Problem with set request. Net::SNMP module

Sergeyk has asked for the wisdom of the Perl Monks concerning the following question:

My script is supposed to do 'set' request table on the device for config backup

my @request;

push(@request, ("1.3.6.1.4.1.2011.6.10.1.2.4.1.2.$rand_value",INTEGER,
+6));
push(@request, ("1.3.6.1.4.1.2011.6.10.1.2.4.1.3.$rand_value",INTEGER,
+1));
push(@request, ("1.3.6.1.4.1.2011.6.10.1.2.4.1.4.$rand_value",OCTET_ST
+RING,"$device_name"));
push(@request, ("1.3.6.1.4.1.2011.6.10.1.2.4.1.5.$rand_value",IPADDRES
+S,'192.168.0.1'));
push(@request, ("1.3.6.1.4.1.2011.6.10.1.2.4.1.6.$rand_value",OCTET_ST
+RING,'user'));
push(@request, ("1.3.6.1.4.1.2011.6.10.1.2.4.1.7.$rand_value",OCTET_ST
+RING,'password'));
push(@request, ("1.3.6.1.4.1.2011.6.10.1.2.4.1.9.$rand_value",INTEGER,
+4));

my  ($session, $error) = Net::SNMP->session(
    -hostname      => $device_ip,
    -version       => 'snmpv1',
    -community     => $device_comunity,
    );

$result = $session->set_request(-varbindlist=>[@request]);

if (!defined $result) {
   printf "ERROR: %s\n", $session->error();
   $session->close();
   exit 1;
}

$session->close();
[download]

but it does not work and the device displays a message in the log Aug 4 2013 21:08:33+03:00 device %%01SNMP/4/SNMP_SET(l)[0]:MIB node set. (SourceIP=192.168.0.1, RequestId=376206003, ErrorStatus=7, ErrorIndex=7, hwCfgOperateRowStatus.2667=4) But request directly from the command line works

snmpset -v 1 -c private 192.168.0.2 .1.3.6.1.4.1.2011.6.10.1.2.4.1.2.1
+003 i 6
 .1.3.6.1.4.1.2011.6.10.1.2.4.1.3.1003 i 1 .1.3.6.1.4.1.2011.6.10.1.2.
+4.1.4.1003 s 'config.cfg' 
.1.3.6.1.4.1.2011.6.10.1.2.4.1.5.1003 a 192.168.0.1 .1.3.6.1.4.1.2011.
+6.10.1.2.4.1.6.1003 s 'user' 
.1.3.6.1.4.1.2011.6.10.1.2.4.1.7.1003 s 'password' .1.3.6.1.4.1.2011.6
+.10.1.2.4.1.9.1003 i 4
[download]

what am I doing wrong?

Comment on Problem with set request. Net::SNMP module Select or Download Code

Replies are listed 'Best First'.
Re: Problem with set request. Net::SNMP module by rjt (Curate) on Aug 05, 2013 at 10:44 UTC
A few potential problems (Net::SNMP may take care of some of these for you): `push(@request, ("1.3.6.1.4.1.2011.6.10.1.2.4.1.2.$rand_value",INTEGER, +6)); # ^ -- Add a leading dot here` [download] You are missing the leading dot on your fully-qualified OID; the examples in Net::SNMP don't include it either, though, but it may be worth a try. You might also need a trailing `.0` after `$rand_value` to specify the (scalar) index, unless you've accounted for that in `$rand_value`. An `ErrorStatus` of 7 normally corresponds to a `WRONGTYPE` error. My SNMP is a bit rusty, but I note you are setting up an `INTEGER` varbind but passing in `'6'`. Do you need to pack that to a 32-bit signed int? Try: `push(@request, ($OID,INTEGER,pack('l>',6)));` Finally, what does `$session->error` report? Is it the same as what you see in the log? What happens if you send separate `set_request()`s for each varbind—i.e., do all of them fail similarly, or is it a more specific problem? Sorry for the "multiple guess" answer, but it's been a while, and I have no environment capable of testing this. Hope it helps! `use strict; use warnings;` omitted for brevity.	[reply] [d/l] [select]
Re^2: Problem with set request. Net::SNMP module by Sergeyk (Novice) on Aug 05, 2013 at 11:44 UTC
I found a problem. It is not associated with the module net::snmp. It is associated with the file name format in the query. Name must be in the following format: devicename.cfg	[reply]
Re^3: Problem with set request. Net::SNMP module by Anonymous Monk on Mar 22, 2017 at 17:53 UTC
Please I have a problem with devicename.cfg file, my script only works with only one command (example: hostname xxx), but when i want to send several commands (example: aaa localuser yyy) I get a error message, do you know how to do that?	[reply]