> Source: [sk173126](https://support.checkpoint.com/results/sk/sk173126)

# sk173126 - NAT is calculated at the inbound level

| Property | Value |
|----------|-------|
| Solution ID | sk173126 |
| Date Created | 2021-04-18 |
| Last Modified | 2021-04-19 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R81 (EOS) |

## Symptoms

- * Inbound and outbound NAT are calculated at the Inbound level.
* NAT rules for the "Group Servers" object do not work, but NAT rules for the "Logical Server" object do work. <br />

## Cause

For R80.20 and higher, inbound NAT and outbound NAT are calculated at the "Inbound" level of the kernel.

<br />

## Solution

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