SNMPD not binding correctly

snmpsyslog

OS: Debian 5.0.3
SNMPD Version: 5.4.1

I have the following two lines in my snmpd.conf file:

interface eth0
agentaddress udp:161

I'm getting the following errors in my syslog:

Oct 5 18:04:44 webdb003 snmpd[29864]:
/etc/snmp/snmpd.conf: line 434: Error:
Missing TYPE parameter
Oct 5
18:04:44 webdb003 snmpd[29864]:
net-snmp: 1 error(s) in config
file(s)
Oct 5 18:04:44 webdb003
snmpd[29864]: Error opening specified
endpoint "udp:161"
Oct 5
18:04:44 webdb003 snmpd[29864]: Server
Exiting with code 1

The documentation here says that thats the correct syntax though. However, if I change it to agentaddress 127.0.0.1:161, I can properly snmpwalk the MIB listing when connecting to localhost. My issue is that I also want it to be able to snmpwalk on the public address too without having to specify a public address because I have to push out this config file to all my servers and I really don't feel like writing a config file for each server just because of the ip address differences.

Best Answer

You may want to double check that nothing in /etc/default/snmpd is over-riding your configuration. I think by default, the local loopback address (127.0.0.1) is passed in the SNMPDOPTS directive.

I could be mistaken, I just remember having to change that the last time I installed it for Cacti on a Debian system, but I think that was the prior version.

Related Solutions

Centos – Make Dell’s OpenManage 6.2 information available through SNMP

Here's a setup which now works

Install the repository

wget -q -O - http://linux.dell.com/repo/hardware/latest/bootstrap.cgi | bash
Install the required software

yum install net-snmp OpenIPMI srvadmin-all
Configure SNMP:

Here how our current snmpd.conf file look like

\# DELL Stuff
\# sec.name source community
com2sec notConfigUser default public

\# groupName securityModel securityName
group notConfigGroup v1 notConfigUser
group notConfigGroup v2c notConfigUser

\# Make at least snmpwalk -v 1 localhost -c public system fast again.
\# name incl/excl subtree mask(optional)
view all included .1
view systemview included .1.3.6.1.2.1.1
view systemview included .1.3.6.1.2.1.25.1.1

\# group context sec.model sec.level prefix read write notif
access notConfigGroup "" any noauth exact all none none

\# Added for support of bcm5820 cards.
pass .1.3.6.1.4.1.4413.4.1 /usr/bin/ucd5820stat

\# Allow Systems Management Data Engine SNMP to connect to snmpd using SMUX
smuxpeer .1.3.6.1.4.1.674.10892.1

SNMP over the internet

Here is a problem: You haven't actually allowed snmpd to respond to your connections.

com2sec national  x.x.x.x/23  public

You said that this IP address is the IP of the same server running snmpd, which means that only machines within that /23 will be allowed. This is almost certainly not what you want.

To resolve the issue, use the IP address of the machine(s) which will be sending the SNMP requests. If you have multiple IP addresses you will need multiple com2sec lines here. Or you can just use default and then use the firewall to control access.

Best Answer

Related Solutions

Centos – Make Dell’s OpenManage 6.2 information available through SNMP

SNMP over the internet

Related Topic