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docs: add docs for network connectivity

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Adds documentation on the ports used by various components of Talos
Signed-off-by: Eashwar Ranganathan <eashwar@eashwar.com>
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Eashwar Ranganathan 2020-12-05 09:29:52 -08:00 committed by talos-bot
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commit 2bc7ed0ed9
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---
title: "Configuring Network Connectivity"
description: ""
---
## Configuring Network Connectivity
The simplest way to deploy Talos is by ensuring that all the remote components of the system (`talosctl`, the control plane nodes, and worker nodes) all have layer 2 connectivity.
This is not always possible, however, so this page lays out the minimal network access that is required to configure and operate a talos cluster.
> Note: These are the ports required for Talos specifically, and should be configured _in addition_ to the ports required by kuberenetes.
See the [kubernetes docs](https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/#check-required-ports) for information on the ports used by kubernetes itself.
### Control plane node(s)
<table class="table-auto">
<thead>
<tr>
<th class="px-4 py-2">Protocol</th>
<th class="px-4 py-2">Direction</th>
<th class="px-4 py-2">Port Range</th>
<th class="px-4 py-2">Purpose</th>
<th class="px-4 py-2">Used By</th>
</tr>
</thead>
<tbody>
<tr>
<td class="border px-4 py-2">TCP</td>
<td class="border px-4 py-2">Inbound</td>
<td class="border px-4 py-2">50000*</td>
<td class="border px-4 py-2"><a href="https://talos.dev/docs/v0.8/learn-more/components/#apid">apid</a></td>
<td class="border px-4 py-2">talosctl</td>
</tr>
<tr>
<td class="border px-4 py-2">TCP</td>
<td class="border px-4 py-2">Inbound</td>
<td class="border px-4 py-2">50001*</td>
<td class="border px-4 py-2"><a href="https://talos.dev/docs/v0.8/learn-more/components/#trustd">trustd</a></td>
<td class="border px-4 py-2">Control plane nodes, worker nodes</td>
</tr>
</tbody>
</table>
> Ports marked with a `*` are not currently configurable, but that may change in the future.
[Follow along here](https://github.com/talos-systems/talos/issues/1836).
### Worker node(s)
<table class="table-auto">
<thead>
<tr>
<th class="px-4 py-2">Protocol</th>
<th class="px-4 py-2">Direction</th>
<th class="px-4 py-2">Port Range</th>
<th class="px-4 py-2">Purpose</th>
<th class="px-4 py-2">Used By</th>
</tr>
</thead>
<tbody>
<tr>
<td class="border px-4 py-2">TCP</td>
<td class="border px-4 py-2">Inbound</td>
<td class="border px-4 py-2">50001*</td>
<td class="border px-4 py-2"><a href="https://talos.dev/docs/v0.8/learn-more/components/#trustd">trustd</a></td>
<td class="border px-4 py-2">Control plane nodes</td>
</tr>
</tbody>
</table>
> Ports marked with a `*` are not currently configurable, but that may change in the future.
[Follow along here](https://github.com/talos-systems/talos/issues/1836).