diff --git a/man/systemd.network.xml b/man/systemd.network.xml index 8b6c187f34..e354e48516 100644 --- a/man/systemd.network.xml +++ b/man/systemd.network.xml @@ -479,18 +479,14 @@ specified more than once. - If the specified address is 0.0.0.0 (for IPv4) or - [::] (for IPv6), a new address range of the requested size - is automatically allocated from a system-wide pool of - unused ranges. The allocated range is checked against all - current network interfaces and all known network - configuration files to avoid address range conflicts. The - default system-wide pool consists of 192.168.0.0/16, - 172.16.0.0/12 and 10.0.0.0/8 for IPv4, and fc00::/7 for - IPv6. This functionality is useful to manage a large - number of dynamically created network interfaces with the - same network configuration and automatic address range - assignment. + If the specified address is 0.0.0.0 (for IPv4) or :: + (for IPv6), a new address range of the requested size is automatically allocated from a + system-wide pool of unused ranges. Note that the prefix length must be equal or larger than 8 for + IPv4, and 64 for IPv6. The allocated range is checked against all current network interfaces and + all known network configuration files to avoid address range conflicts. The default system-wide + pool consists of 192.168.0.0/16, 172.16.0.0/12 and 10.0.0.0/8 for IPv4, and fd00::/8 for IPv6. + This functionality is useful to manage a large number of dynamically created network interfaces + with the same network configuration and automatic address range assignment.