> Source: [sk180741](https://support.checkpoint.com/results/sk/sk180741)

# sk180741 - "fwmultik_process_f2p_cookie_inner: error, frag_handle failed, error code 11" error message in /var/log/messages file

| Property | Value |
|----------|-------|
| Solution ID | sk180741 |
| Date Created | 2023-03-20 |
| Last Modified | 2023-03-20 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |

## Symptoms

- The */var/log/messages* file on the Security Gateway contains this error message:
`
Feb 25 11:18:57 2023 HostName kernel: [fw4_3];fwmultik_process_f2p_cookie_inner: error,`  
` frag_handle failed, error code 11
`

<br />

## Cause

IP fragmentation occurs at L3 hops when the next hop egress interface's MTU is smaller than the size of the packet to be transmitted. If DF (Don't Fragment) is not set, the egress interface fragments the packet. Fragmented packets can be fragmented again.

<br />

## Solution

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

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