> Source: [sk120987](https://support.checkpoint.com/results/sk/sk120987)

# sk120987 - Control connections are not matched by implied rules when manual NAT rules are used

| Property | Value |
|----------|-------|
| Solution ID | sk120987 |
| Date Created | 2017-10-19 |
| Last Modified | 2019-05-27 |
| Technical Level | Advanced |
| Products | Security Management Server |
| Versions | R82.10, R82, R81.20, R82.x, R82.20 |

## Symptoms

- * Control connections between Security Management server and Security gateway (for example: port 18191, 18192) are not matched by implied rules on the Gateway.
* Security Management server is behind NAT configured by manual NAT rules and there is no automatic NAT configured on the Security Management object.

## Solution

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

---

# Agent Instructions

This content is from the Check Point Support Center (https://support.checkpoint.com), the official knowledge base for Check Point cybersecurity products.

## Navigating This Knowledge Base

- **Complete index**: [llms.txt](https://support.checkpoint.com/llms.txt)
- **All SK articles**: [SecureKnowledge Sitemap](https://support.checkpoint.com/sitemaps/secureknowledge-sitemap-index.xml)
- **SK article URL pattern**: `https://support.checkpoint.com/results/sk/{skId}`
- **Markdown responses**: AI bot User-Agents automatically receive `text/markdown` content