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41 lines
2.1 KiB
Markdown
How to check for CGNAT?
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## Issue
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All Firewall exclusions and Port forwarding rules are set up correctly, yet nobody can join your home-hosted Server?
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If you have connection problems and you are using a Hosting-Service, contact them for assistance. If you want to use a VPS or cannot host a server at home, take a look at our
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[list of Partnered hosting services](../../server/create-a-server/#partnered-hosting-services-paid) (Server setup documentation).
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# What even is CGNAT?
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For a detailed explanation, on what CGNAT is and why it's an issue when trying to host a server at home, take a look at [this page](https://en.wikipedia.org/wiki/Carrier-grade_NAT).
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# How to check for CGNAT?
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## Method 1:
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Open a command prompt, run ``tracert -4 beammp.com``. This will output a series of network hops. Wait for the operation to finish (may take up to 30 hops). Check the first few IP addresses after the IP of your Router/Modem/Gateway.
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If multiple IP addresses within the range of ``100.64.x.x``-``100.127.x.x`` or ``10.xx.xx.xx`` appear after the first hop, you are most likely behind a CGNAT.
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!!! note
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The first hop will be your Router/Modem/Gateway and differs between Devices.
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The official ranges for local networks are as follows: ``10.0.0.xxx`` - ``192.168.xxx.xxx`` - ```172.16.xxx.xxx``
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## Method 2:
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Find out the WAN IP on your router by looking it up on its interface. Compare it to the IP posted on e.g. https://whatsmyip.org . If they are NOT the same, you are behind a CGNAT.
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## Method 3/Solution:
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Call your Internet Service Provider for assistance.
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Depending on your ISP, they might not offer dedicated *dynamic* IP adresses. Keep in mind, that a static IP is not necessary.
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!!! warning
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Internet Service Providers may only offer dedicated IP addresses as a **paid option**.
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Please check the prices of our partnered hosting services as they could be cheaper than this fee!
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Example of a non-CGNAT Network:
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Tags: Server, 10060 10061, CGNAT, Connection Failed, Port Forward, Firewall
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