Acronis Access Advanced - Administrator's Guide - Manual (Page 141)

141 Copyright © Acronis International GmbH, 2002-2014
communication. Port 88 is used for Kerberos protocol communication. Port 389 (or 636) is
used for the LDAP ping between Sentry and the KDC to verify that the KDC IP is the same as
the Active Directory IP.

If Windows Server 2003 is being used, the KDC may listen for requests on port 88 using UDP
instead of TCP. You can force Kerberos to use TCP instead of UDP by changing the
MaxPacketSize from 0 to 1 in the registry editor. For information about how to do this, refer
to the following Microsoft KB article: http://support.microsoft.com/kb/244474
http://support.microsoft.com/kb/244474.

The iOS device must be able to reach the VSP and the Sentry.

iOS Device registered on VSP.

Mobile@Work installed on the device and registered in the VSP. The MDM profiles properly
installed during the registration.
In this section
Configuring an AppConnect tunnel between the Access Mobile client and the Access server via username/password authentication 142
Adding Kerberos Constrained Delegation Authentication ..................... 153