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docker-for-windows/networking.md
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@ -1,19 +1,19 @@
--- ---
description: Networking description: Networking
keywords: windows, networking keywords: windows, networking
title: Networking features in Docker for Windows title: Networking features in Docker Desktop for Windows
--- ---
{% assign Arch = 'Windows' %} {% assign Arch = 'Windows' %}
Docker for {{Arch}} provides several networking features to make it easier to Docker Desktop for {{Arch}} provides several networking features to make it easier to
use. use.
## Features ## Features
### VPN Passthrough ### VPN Passthrough
Docker for {{Arch}}'s networking can work when attached to a VPN. To do this, Docker Desktop for {{Arch}}'s networking can work when attached to a VPN. To do this,
Docker for {{Arch}} intercepts traffic from the containers and injects it into Docker Desktop for {{Arch}} intercepts traffic from the containers and injects it into
{{Arch}} as if it originated from the Docker application. {{Arch}} as if it originated from the Docker application.
### Port Mapping ### Port Mapping
@ -24,7 +24,7 @@ When you run a container with the `-p` argument, for example:
$ docker run -p 80:80 -d nginx $ docker run -p 80:80 -d nginx
``` ```
Docker for {{Arch}} makes whatever is running on port 80 in the container (in Docker Desktop for {{Arch}} makes whatever is running on port 80 in the container (in
this case, `nginx`) available on port 80 of `localhost`. In this example, the this case, `nginx`) available on port 80 of `localhost`. In this example, the
host and container ports are the same. What if you need to specify a different host and container ports are the same. What if you need to specify a different
host port? If, for example, you already have something running on port 80 of host port? If, for example, you already have something running on port 80 of
@ -43,18 +43,18 @@ See [Proxies](index#Proxies).
## Known limitations, use cases, and workarounds ## Known limitations, use cases, and workarounds
Following is a summary of current limitations on the Docker for {{Arch}} Following is a summary of current limitations on the Docker Desktop for {{Arch}}
networking stack, along with some ideas for workarounds. networking stack, along with some ideas for workarounds.
### There is no docker0 bridge on {{Arch}} ### There is no docker0 bridge on {{Arch}}
Because of the way networking is implemented in Docker for {{Arch}}, you cannot Because of the way networking is implemented in Docker Desktop for {{Arch}}, you cannot
see a `docker0` interface on the host. This interface is actually within the see a `docker0` interface on the host. This interface is actually within the
virtual machine. virtual machine.
### I cannot ping my containers ### I cannot ping my containers
Docker for Windows can't route traffic to Linux containers. However, you can Docker Desktop for Windows can't route traffic to Linux containers. However, you can
ping the Windows containers. ping the Windows containers.
### Per-container IP addressing is not possible ### Per-container IP addressing is not possible
@ -72,7 +72,7 @@ The host has a changing IP address (or none if you have no network access). From
18.03 onwards our recommendation is to connect to the special DNS name 18.03 onwards our recommendation is to connect to the special DNS name
`host.docker.internal`, which resolves to the internal IP address used by the `host.docker.internal`, which resolves to the internal IP address used by the
host. host.
This is for development purpose and will not work in a production environment outside of Docker for Windows. This is for development purpose and will not work in a production environment outside of Docker Desktop for Windows.
The gateway is also reachable as `gateway.docker.internal`. The gateway is also reachable as `gateway.docker.internal`.