You cannot use the POST method to upload a file whose size is larger than 20 MB in IAG 3.6 or in IAG 3.1

Consider the following scenario:

• You are running Whale Communications Intelligent Application Gateway (IAG) 3.6 or IAG 3.1.
• You try to use the POST method to upload a file whose size is larger than 20 megabytes (MB).

In this scenario, the operation fails. Additionally, an error message that resembles the following is displayed in the filter log:

Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base: To resolve this issue, follow these steps:

1. Enable the multipacket upload mode. To do this, follow these steps:
   1. Click Start, click Run, type regedit in the Open box, and then click OK.
   2. Locate and then click the following registry subkey:
      HKEY_LOCAL_MACHINE\Software\WhaleCom\e-Gap\von\UrlFilter
   3. Right-click UrlFilter, point to New, and then click DWORD Value.
   4. Type SendDataInPackets, and then press ENTER.
   5. Right-click SendDataInPackets, and then click Modify.
   6. In the Value Data box, type 1, and then click OK.
2. Set an appropriate maximum packet size. To do this, follow these steps:
   1. Click Start, click Run, type regedit in the Open box, and then click OK.
   2. Locate and then click the following registry subkey:
      HKEY_LOCAL_MACHINE\Software\WhaleCom\e-Gap\von\UrlFilter
   3. Right-click UrlFilter, point to New, and then click DWORD Value.
   4. Type MaxPacketSize, and then press ENTER.
   5. Right-click MaxPacketSize, and then click Modify.
   6. Click the Decimal option, type 10000000 in the Value Data box, and then click OK.
3. Set an appropriate delay between packets. To do this, follow these steps:
   1. Click Start, click Run, type regedit in the Open box, and then click OK.
   2. Locate and then click the following registry subkey:
      HKEY_LOCAL_MACHINE\Software\WhaleCom\e-Gap\von\UrlFilter
   3. Right-click UrlFilter, point to New, and then click DWORD Value.
   4. Type DelayBetweenPackets, and then press ENTER.
   5. Right-click DelayBetweenPackets, and then click Modify.
   6. Click the Decimal option, type 10 in the Value Data box, and then click OK.