Re: net-snmp as subagent

[Tania O. <ta...@ce...>]

Thank you very much, John and Dave, for your replies.


> You could check this by doing ls -l /var/agentx/master after
> starting the master agent up.  You should see something like:
>
> srwxr-xr-x   1 root     root            0 Jul 23 12:41 /var/agentx/master

I did this - it seems that /var/agentx/master is not being created at all.


>  So if the master agent is not the net-snmp master agent, then it is hard to
>
> say where the socket gets created.

So would it be correct to say that the master agent is responsible for
creating the socket completely independently of net-snmp?  That it is not done
inside one of the net-snmp library functions that the master calls (i.e.
init_agent(), init_snmp(), init_master_agent())?  I can't see any place in the
master agent code where the method of communication with the net-snmp subagent
is set up, so I am wondering if it is actually done inside one of those calls.
  I plan to try tracing through those calls today to see if I can figure out
what is going on.


>   My initial guess would be that the master agent doesn't have enough
> permissions to create /var/agentx/master.

I neglected to say earlier that I am running both the master and subagent as
root.


> Or possibly that it's listening on the AgentX TCP port (705) instead
> of the AgentX named pipe (/var/agentx/master)
>
> In which case, you'd have to run our subagent using
>
>         snmpd -X -x 705 .....

I tried this (with great excitement), but got:

subagent_pre_init: Invalid local port (Connection refused)

Thanks again.  If anything else comes to mind, please let me know.
Tania