Wes,
I am working off 5.1.1. Doesn't look like that version uses this method, is that
correct? Can I use version 5.1.1? Will this work for SNMP V1 and V2c as well as
V3?
Thanks
Glenn
Quoting Wes Hardaker <[EMAIL PROTECTED]>:
> >>>>> On Mon, 27 Jun 2005 14:03:53 -0400, Glenn MacGregor
> <[EMAIL PROTECTED]> said:
>
> Glenn> I originally wanted to do this by knowing the ip address that
> Glenn> was queried then I could go to the correct device and get the
> Glenn> correct value. There is no way to know the address that was
> Glenn> queried when the request gets to the subagent. So the use of
> Glenn> context's was suggested. Can anyone point me in the direction
> Glenn> of some docs on using contexts for this?
>
> snmptrapd actually does this now with the usmUserTable. It is a
> subagent to the main snmpd agent. The snmpd agent has its own copy of
> the usmUserTable which is *different* than the copy that snmptrapd
> has. Functionally, this happens when the snmptrapd application
> eventually calls this routine (which is inside
> init_register_usmUser_context):
>
> register_mib_context("snmpv3/usmUser",
> (struct variable *) usmUser_variables,
> sizeof(struct variable4),
> sizeof(usmUser_variables)/sizeof(struct
> variable4),
> usmUser_variables_oid,
> sizeof(usmUser_variables_oid)/sizeof(oid),
> DEFAULT_MIB_PRIORITY, 0, 0, NULL,
> "snmptrapd", -1, 0);
>
> IE, the function registers itself in the "snmptrapd" context for the
> usmUser table. It thus doesn't conflict with the agent's
> usmUserTable, which is registered at the default "".
>
> Now I can access both tables from the same master agent:
>
> # snmpgetnext localhost usmUserTable
> SNMP-USER-BASED-SM-MIB::usmUserSecurityName.\"[EMAIL PROTECTED]".\"wes\" =
> STRING: wes
>
> # snmpgetnext -n snmptrapd localhost usmUserTable
> SNMP-USER-BASED-SM-MIB::usmUserSecurityName.\".."\".\"user\" = STRING: user
>
>
> As you can see, two different sets of data.
>
> --
> Wes Hardaker
> Sparta, Inc.
>
Glenn MacGregor
HighStreet Networks
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