What do I need to put into my configuration file(s)?
I'm running net-snmp 5.4.1. I want to register an OID for a subagent
with a particular context (because I need to register the same OID
for other subagents with other contexts). It works for snmpv1, but of
course my application requires it to work for snmpv3.
After trying everything -- I am very new to SNMP -- I finally got the
Master Agent to forward the request to the subagent when I copied the
createUser line from snmpd.conf to subagent1.conf. It works, but with
a blank context.
I set the context in my subagent by using this code (which came from
a Solaris demo_module_6):
myreg = netsnmp_create_handler_registration(
"elementName",
get_elementCallback,
element_oid,
OID_LENGTH(element_oid),
HANDLER_CAN_RONLY);
myreg->contextName = "myContext";
netsnmp_register_read_only_instance(myreg);
but the subagent message to the Master Agent does not include the
context string, so of course the Master Agent is unable to recognize
that a GET should be forwarded to my subagent. Instead it decides
VACM_NOSUCHCONTEXT. What do I need to configure to make this happen?
The following command, as I said, works with v1 or with no context:
snmpget -r 1 -mALL -v 3 -u myuser -n "context" -l authNoPriv -A
"my_password" localhost .elementName
Richard Freedman
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