<html><body><div style="font-family: Andale Mono; font-size: 10pt; color: #000000"><div style="font-family: Andale Mono; font-size: 10pt; color: #000000">I believe those log() features (as well as oncommit()) do not work in DHCPv6 until 4.3.2 <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;"><b>From: </b>"Sean McMurray" <sean@mvtel.com><br><b>To: </b>"Users of ISC DHCP" <dhcp-users@lists.isc.org><br><b>Sent: </b>Wednesday, March 18, 2015 10:03:30 AM<br><b>Subject: </b>Re: Logging circuit-id<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;">version 4.1.1<br>
yes. it is DHCPv6, by default.<br>
<br>
<div class="moz-cite-prefix">On 03/18/2015 06:21 AM, perl-list
wrote:<br>
</div>
<blockquote cite="mid:937251164.686016.1426684887260.JavaMail.zimbra@network1.net">
<div style="font-family: Andale Mono; font-size: 10pt; color:
#000000">
<div style="font-family: Andale Mono; font-size: 10pt; color:
#000000">What version of ISC DHCP, and is this DHCPv6 that you
are trying to log?<br>
<br>
<hr id="zwchr">
<div>
<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;"><b>From:
</b>"Sean McMurray" <a class="moz-txt-link-rfc2396E" href="mailto:sean@mvtel.com" target="_blank"><sean@mvtel.com></a><br>
<b>To: </b>"Users of ISC DHCP"
<a class="moz-txt-link-rfc2396E" href="mailto:dhcp-users@lists.isc.org" target="_blank"><dhcp-users@lists.isc.org></a><br>
<b>Sent: </b>Tuesday, March 17, 2015 9:22:30 PM<br>
<b>Subject: </b>Re: Logging circuit-id<br>
</blockquote>
</div>
<div>
<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;">I
can tell it to log(error, "Hello") and it won't log.<br>
<br>
<div class="moz-cite-prefix">On 03/17/2015 06:15 PM,
perl-list wrote:<br>
</div>
<blockquote cite="mid:1439414469.684071.1426641340236.JavaMail.zimbra@network1.net">
<div style="font-family: Andale Mono; font-size: 10pt;
color: #000000">
<div style="font-family: Andale Mono; font-size: 10pt;
color: #000000"><br>
</div>
<div style="font-family: Andale Mono; font-size: 10pt;
color: #000000">Here is an example of how I have
done it:</div>
<div style="font-family: Andale Mono; font-size: 10pt;
color: #000000"><br>
</div>
<div style="font-family: Andale Mono; font-size: 10pt;
color: #000000">
<p style="margin: 0px; font-size: 11px; font-family:
Menlo;">if exists agent.circuit-id {</p>
<p style="margin: 0px; font-size: 11px; font-family:
Menlo;"> log ( error,</p>
<p style="margin: 0px; font-size: 11px; font-family:
Menlo;"> concat(
"agent.circuit-id,", binary-to-ascii (10, 8, ".",
leased-address),",",</p>
<p style="margin: 0px; font-size: 11px; font-family:
Menlo;">
"circuit-id,",option agent.circuit-id,",",</p>
<p style="margin: 0px; font-size: 11px; font-family:
Menlo;">
"time,",binary-to-ascii(10,32,"",encode-int
(lease-time,32)),",",</p>
<p style="margin: 0px; font-size: 11px; font-family:
Menlo;">
"hardware,",binary-to-ascii(16,8,":",substring(hardware,1,7))</p>
<p style="margin: 0px; font-size: 11px; font-family:
Menlo;"> )</p>
<p style="margin: 0px; font-size: 11px; font-family:
Menlo;"> );</p>
<p style="margin: 0px; font-size: 11px; font-family:
Menlo;">}</p>
<div><br>
</div>
</div>
<div style="font-family: Andale Mono; font-size: 10pt;
color: #000000">If that doesn't work then the
circuit-id may not be there (if no line appears at
all in the logs), or if it only logs a partial line
then the circuit-id is likely binary instead of
ASCII. I'm not sure how to log if it is binary -
some use of binary-to-ascii will be necessary.<br>
<br>
<hr id="zwchr">
<div>
<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;"><b>From:
</b>"Sean McMurray" <a class="moz-txt-link-rfc2396E" href="mailto:sean@mvtel.com" target="_blank"><sean@mvtel.com></a><br>
<b>To: </b><a class="moz-txt-link-abbreviated" href="mailto:dhcp-users@lists.isc.org" target="_blank">dhcp-users@lists.isc.org</a><br>
<b>Sent: </b>Tuesday, March 17, 2015 5:51:16 PM<br>
<b>Subject: </b>Logging circuit-id<br>
</blockquote>
</div>
<div>
<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;">I
would like my dhcpd logs to include circuit-id.<br>
I have tried to use log() directives in my conf
file, but nothing I have <br>
tried works.<br>
<br>
Here is an example of a configuration I have
included in a subnet:<br>
<br>
log(info, concat(<br>
" Mac: ",binary-to-ascii(16, 8, ":",
substring(hardware,1, 6))<br>
," IP: ",binary-to-ascii (10, 8, ".",
leased-address)<br>
,"Circuit: ",option agent.circuit-id<br>
));<br>
<br>
<br>
Standard logging is working fine to record
DHCPDISCOVER, DHCPOFFER, etc. <br>
I just can't get custom entries to show up in
the log.<br>
<br>
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