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Merge pull request #9948 from tangicolin/improve-doc-networking

Improve networking documentation with default mac address range
James Turnbull 10 years ago
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ef2d6dda0f
1 changed files with 3 additions and 1 deletions
  1. 3 1
      docs/sources/articles/networking.md

+ 3 - 1
docs/sources/articles/networking.md

@@ -12,7 +12,9 @@ private range defined by [RFC 1918](http://tools.ietf.org/html/rfc1918)
 that are not in use on the host machine, and assigns it to `docker0`.
 that are not in use on the host machine, and assigns it to `docker0`.
 Docker made the choice `172.17.42.1/16` when I started it a few minutes
 Docker made the choice `172.17.42.1/16` when I started it a few minutes
 ago, for example — a 16-bit netmask providing 65,534 addresses for the
 ago, for example — a 16-bit netmask providing 65,534 addresses for the
-host machine and its containers.
+host machine and its containers. The MAC address is generated using the
+IP address allocated to the container to avoid ARP collisions, using a
+range from `02:42:ac:11:00:00` to `02:42:ac:11:ff:ff`.
 
 
 > **Note:**
 > **Note:**
 > This document discusses advanced networking configuration
 > This document discusses advanced networking configuration