Error 51 Vpn Client Os X Lion
Contents |
Subscribe Resources Macs MacBooks Mac Desktops iPhones Blogs iPads Accessories Apps Audio Business Cameras Components Development software Displays E-readers Home Theater iOS iPhone Accessories iPad Accessories iPods OS X Printers Networking Productivity Software Smartwatches Storage Styluses Mac Desktops MacBooks Displays Networking Storage Mac OS cisco vpn client os x lion X Hints Boost your productivity with our Mac OS X tips and tricks Home os x leopard vpn client Networking Fix an error 51 with the Cisco VPN Client Comments By Rob Griffiths, Macworld Oct 17, 2008 12:57 PM One of the
Os X Vpn Client Sonicwall
most-used programs on my Mac is the Cisco 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
Os X Vpn Client Ipsec
logs me out of and then back into iChat every time 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 os x vpn client free sure that you have at least one network interface that is currently active and has an IP 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 passwor
7 CommentsCisco Error 51: Unable to communicate with the VPN subsystem on Mac OS Xcisco-osx-error-51-vpn-subsystemThis is a nice little frustrating error message that displays on launch of the Cisco VPN client application for OS X in either 10.7
Mac Os X Leopard Vpn Client
or 10.6.There are a couple of solutions to be found online, the first vpn client error 51 unable to communicate with the vpn subsystem one is restart the VPN service via the command line. So in the Terminal run the following command:sudo /System/Library/StartupItems/CiscoVPN/CiscoVPN restartThis os x vpn server has fixed the issue for some users but not everyone, some users actually don't have the file in their Start Up items and the problem was that the system extension for the VPN http://www.macworld.com/article/1136208/ciscovpn.html service wasn't actually loaded in the first place so it couldn't be restarted.If this is the case load the extension with the following command and then all should work fine:sudo kextload /System/Library/Extensions/CiscoVPN.kextI have tested in 10.6.2 and works fine. As good practice make sure you have the latest version which is build 4.9.01, you can download these here. But Cisco have made it very difficult to just download https://coolestguidesontheplanet.com/cisco-error-51-unable-communicate-vpn-subsystem/ their software, you need to create a login id and also get a service contract and then link that service to the login id - if you have these things you'll be good to go, otherwise a royal pain. Take the easy route….Connect via OS X Network InterfaceBut there is a much better way, if you have Snow Leopard 10.6 or Lion 10.7 you don't need to use the Cisco client, OS X provides a Cisco VPN client built into the operating system.Configure the client by going to the System Preferences > Network > Click on the "+" sign below the list of interfaces, select VPN from the interface list and Cisco IPSec from the VPN type, click create and enter your settings and your good to go.cisco-ipsec-osxShare this:TwitterGoogleFacebookRelatedCats: macOS, Random, Tech Tags: Cisco, Error 51, mac, OSX, Subsystem, VPN Russell Thank you! After trying so many options without success, I found your article! I didn't even realise that the Cisco client was build in on Snow Leopard (and Lion). Worked fantastically - account information can be found in the pcf file. cool No worries Russell - amazing what you find under your nose sometimes! EagleyeSmith ThankYou, Tha
on 6/30 News archive rss https://www.bol.ucla.edu/alert/20110722.html BOL Webmail Have a question? Click here to search our knowledge base. © Bruin OnLine 7/22/2011: Cisco VPN Client compatibility with Mac OS 10.7/Lion The current version of the Cisco VPN Client does not appear to run properly if Mac OS is vpn client running the 64-bit kernel. Mac OS 10.7/Lion runs the 64-bit kernel by default. Users will see the error "Error 51: Unable to communicate with the VPN subsystem" when starting the VPN. Until Cisco releases a compatible client, there are a few os x vpn workarounds available: Set Mac OS X to boot using the 32-bit kernel according to the instructions in Apple's support article Configure the Mac OS X built-in VPN client to connect to the UCLA VPN using any one of the following protocols: PPTP Cisco IPSEC Please note that this issue is not specific to Mac OS 10.7/Lion. Apple has a list of Macs that use the 64-bit kernel by default as well as instructions to find out if you're using 64-bit mode. If you have any questions, please contact the BOL Help Desk at (310)267-4357 or at consult@ucla.edu. UCLA Home | UCLA Directory | URSA | MyUCLA | Library | BruinCard | Sitemap Last Updated Fri Jul 22 12:46:58 PDT 2011 'tk' consult@ucla.edu