<h2>Introduction</h2>
-<A href="http://src.doc.ic.ac.uk/rfc/bcp/bcp5.txt">BCP5</a> (currently
-RFC1918, `Address Allocation for Private Internets') describes
-circumstances where it can be useful to have non-globally-unique IP
-addresses, and specifies three address IPv4 address ranges which can
-be used for this purpose.
+<a href="http://src.doc.ic.ac.uk/rfc/bcp/bcp5.txt">BCP5</a> (currently
+<a href="http://src.doc.ic.ac.uk/rfc/rfc1918.txt">RFC1918</a>,
+`Address Allocation for Private Internets') describes circumstances
+where it can be useful to have non-globally-unique IP addresses, and
+specifies three IPv4 address ranges which may be used for this
+purpose. RFC1918 recommends that, to minimise the risk of clashes
+when private internets need to be merged, address ranges should be
+chosen at random.
<p>
-<A href="http://src.doc.ic.ac.uk/rfc/rfc1918.txt">RFC1918</A>
-recommends that, to minimise the risk of clashes when private
-internets need to be merged, address ranges should be chosen at
-random.
-
-<p>
-
-This web page and database exists to help people choose ranges at
+This web page and database exist to help people choose ranges at
random, and to help them choose ranges which are not currently in use
by anyone else.
<form method="POST" action="@@@cgi@@@">
-with prefix length
+Choose network size:
<br>
-<input type=radio name="specsize" value="28" @@@pick28check@@@> 28 bits
- (an 4 bit subnet, with 14 hosts)
+<input type=radio name="specsize" value="28" @@@pick28check@@@>
+ 28 bit prefix (4 bit subnet, up to 14 hosts)
<br>
-<input type=radio name="specsize" value="24" @@@pick24check@@@> 24 bits
- (an 8 bit subnet, with 254 hosts) - <em>recommended</em>
+<input type=radio name="specsize" value="24" @@@pick24check@@@>
+ 24 bit prefix (8 bit subnet, up to 254 hosts)
<br>
<input type=radio name="specsize" value="prefix" @@@pickvarprefixcheck@@@>
- <input type=text name="pickvarprefix" size="24"
- value="@@@pickvarprefix@@@" size="5"> bits.
+ <input type=text name="pickvarprefix" value="@@@pickvarprefix@@@" size="5">
+ bit prefix.
<br>
<input type=radio name="specsize" value="subnet" @@@pickvarsubnetcheck@@@>
- <input type=text name="pickvarsubnet" size="8"
- value="@@@pickvarsubnet@@@" size="5"> bit subnet.
+ <input type=text name="pickvarsubnet" value="@@@pickvarsubnet@@@" size="5">
+ bit subnet.
<p>
-from the private-use range
+From which private-use range ?
@@@foreach:area@@@
You must enter an email address to `own' the database entry. This
email address will be mailed a reminder asking you to confirm/renew
your entry periodically, and will also be used to authorise changes to
-the entry.
+the entry. It will be published on these pages unless you select to
+hide it; apart from that we will only use it to contact you about your
+database entry.
@@@endif:@@@
@@@if:details|fulldetails@@@