doc: network - add comment about default prefix size

Should hopefully make it clear that this is not some magic value, just the default we picked.

Suggested by Jan Engelhardt.

diff --git a/network/80-container-ve.network b/network/80-container-ve.network
index fe24eb45f8b1d4d33a1b590811edceb045e54d40..7fb09ccdeeada4f8d7fbda86026bbe4eaad212b9 100644 (file)
--- a/network/80-container-ve.network
+++ b/network/80-container-ve.network
@@ -10,6 +10,7 @@ Name=ve-*
 Driver=veth
 
 [Network]
+# Default to using a /28 prefix, giving up to 13 addresses per container.
 Address=0.0.0.0/28
 IPv4LL=yes
 DHCPServer=yes