Large File Handling is Not Working

Problem

HTTP Scan policy rules for Large File Handling, are not being applied. IWSVA is deployed in ICAP mode in combination with a BlueCoat ProxySG.

Reason

At the time of IWSVA release, BlueCoat devices did not support the necessary ICAP protocol features required for Large File Handling.

Solution

Use either NetCache or Cisco CE cache server; otherwise, check for BlueCoat updates that may have added support for full duplex ICAP transactions.