Re: How can I set a string

On Wed, 2005-06-15 at 03:49, flyeagers wrote:
> I'm a beginner in SNMP.And I follow the examples of NET-SNMP-5.2.1

If you're just starting out (rather than maintaining existing code),
we'd strongly suggest that you use the new "handler-based" MIB API
mechanism, rather than the old v4 REGISTER_MIB approach.

> I can get string of the target snmpd from remote host and I can
> also send a command to make target snmpd run a command.
> Now I can use snmpget to get the string,but I can not set the string.

The command

mib2c -c mib2c.scalar.conf MY-MIB::cmdstr

should generate a suitable template structure for you,
including basic SET support.

> Once I run snmpset command in remote host, the target snmpd will
> terminate automatically.

That would probably indicate a coding error - possibly following
a NULL pointer without checking it first.

> Who can tell the error in my codes and tell what does these
> mean such as RESERVE1,RESERVE2,UNDO,COMMIT,FREE,ACTION
> in write method?

Please read the file 'AGENT.txt' (which still covers the old v4
mechanism that you've been working with - but the multi-pass SET
processing is still used in the v5 APIs too).

> And how can I run a command such as "ls -l" ?

"run_shell_command"

> Here's the MIB:
> MY-MIB DEFINITIONS ::=
> BEGIN
>
> IMPORTS
> enterprises FROM RFC1155-SMI
> OBJECT-TYPE FROM RFC-1212
> DisplayString FROM RFC1213-MIB;

You're missing the "MODULE-IDENTITY" definition.

Dave



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