SNMPGET returns "Invalid object identifier: .1.3.6.1.2.1.1.1.0"

[Mike Lindsay]

Hey All,

Ok I've been going nuts (as well as spending 6hours) trying to figure out
what's going on with this.

When I poll my switch from the commandline using net-snmp's snmpget tool I
get the proper response:

adxitutil1# ./snmpget -v 1 -c public xxx.xxx.xxx.xxx 1.3.6.1.2.1.1.1.0

SNMPv2-MIB::sysDescr.0 = STRING: Cisco Internetwork Operating System
Software
IOS (tm) C3500XL Software (C3500XL-C3H2S-M), Version 12.0(5.2)XU,
MAINTENANCE INTERIM SOFTWARE
Copyright (c) 1986-2000 by cisco Systems, Inc.
Compiled Mon 17-Jul-00 18:29 by ayounes

Now, when I do the SNMPGET call from PHP:

$a = snmpget("10.1.0.11", "public", ".1.3.6.1.2.1.1.1.0");
echo "A == $a <BR>";

I get:

Warning: snmpget() [function.snmpget]: Invalid object identifier:
.1.3.6.1.2.1.1.1.0 in /usr/local/apache2/htdocs/snmpget_test.php on line 11

Yet:

$a = snmpwalkoid("xxx.xxx.xxx.xxx", "public", "");
for (reset($a); $i = key($a); next($a)) {
echo "$i: $a[$i]<br>\n";
}

Returns:

SNMPv2-MIB::sysDescr.0: Cisco Internetwork Operating System Software IOS
(tm) C3500XL Software (C3500XL-C3H2S-M), Version 12.0(5.2)XU, MAINTENANCE
INTERIM SOFTWARE Copyright (c) 1986-2000 by cisco Systems, Inc. Compiled Mon
17-Jul-00 18:29 by ayounes
SNMPv2-MIB::sysObjectID.0: SNMPv2-SMI::enterprises.9.1.248
SNMPv2-MIB::sysUpTime.0: 229:1:20:43.90
SNMPv2-MIB::sysContact.0:
SNMPv2-MIB::sysName.0: is.good.beer.com
........
<SNIP>

I am running:

FreeBSD5.0
Apache-2.0.44
PHP-4.3.0
net-snmp-5.0.6

(I have also tried net-snmp-5.0.7, net-snmp-5.0.4, net-snmp-5.0.0 and
ucd-snmp-4.2.x with the same results.

#define NO_ZEROLENGTH_COMMUNITY 1 has been uncommented in net-snmp-5.0.6's
acconfig.h file

and PHP was configured with:

./configure --with-apxs2=/usr/local/apache2/bin/apxs --with-snmp=/usr/local
--with-gd=/usr/local --with-png-dir=/usr/local --with-zlib-dir=/usr/local

*whimper* help!

Has anyone seen this behaviour before? The scripts that I am using for
testing work fine on my windows server with php, apache, and mysql...any
suggestions aside from formating and rebuilding the box with an older OS and
apps?

Cheers,
Mike Lindsay
mike.l...@adexact.com

[pieter...@gmail.com]

Hi all

I encountered this problem today, and what had happened was that I copied/pasted the OID into the configuration file and for some reason the pasted characters were in UTF-8 whereas the rest of the file wasn't apparently.

I fixed this by deleting the line containing the pasted characters and manually typing in the OID

After that it worked fine.