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Describe an 'internal' network. 

Added a description of a '--internal' network (from @neersighted).

Co-authored-by: Bjorn Neergaard <bjorn.neergaard@docker.com>
Signed-off-by: Rob Murray <rob.murray@docker.com>
This commit is contained in:
Rob Murray 2024-03-08 17:12:15 +00:00
parent 860b4f3a7d
commit 617377c045
1 changed files with 6 additions and 0 deletions
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6
docs/reference/commandline/network_create.md
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@ -184,6 +184,12 @@ $ docker network create \
### <a name="internal"></a> Network internal mode (--internal) ### <a name="internal"></a> Network internal mode (--internal)
Containers on an internal network may communicate between each other, but not
with any other network, as no default route is configured and firewall rules
are set up to drop all traffic to or from other networks. Communication with
the gateway IP address (and thus appropriately configured host services) is
possible, and the host may communicate with any container IP directly.
By default, when you connect a container to an `overlay` network, Docker also By default, when you connect a container to an `overlay` network, Docker also
connects a bridge network to it to provide external connectivity. If you want connects a bridge network to it to provide external connectivity. If you want
to create an externally isolated `overlay` network, you can specify the to create an externally isolated `overlay` network, you can specify the