> For the complete documentation index, see [llms.txt](https://tmediadocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tmediadocs.telcobridges.com/operations-and-support/troubleshooting/field-notices/fn17753-net-snmp-restarts-and-is-generating-core-files.md).
# 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
If you have version previous to this one (5.3.2.2-25), you are affected by this Field Notice.
## 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
1. TelcoBridges-Base.repo
2.
3. This repository is using TelcoBridges frozen version of CentOS
4. to help client installing the required version of the
5. applications required to run Toolpack
6.
```
[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
```
1. released updates \[tb-updates] name=TelcoBridges-$releasever - Updates baseurl= 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 wget
* 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:
* 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
## References
RPM release note for net-snmp-utils-5.3.2.2-25
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