[racktables-users] IPv6 and reserved ip addresses
- From: Jens Weibler <jens.weibler@xxxxxxx>
- To: racktables-users@xxxxxxxxxxxxx
- Date: Tue, 12 Apr 2011 22:28:46 +0200
Hi,
I just did the fault and used 2001:db8::/64 as router ip (as example).
A few days later I read rfc3513 which defines the "Subnet-Router anycast
address"...
Just as request for comments I've written a small patch (with some fixed
typo and better variable naming)...
For greater reserved ranges (multicast...) we might need a better
concept :-/
--
Jens Weibler
IT Services
Hochschule Darmstadt
www.h-da.de
University of Applied Sciences
Fachbereich Informatik
www.fbi.h-da.de
Schöfferstr. 8b
D-64295 Darmstadt
Tel +49 6151 16-8425
Fax +49 6151 16-8935
jens.weibler@xxxxxxx
diff -ur RackTables-0.19.3/wwwroot/inc/database.php
RackTables/wwwroot/inc/database.php
--- RackTables-0.19.3/wwwroot/inc/database.php 2011-04-05 12:40:33.000000000
+0200
+++ RackTables/wwwroot/inc/database.php 2011-04-12 22:17:11.000000000 +0200
@@ -3338,7 +3338,7 @@
produceTagsForLastRecord ('ipv4net', $taglist);
}
-function createIPv6Prefix ($range = '', $name = '', $taglist = array())
+function createIPv6Prefix ($range = '', $name = '', $is_connected = FALSE,
$taglist = array())
{
// $range is in aaa0:b::c:d/x format, split into ip/mask vars
$rangeArray = explode ('/', $range);
@@ -3348,22 +3348,29 @@
$mask = $rangeArray[1];
$address = new IPv6Address;
if (!strlen ($ip) or !strlen ($mask) or ! $address->parse ($ip))
- throw new InvalidRequestArgException ('range', $range, 'Invalid
IPv4 prefix');
- $network_addr = $address->get_first_subnet_address ($mask);
- $broadcast_addr = $address->get_last_subnet_address ($mask);
- if (! $network_addr || ! $broadcast_addr)
+ throw new InvalidRequestArgException ('range', $range, 'Invalid
IPv6 prefix');
+ $first_addr = $address->get_first_subnet_address ($mask);
+ $last_addr = $address->get_last_subnet_address ($mask);
+ if (! $first_addr || ! $last_addr)
throw new InvalidRequestArgException ('range', $range, 'Invalid
netmask');
usePreparedInsertBlade
(
'IPv6Network',
array
(
- 'ip' => $network_addr->getBin(),
- 'last_ip' => $broadcast_addr->getBin(),
+ 'ip' => $first_addr->getBin(),
+ 'last_ip' => $last_addr->getBin(),
'mask' => $mask,
'name' => $name
)
);
+
+ // rfc3513 and rfc2526 (todo)
+ if ($is_connected)
+ {
+ // rfc3513 2.6.1 - Subnet-Router anycast
+ updateV6Address($first_addr, 'Subnet-Router anycast', 'yes');
+ }
produceTagsForLastRecord ('ipv6net', $taglist);
}
diff -ur RackTables-0.19.3/wwwroot/inc/interface.php
RackTables/wwwroot/inc/interface.php
--- RackTables-0.19.3/wwwroot/inc/interface.php 2011-04-05 15:44:00.000000000
+0200
+++ RackTables/wwwroot/inc/interface.php 2011-04-12 22:17:55.000000000
+0200
@@ -2546,6 +2546,7 @@
$prefix_value = empty ($_REQUEST['set-prefix']) ? '' :
$_REQUEST['set-prefix'];
echo "<th class=tdright>prefix</th><td class=tdleft><input
type=text name='range' size=36 class='live-validate' tabindex=1
value='${prefix_value}'></td>";
echo "<tr><th class=tdright>name</th><td class=tdleft><input
type=text name='name' size='20' tabindex=2></td></tr>";
+ echo "<tr><th class=tdright>connected network</th><td
class=tdleft><input type=checkbox name='is_connected' tabindex=3></td></tr>";
echo "<tr><td colspan=2>";
printImageHREF ('CREATE', 'Add a new network', TRUE, 4);
echo '</td></tr>';
diff -ur RackTables-0.19.3/wwwroot/inc/ophandlers.php
RackTables/wwwroot/inc/ophandlers.php
--- RackTables-0.19.3/wwwroot/inc/ophandlers.php 2011-04-05
12:59:58.000000000 +0200
+++ RackTables/wwwroot/inc/ophandlers.php 2011-04-12 22:17:11.000000000
+0200
@@ -910,9 +910,10 @@
assertStringArg ('range');
assertStringArg ('name', TRUE);
+ $is_connected = isset ($_REQUEST['is_connected']) ?
$_REQUEST['is_connected'] : 'off';
$taglist = isset ($_REQUEST['taglist']) ? $_REQUEST['taglist'] :
array();
global $sic;
- createIPv6Prefix ($_REQUEST['range'], $sic['name'], $taglist);
+ createIPv6Prefix ($_REQUEST['range'], $sic['name'], $is_connected,
$taglist);
return buildRedirectURL (__FUNCTION__, 'OK');
}
Other related posts:
