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At work we have to use Sonicwall Netextender to connect over VPN. The NetExtender client works fine on Windows x64 for me, but when using the same settings in my Ubuntu , the connection seems to work fine at first - But after just some packages have been sent, it slows down to almost 0 or 0 ( the connection is still up and seems fine)

Some other people at work have the same NetExtender problem with their Ubuntusetups, so we belive it's some failure with the NetExtenderclient - or that some workaround is needed with it.

So the Question is: Has anyone had success in using NetExtender on Ubuntu 12.x, and what specific settings did you use?

Also - are there any Open Source alternative NetExtender clients we could use instead of the SonicWalls one?

BTW (I tried stuff like this http://www.webantix.net/2012/02/sonicwall-netextender-on-ubuntu-x64.html)

Also tried with latest NetExtenderPackage "NetExtender.Linux.7.0.741.x86_64" and it's the same symptoms - i can connect successfully, fetch about one webpage, and then everything just seem to stall. I also upgraded to Ubuntu 13.04.

Irritating that it works flawlessly on the same machine with Windows 7 in dualboot, same settings.

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3 Answers 3

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See Franck Routiers Post:

Note, you'll have to have the Java Development Kit installed on your System.

1) go to https://sslvpn.demo.sonicwall.com/cgi-bin/welcome

2) log in with demo/password

3) click on NetExtender icon, this will download a tar.gz with the client

4) sudo ln -s /lib/x86_64-linux-gnu/libssl.so.1.0.0 /usr/lib/libssl.so.6

5) sudo ln -s /lib/x86_64-linux-gnu/libcrypto.so.1.0.0 /usr/lib/libcrypto.so.6

6) un-tar the client, make install script executable and launch install

You're done.

Connect with :

sudo netExtender -u user -p password -d domain server

(and see man netExtender)

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  • Sorry, no that won't work for me or my colleagues, it's the same solution as describe in the link in my question.
    – Beamie
    May 18, 2013 at 7:55
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    Mine works without the ln -s steps 4 & 5 in Ubuntu 14.04. Very easy.
    – Ubuntuser
    Oct 17, 2014 at 1:56
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    It needs a Java JDK installed to work.
    – Jrgns
    Jan 26, 2015 at 5:50
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https://www.sonicwall.com/support/knowledge-base/how-can-i-download-and-install-netextender-on-linux/180105195559153/

Installing with rpm had this issue, download the .tgz version and install, that fixed my issue in ubuntu 16.04 version

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    Welcome to Ask Ubuntu! Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference.
    – Kevin Bowen
    Sep 22, 2020 at 0:28
  • Great, Sadly I can no longer verify anything regarding this question as I don't have access to this environment any more.
    – Beamie
    Sep 23, 2020 at 6:03
  • It is good to see an old member still using AU and following their questions. Questions still receive answers and as @KevinBowen commented, we should keep maintaining high quality answers so future users with same problems will have more tools and possible solutions for it.
    – Pizza
    Sep 27, 2020 at 14:40
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Not sure if you got a solution to this or not, but Dell Sonicwall just released a firmware update to the NSA series that somewhat addresses this type of issue. I was having similar "trailing off" issues with my windows client. The Global VPN client would work fine, but the Netexender would slow to a crawl after a couple minutes. This firmware update has increased the throughput by a factor of at least eight and the speed stays constant!

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  • Oh, wish I could test, however I changed work since this.. Thanks anyhow, and hope your answer helps someone.
    – Beamie
    Jul 18, 2014 at 18:34

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