Re: Agentx timeout no response

Hi again,

My problem was linked to the Udp port which is not aligned with the Configuration file. 

B/R 
Phil

> Le 10 déc. 2019 à 07:31, Philippe DENIS <[email protected]> a écrit :
> 
> Hi again,
> 
> By modifying the Udp port, I’ve succeeded to get an answer from snmpget -v  2c -c MyComRO system.sysLocation.0
> 
> But when I’m sending a request linked to my MIB. I still have the timeout.
> 
> In order to know what part is not working correctly I typed the tcpdump -vv -i lo and the requests are sent and received at snmpd level. 
> 
>  What’s wrong ?
> 
> Do I have to configure it wit a specific option? 
> 
> Do you have a tips in order to fix it or a clue linked to the problem ?
> 
> Thanks by advance.
> 
>> Le 9 déc. 2019 à 21:20, Philippe DENIS <[email protected]> a écrit :
>> 
>> 
>> Hello all,
>> 
>> I've a problem to communicate with my agentx.
>> I've set the MIBS environment variable by typing 'export MIBS=ALL'
>> 
>> First, I write a small mib containing 2 objects (counter1 and counters2).
>> Thanks to the mib2c tool, i've generated the C code and update the data needed.
>> I follow all the steps needed in order to configure the master agent, make and make install.
>> All these steps succeeded and through another console I was able to send 'snmpget' command and get an answer.
>> 
>> Following this, I've created a daemon by following the tutorial on site 'Writing a subagent'.
>> My daemon is working, I've compiled it and see that the reading of the shared memory is done every time a value is updated in the shared memory.
>> 
>> To launch the snmpd, I use the following command line:
>> snmpd -Dagentx -f -Lo -C -c /usr/local/share/snmpd.conf --agentXSocket=tcp:localhost:1705 udp:1161
>> 
>> registered debug token agentx, 1
>> Log handling defined - disabling stderr
>> agentx_register_app_config_handler: registering .conf token for "agentxsocket"
>> agentx_register_app_config_handler: registering .conf token for "agentxperms"
>> agentx_register_app_config_handler: registering .conf token for "agentxRetries"
>> agentx_register_app_config_handler: registering .conf token for "agentxTimeout"
>> Turning on AgentX master support.
>> agentx/config: port spec: /var/agentx/master
>> agentx/config: port permissions: 777 777
>> agentx/config: socket permissions: 777 (511)
>> agentx/config: directory permissions: 777 (511)
>> agentx/config: port spec: tcp:localhost:1705
>> agentx/master: initializing...
>> agentx/master: initializing...   DONE
>> NET-SNMP version 5.
>> 
>> See below the content of the snmpd.conf located in /usr/local/share/snmpd.conf
>> 
>> master agentx
>> agentxsocket /var/agentx/master
>> agentxperms 777 777
>> 
>> rocommunity MyComRO
>> rwcommunity MyComRW
>> syscontact [email protected]
>> syslocation 1st Floor / Town / Country
>> 
>> com2sec readonly default public
>> com2sec readwrite default private
>> rocommunity public
>> rwcommunity private
>> 
>> I've checked, I haven't a snmpd.conf file in /etc/snmp.
>> 
>> I'm quite lost, it looks that snmpd is not correctly configured.
>> Moreover, I don't really understand, why when I'm typing the following command, snmpget -v 2c -c MyComRO localhost system.sysLocation.0 
>> I've also a "Timeout:no response from localhost".
>> 
>> I've also checked that the Shared Memory is correctly created and available.
>> 
>> Do you have any clue in order to debug it or to understand what is not correctly configured?
>> Do I have to clean the snmpd workspace ?
>> 
>> By advance thanks for your help.
>> -- 
>> Best Regards.
>> Phil

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