Re: MFD agent and agentX

On Thu, 2007-05-10 at 10:14 +0100, Dave Shield wrote:
> On 09/05/07, Shawn McManus <[email protected]> wrote:
> > I run the ifTable agent and see
> > in the output:
> >
> > NET-SNMP version 5.3 AgentX subagent connected
> > registering pdu failed: 263!
> 
> That's most likely due to an existing registration for the ifTable
> in the master agent.  If there are two identical registrations, then
> the second one will be rejected as a duplicate.
> 
> If you run the master agent but *don't* start your subagent,
> can you walk the ifTable anyway?
>   (Just to be sure, can you walk any of the other network-related
> tables, such as the udp or tcp groups?)

Without my subagent, I can't see anything in the IF-MIB, nor tcp or udp.
The out-of-the-box config on FC5 gives a very basic mib2 list:

SNMPv2-MIB::sysDescr.0
SNMPv2-MIB::sysObjectID.0
DISMAN-EVENT-MIB::sysUpTimeInstance
SNMPv2-MIB::sysContact.0
SNMPv2-MIB::sysName.0
SNMPv2-MIB::sysLocation.0
SNMPv2-MIB::sysORLastChange.0
SNMPv2-MIB::sysORID.1
SNMPv2-MIB::sysORID.2
SNMPv2-MIB::sysORID.3
SNMPv2-MIB::sysORID.4
SNMPv2-MIB::sysORID.5
SNMPv2-MIB::sysORID.6
SNMPv2-MIB::sysORID.7
SNMPv2-MIB::sysORID.8
SNMPv2-MIB::sysORDescr.1
SNMPv2-MIB::sysORDescr.2
SNMPv2-MIB::sysORDescr.3
SNMPv2-MIB::sysORDescr.4
SNMPv2-MIB::sysORDescr.5
SNMPv2-MIB::sysORDescr.6
SNMPv2-MIB::sysORDescr.7
SNMPv2-MIB::sysORDescr.8
SNMPv2-MIB::sysORUpTime.1
SNMPv2-MIB::sysORUpTime.2
SNMPv2-MIB::sysORUpTime.3
SNMPv2-MIB::sysORUpTime.4
SNMPv2-MIB::sysORUpTime.5
SNMPv2-MIB::sysORUpTime.6
SNMPv2-MIB::sysORUpTime.7
SNMPv2-MIB::sysORUpTime.8
HOST-RESOURCES-MIB::hrSystemUptime.0
HOST-RESOURCES-MIB::hrSystemUptime.0

> What happens if you try a GET request for ifTable data that you know is
> valid?   It might be worth turning on packet dumps in your subagent,
> and see whether it receives anything or not.

When I enable -Dall in the ifTable agent, I don't see packets coming
from the master.  I see the agentX registration, but no packets.

I'm starting to suspect a master agent config issue.  When I run snmpd
from the command line and then do an snmpwalk, the agent dumps:

  Connection from UDP: [localhost]:33291

for each getnext.  But when I try

  snmpget -v2c -c public localhost IF-MIB::ifIndex.0

I don't see the "connection" message at the master agent.  If I run that
same command when the ifTable agent is connected to port 161, I see the
"connection" message and the get works.

  Shawn


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