> Source: [sk65074](https://support.checkpoint.com/results/sk/sk65074)

# sk65074 - "Virtual defragmentation error: Timeout, Failed to generate IP packet from fragments" drop logs from IPS 

| Property | Value |
|----------|-------|
| Solution ID | sk65074 |
| Date Created | 2011-08-18 |
| Last Modified | 2022-02-10 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R81 (EOS) |

## Symptoms

- * SmartView Tracker shows the following drop log from IPS protection "IP Fragments":

  `
  Type = Log`  
  `
  Action = Drop`  
  `
  Information = message: Virtual defragmentation error: Timeout`  
  `
  Attack Information = Failed to generate IP packet from fragments
  `
* #fw ctl zdebug drops shows. dropped by fwfrag_error Reason: Virtual defragmentation error: fragment table is full;

## Cause

The IPS is part of the de-fragmentation process.  
These drops are generated since the original packet is dropped, but copied to a buffer for de-fragmentation. Once all fragments arrive, the packet is de-fragmented, inspected and forwarded.

**Note:** In certain occasions, these drops could indicate an issue with the arrival / sending of fragmented traffic.

## Solution

This solution requires authentication. Please log in to view the full solution.

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