[mrtg] [nick at linicks.net: Re: [nick at linicks.net: mrtg bug? Interface e.g. eth0.2]]

[Nick Warne]

Sorry, forgot to send to list.

----- Forwarded message from Nick Warne <nick at linicks.net> -----

Date: Thu, 24 Oct 2013 16:34:14 +0100
From: Nick Warne <nick at linicks.net>
To: Mike Mitchell <Mike.Mitchell at sas.com>
Subject: Re: [mrtg] [nick at linicks.net: mrtg bug? Interface e.g. eth0.2]
User-Agent: Mutt/1.5.21 (2010-09-15)

On Thu, Oct 24, 2013 at 03:13:39PM +0000, Mike Mitchell wrote:
> Do you have any '--global' options on your cfgmaker command line?
> The cfgmaker errors stem from these three lines, starting at line #1372:
>                 $g =~ /^options\[([_^\$])\]:\s*(.*)$/i;
>                 $t = $1;
>                 $fs = $2;
> The first line is a pattern match.  If the pattern matches, $1 and $2 are filled in with the matching parts in parenthesis.  In this case they are both undefined, meaning neither one matched.
> A work-around would be to change these three lines to be
>                 $g =~ /^options\[([_^\$])\]:\s*(.*)$/i;
>                 $t = $1;
>                 $t = "" if (!defined($t));
>                 $fs = $2;
>                 $fs = "" if (!defined($fs));
> 
> The error from SNMP_util.pm comes from a badly-formed SNMP response from your router.
> It would help if I could see what is in $BER::errmsg and $SNMP_Session::errmsg.  I'd put print them out in cfgmaker, but I'll need additional traceback information.  cfgmaker calls snmpwalk in several different places and I'd like to know which one generated the error.

OK, that sorts the cfgmaker errors, but I still get:

--base: Get Device Info on nick at 192.168.1.1:
--base: Vendor Id: Unknown Vendor - 1.3.6.1.4.1.16972
--base: Populating confcache
Use of uninitialized value in concatenation (.) or string at /opt/mrtg/bin/../lib/mrtg2/SNMP_util.pm line 755.
--base: Get Interface Info

and no interface *.htmls file get produced.

I still think this is due to the interfaces now having a '.' appended.  On other routers, it is alway an underscore.

Thanks for your help.


> From: Nick Warne [nick at linicks.net]
> Sent: Thursday, October 24, 2013 10:33 AM
> To: Mike Mitchell
> Cc: mrtg at lists.oetiker.ch
> Subject: Re: [mrtg] [nick at linicks.net: mrtg bug? Interface e.g. eth0.2]
> 
> On Thu, Oct 24, 2013 at 02:22:48PM +0000, Mike Mitchell wrote:
> > What version of MRTG are you running?  It might be time for an upgrade.
> > I looked through my archive of SNMP_util.pm versions over the last 6 years and not one had a concatenation or string on line 755.  I have older versions archived, but they aren't as easy to get to.
> 
> cfgmaker for mrtg-2.17.4
> 
> The latest stable, that was the first thing I checked this morning.
> 
> 
> > Mike Mitchell
> > ________________________________________
> > From: mrtg-bounces+mike.mitchell=sas.com at lists.oetiker.ch [mrtg-bounces+mike.mitchell=sas.com at lists.oetiker.ch] on behalf of Nick Warne [nick at linicks.net]
> > Sent: Thursday, October 24, 2013 8:18 AM
> > To: mrtg at lists.oetiker.ch
> > Subject: [mrtg] [nick at linicks.net: mrtg bug? Interface e.g. eth0.2]
> >
> > Date: Thu, 24 Oct 2013 13:15:27 +0100
> > From: Nick Warne <nick at linicks.net>
> > To: mrtg at lists.oetiker.ch
> > Subject: mrtg bug? Interface e.g. eth0.2
> > User-Agent: Mutt/1.5.21 (2010-09-15)
> >
> > Hi all,
> >
> > I have been running mrtg for years on various routers etc. all without a problem.
> >
> > Today, I finally got fibre DSL.  So I reconfigure my adsl router to just use ppp0e WAN connection - all works great.
> >
> > Now before the changes, router reported 3 interfaces:
> >
> > eth0 (vlan)
> > br0
> > ra0
> >
> > and mrtg all worked great.
> >
> > But now when I run configmaker on new setup something strange happens.
> >
> > I get parsing errors in the output thus:
> >
> > Use of uninitialized value in substitution (s///) at ./cfgmaker line 1375.
> > Use of uninitialized value in substitution (s///) at ./cfgmaker line 1376.
> > Use of uninitialized value in substitution (s///) at ./cfgmaker line 1377.
> > Use of uninitialized value in pattern match (m//) at ./cfgmaker line 1382.
> > Use of uninitialized value in hash element at ./cfgmaker line 1383.
> > {repeats x3}
> >
> > and one single line:
> >
> > Use of uninitialized value in concatenation (.) or string at /opt/mrtg/bin/../lib/mrtg2/SNMP_util.pm line 755.
> >
> > The interfaces now reported are:
> > eth0
> > eth0.2
> > eth0.3
> > eth0.4
> > eth0.5
> > br0
> > ra0
> >
> > which makes me think the extra '.' in the interface names etc. fubars it.
> >
> > The logs get updated, and some do the images correctly.  But cfgmaker doesn't produce interface *.html files.
> >
> > I have tried various ifref/ifdesc types, all to no avail.
> >
> > Any ideas?
> >
> > Thanks,
> >
> > Nick
> > --
> > FSF Associate Member 5508
> > http://linicks.net/
> >
> > _______________________________________________
> > mrtg mailing list
> > mrtg at lists.oetiker.ch
> > https://lists.oetiker.ch/cgi-bin/listinfo/mrtg
> >
> >
> 
> --
> FSF Associate Member 5508
> http://linicks.net/
> 
> 

-- 
FSF Associate Member 5508
http://linicks.net/

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FSF Associate Member 5508
http://linicks.net/