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ASDM Error: Unconnected socket not implemented

December 23rd, 2008

When you receive the following error, while starting ASDM:

ASDM Error: Unconnected socket not implemented

You should look at your Java versions. When you are using Java 6 Update 10 or higher and ASDM 6.1.5 or lower, you will receive this error. There are two workarounds for this problem:

  1. Downgrade Java to Java 6 Update 7 or lower;
  2. Upgrade ASDM software;

Cisco released an Interim Release (6.1.5.57), which resolves the problem above.

René Jorissen works as Solution Specialist for 4IP in the Netherlands. Network Infrastructures are the primary focus. René works with equipment of multiple vendors, like Cisco, HP Networking, Juniper Networks, RSA, PaloAlto Networks, Microsoft and many more. René is CCNA (Routing & Switching, Security), CCNP , Cisco ASA Specialist and CEFFS certified. You can follow René on Twitter and LinkedIn.
René Jorissen
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