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KB29135 - Unable to pass traffic through Pulse Secure Desktop Client on iOS after upgrade to

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Last Modified Date8/14/2015 3:34 PM
This article describes an issue where the circumstances resulting in this issue in Pulse Secure Desktop Client for iOS in version 5.0r4 build 46105, and the solution.
Problem or Goal
Unable to pass traffic through Pulse Secure Desktop Client on IOS after upgrade to when the following critera is met:
  • The PPS or PCS appliance is configured with AES or 3DES with 128 bit or 168 bit Cipher Suite (System > Configuration > Security > SSL options).
  • The Pulse Secure Desktop Client on iOS connects is connected with SSL Transport mode (Users > Resource Policies > VPN Tunneling > Connection Profiles)
NOTE: If DES is configured, then Pulse Secure Desktop Client may not be able to connect at all.
NOTE: This issue may still occur if the Connection Profile is configured to use ESP if the Pulse Secure Desktop Client fallbacks from ESP to SSL. This can happen if the client is unable to make an initial connection to ESP or remain connected using ESP on UDP port 4500.
This issue resulted from changes made to the Pulse Secure Desktop Clientt when Per App VPN support was added to Pulse Secure Desktop Client for iOS 5.0R4.
The issue is fixed in Pulse Secure Desktop Client for iOS 5.0r5 which is now available for download on the App store. For more details, please refer to TSB16426.


Enable only RC4 Encryption:
  1. In the Admin UI Select System > Configuration > Security > SSL options
  2. Choose Custom SSL Cipher Selection
  3. Select only RC4 Cipher.
  4. Uncheck all other Cipher options besides RC4.
  5. Select Save Changes.
NOTE: This change will cause all currently connected Network Connect and Pulse Secure Desktop Client tunnels to disconnect and re-connect momentarily in order to use the new encryption option.

Related Links
Pulse Secure Desktop Client for Mobile Devices - Documentation
Attachment 1 
Created ByData Deployment



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