FN17753 - Net-SNMP restarts and is generating core files

Affected Products

• TMG800, TMG3200, TMG7800-CTRL
• Tdev Linux server with (CentOS, RedHat, etc) running Toolpack software

Problem Description

• snmpd process continuously restarts in a loop.
• System which are shipped before April 2015 requires this fix.
• This fix is applicable if you have an older net-snmp version than below. To verify:

[root@TB011107 tbsnmpagent]# rpm -qa | grep snmp
net-snmp-libs-5.3.2.2-25.el5.tb
net-snmp-utils-5.3.2.2-25.el5.tb
net-snmp-5.3.2.2-25.el5.tb

Problem Symptoms

• core files are observed in tbsnmpagent directory:

/mnt/.0/tb/toolpack/setup/12358/2.8/apps/tbsnmpagent

Solution

Online Procedures

Applicable if the system has internet access with proper DNS configuration and is able to reach the TelcoBridges repositories server.

• Stop Toolpack

tbtoolpack stop

• Make sure your system is pointing to the TelcoBridges repositories. Verify the following TelcoBridges repository file:

vim /etc/yum.repos.d/TB-Base.repo

# TelcoBridges-Base.repo
#
# This repository is using TelcoBridges frozen version of CentOS
# to help client installing the required version of the
# applications required to run Toolpack
#

[tb-base]
name=TelcoBridges-$releasever - Base
baseurl=http://repo.telcobridges.com/centos/5/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

#released updates
[tb-updates]
name=TelcoBridges-$releasever - Updates
baseurl=http://repo.telcobridges.com/centos/5/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5-tb

• Get TelcoBridges repository key. If you don't already have them.

cd /etc/pki/rpm-gpg/
wget http://repo.telcobridges.com/centos/RPM-GPG-KEY-CentOS-5
wget http://repo.telcobridges.com/centos/RPM-GPG-KEY-CentOS-5-tb 

• Update your net-snmp to the latest version

yum update net-snmp*

• Verify the updated net-snmp version. You should see:

[root@TB011107 tbsnmpagent]# yum list net-snmp
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * tb-base: repo.telcobridges.com
 * tb-updates: repo.telcobridges.com
Excluding Packages in global exclude list
Finished
Installed Packages
net-snmp.x86_64                   1:5.3.2.2-25.el5.tb                         installed

• Start Toolpack

tbtoolpack start

Offline Procedures

Applicable for systems which are behind the firewall in a private network without internet access.

• Stop Toolpack

tbtoolpack stop

• Remove net-snmp. Confirm removal with "Y" when prompted.

yum remove net-snmp

• Manually install below RPMs:

rpm -ivhU net-snmp-libs-5.3.2.2-25.el5.tb.x86_64.rpm
rpm -ivhU net-snmp-5.3.2.2-25.el5.tb.x86_64.rpm
rpm -ivhU net-snmp-utils-5.3.2.2-25.el5.tb.x86_64.rpm

• Above files can be found at:

http://repo.telcobridges.com/centos/5/os/x86_64/CentOS/

• Verify the updated net-snmp version. You should see:

[root@TB011107 tbsnmpagent]# yum list net-snmp
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * tb-base: repo.telcobridges.com
 * tb-updates: repo.telcobridges.com
Excluding Packages in global exclude list
Finished
Installed Packages
net-snmp.x86_64                   1:5.3.2.2-25.el5.tb                         installed

• Start Toolpack

tbtoolpack start