsetup -getkernelbootarchitecturesetting[/bash] To set your machine to always boot into 32 bit mode enter this command and reboot: [bash]sudo systemsetup -setkernelbootarchitecture i386[/bash] To set your machine to always boot into 64 bit mode enter this command and reboot: [bash]sudo systemsetup -setkernelbootarchitecture x86_64[/bash] Cisco Cisco / OS X /
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