<html><body><div style="font-family: Andale Mono; font-size: 10pt; color: #000000"><div>Bill,</div><div><br data-mce-bogus="1"></div><div>Thank you for the response.</div><div><br data-mce-bogus="1"></div><div>That wouldn't necessarily give you the actual lease time, however, would it? It seems like it would give you the setting that you have in the pool6 {} statement.</div><div><br data-mce-bogus="1"></div><div>For example, if the client asked for a 3600 second lease but the server was configured for 28800 second lease, the server would give the client the 3600 second lease right? At least that was how it worked in IPv4/DHCPv4. So then you would log that the lease was 28800 when it was actually 3600 yes? Or is the server the absolute authority on lease times in DHCPv6? </div><div style="font-family: Andale Mono; font-size: 10pt; color: #000000;" data-mce-style="font-family: Andale Mono; font-size: 10pt; color: #000000;"><br><br><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><blockquote style="border-left: 2px solid #1010FF; margin-left: 5px; padding-left: 5px; color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;" data-mce-style="border-left: 2px solid #1010FF; margin-left: 5px; padding-left: 5px; color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;"><b>From: </b>"Bill Shirley" <bill@c3po.polymerindustries.biz><br><b>To: </b>dhcp-users@lists.isc.org<br><b>Sent: </b>Thursday, December 22, 2016 11:42:25 PM<br><b>Subject: </b>Re: bug in DHCPv6 option parse for on commit {} ?<br></blockquote></div><div data-marker="__QUOTED_TEXT__"><blockquote style="border-left: 2px solid #1010FF; margin-left: 5px; padding-left: 5px; color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;" data-mce-style="border-left: 2px solid #1010FF; margin-left: 5px; padding-left: 5px; color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;">I use (IPv6):<br>
<span color="#993300" data-mce-style="color: #993300;" style="color: #993300;"><tt>log (<br>
info,<br>
concat (<br>
" Lease:", pick-first-value(binary-to-ascii(10, 32, "",
config-option server.default-lease-time), "<none>")<br>
.<br>
.<br>
</tt><tt></tt></span><br>
Bill<br>
<br>
<div class="moz-cite-prefix">On 12/22/2016 10:41 AM, perl-list
wrote:<br>
</div>
<blockquote cite="mid:1927548505.376493.1482421290562.JavaMail.zimbra@network1.net">
<div style="font-family: Andale Mono; font-size: 10pt; color: #000000;" data-mce-style="font-family: Andale Mono; font-size: 10pt; color: #000000;">
<div>
<p style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;" data-mce-style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;">having something like this in the
dhcpd.conf file for DHCPv6:</span></p>
<p style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;" data-mce-style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;"><br>
</p>
<p style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;" data-mce-style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;">on commit {<br>
</p>
<p style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;" data-mce-style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;"> if exists dhcp6.ia-na {</span></p>
<p style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;" data-mce-style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;"> log(debug,</span></p>
<p style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;" data-mce-style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;"> concat(
"LEASED,",</span></p>
<p style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;" data-mce-style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;"> </span>"IPTIME,",binary-to-ascii(10,
32, "", substring(option dhcp6.ia-na,36,4)),","</p>
<p style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;" data-mce-style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;"></span><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;"> )</span></p>
<p style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;" data-mce-style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;"> );</span></p>
<p style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;" data-mce-style="color: #000000; font-family: Menlo; font-size: 11px; margin: 0px; line-height: normal;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;"> }</span></p>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;">}</span></div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;"><br>
</span></div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;">Will produce a value for IPTIME that
is equal to the time requested by the client instead of
what was given by the server.</span></div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;"><br>
</span></div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;">For example:</span></div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;"><br>
</span></div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;">Client (Redhat Enterprise Linux 7 -
ISC DHCP 4.2.5) sends a Renew for an IPv6 address via
DHCPv6 requesting the following times (As seen in
wireshark capture):<br>
</span></div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;"><br>
</span></div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;">T1: 3600</span></div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;">T2: 5400</span></div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;">Preferred Lifetime: 7200</span></div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;">Valid Lifetime: 7500</span></div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;"><br>
</span></div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><span style="font-variant-ligatures: no-common-ligatures;" data-mce-style="font-variant-ligatures: no-common-ligatures;">Server (generic Linux - ISC DHCP
4.3.3) is configured with this time setting in the pool6
{} statement:</span></div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><br>
</div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;">default-lease-time
600;<br>
</div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><br>
</div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;">Server
responds with times like this (as seen in wireshark
capture):</div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><br>
</div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;">T1: 0</div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;">T2: 0</div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;">Preferred
Lifetime: 375</div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;">Valid
Lifetime: 600</div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><br>
</div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;">What is logged
in the log file is 7500 not 600.</div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><br>
</div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;">The client
lease file shows the following times:</div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><br>
</div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;">Renew: 0</div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;">Rebind: 0</div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;">Preferred
Lifetime: 375</div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;">Valid
Lifetime: 600</div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;"><br>
</div>
<div style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;" data-mce-style="color: #000000; font-family: 'Andale Mono'; font-size: 10pt;">So, it seems
that the dhcp options available in on commit {} are what the
client sent in instead of those the server sent in response?
Is that a bug? Or do I not understand how on commit {}
works? I assumed that on commit {} would have access to the
options as set by the server that were sent back to the
client.</div>
</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
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</blockquote>
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