Template:IPaddr/doc
Introduction
Template {{IPaddr}} is used to make an IP address stand out in the text, to improve readability.
An IP address is displayed in italics, using lower case letters for IPv6 addresses.
Arguments
The first parameter is the IP address to be displayed.
The second parameter is optional and indicates the number of bits in the network address in CIDR notation.
If given, it is appended to the first with a slash (/) as a separator.
When the option netmask=dotted is set, the second argument (if present) is translated to a dotted decimal netmask.
Examples
{{IPaddr|198.51.100.227}} yields: 198.51.100.227.
{{IPaddr|203.0.113.109/29}} adds the network mask as is: 203.0.113.109/29, but
{{IPaddr|203.0.113.109|29}} yields: 203.0.113.109/29 which adds some non-breaking space around the slash ('/') separator, to improve readability.
{{IPaddr||29}} yields just the netmask: /29.
{{IPaddr|203.0.113.109|29|netmask=dotted}} yields: 203.0.113.109/255.255.255.248, which might sometimes be useful.
{{IPaddr||18|netmask=dotted}} yields just the netmask in dotted decimal notation: 255.255.192.0 (without the slash).
{{IPaddr|2001:db8:27DF:34::|64}} yields: 2001:db8:27df:34::/64 (all lower case) as these are preferred in IPv6 addresses.