> Source: [sk177263](https://support.checkpoint.com/results/sk/sk177263)

# sk177263 - Threat Extraction and other software blades recognize DMZ interface as internal

| Property | Value |
|----------|-------|
| Solution ID | sk177263 |
| Date Created | 2022-01-07 |
| Last Modified | 2022-01-11 |
| Technical Level | Advanced |
| Products | Security Gateway, Security Management Server, Multi-Domain Security Management Server |
| Versions | R82.10, R82, R81.20, R82.10, R82, R81.20, R82.10, R82.20, R81.20, R82, R82.20 |
| OS | Gaia |

## Symptoms

- * Some software blades recognize the Security Zone of an interface as `Internal` even though the interface is defined in the Security Gateway topology as `DMZ`. For example, the Threat Extraction software blade does not inspect traffic on some or all networks behind interfaces defined as DMZ.
* The kernel debug (`fw ctl debug -m fw + conn drop vm if`) shows "`outzone[Internal]`" for affected traffic

## Cause

The affected network is assigned to different Security Zones in different interfaces. For example, in one interface the network is assigned to the `Internal` Security Zone, and in a different interface the network is assigned to the `DMZ` Security Zone. This causes the Security Gateway to mark the network zone `Internal` instead of `DMZ`.

## Solution

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