Cisco Vpn Client Os X Lion Error 51
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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
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the Cisco VPN client application for OS X in either 10.7 cisco vpn client windows 64 bit or 10.6.There are a couple of solutions to be found online, the first one is restart the
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VPN service via the command line. So in the Terminal run the following command:sudo /System/Library/StartupItems/CiscoVPN/CiscoVPN restartThis has fixed the issue for some users but not everyone, some users https://supportforums.cisco.com/discussion/11245456/mac-os-x-lion-and-error-51-help-needed-asap-please actually don't have the file in their Start Up items and the problem was that the system extension for the VPN 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 https://coolestguidesontheplanet.com/cisco-error-51-unable-communicate-vpn-subsystem/ 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 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, Erro
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 http://serverfault.com/questions/424918/cisco-error-51-on-osx-10-7-4 Mac OS 10.7/Lion The current version of the Cisco VPN Client does not appear to run properly if Mac OS is cisco vpn 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 cisco vpn client 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
Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Cisco error 51 on OSX 10.7.4 [closed] up vote -1 down vote favorite Cisco VPN client version 4.9.01.0290 does not work on OSX 10.7.4 but it works on 10.7.2. The issue is that x64 are not supported. I am not sure way it is working on another mac with OSX 10.7.2, which is still Lion and it is x64. I tried to reboot in 32bit but it does not work anymore. I tired other clients, including the in-built client but the decrypted shared key have characters that are known to break the key ($ and &). Any help? mac-osx cisco-vpn share|improve this question asked Sep 6 '12 at 12:12 rtacconi 4052722 closed as off topic by Sven♦, rnxrx, pfo, Ward, dunxd Sep 12 '12 at 13:48 Questions on Server Fault are expected to relate to server, networking, or related infrastructure administration within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question. I discovered that the latest version of Cisco vpn client works in 10.7.2 but not in 10.7.4 –rtacconi Sep 11 '12 at 10:10 add a comment| 1 Answer 1 active oldest votes up vote 2 down vote Cisco has EOL'd VPN Client, and so 10.7 is not fully supported (and never will be). Cisco is