------------------ Original ------------------
From: "Dave Shield"<[email protected]>;
Date: Tue, Jan 26, 2010 05:54 PM
To: "Alexander King"<[email protected]>;
Cc: "net-snmp-users"<[email protected]>;
Subject: Re: when snmpwalk query my private trap OID the snmpd routine auto
termination
Thank you for providing the full code.
Compiling this, it became clear very quickly that the problem
is nothing to do with the handling of notifications.
I tried the following:
- Commented out all of the code relating to traps;
compiled the agent;
walked your subtree.
This listed the first four scalars (up to systemType)
and then the agent crashed.
- Restarted the agent;
Issued a GET request on
The agent crashed again.
- Restarted the agent;
Issued a GET request on
The agent crashed again.
>>>>i had deleted all the code related to the two objects(in mib file,register
>>>>function,traps),and I re-compiled the source use
./configure --with-mib-modules="uit"
make
make install
reboot the system,and I can walk all the info use MG-soft,the snmpd didnot auto
termination ,the walk result are quite right(not systemJBODNumber.0 and
systemStatus.0) But I didnot reveived one trap!I think it is maybe something
wrong config or something,so I use
ps aux |grep snmpd|grep -v grep|awk '{print $2}'|xargs kill
ps aux |grep snmptrapd|grep -v grep|awk '{print $2}'|xargs kill
/usr/local/sbin/snmpd -C -c /usr/local/share/snmp/snmpd.conf -M
/usr/local/share/snmp/mibs/
/usr/local/sbin/snmptrapd -C -c /usr/local/share/snmp/snmptrapd.conf
via CLI,but the snmpd daemon down quickly!is it something with my config file?
I checked the handler function on systemJBODNumber and systemStatus,objectively
speaking,I hadnot found something apparently wrong contrast to the other object
handler function.I will check it more carefully again later.
Alex
- Commented out the registration of these two objects;
compiled the agent;
walked your subtree.
This complete successfully.
You need to look more closely at the handler routines for
these two MIB objects.
Some more general advice:
Don't try to implement the whole MIB in one go. Build it up piece by piece.
Start with the code for the scalar objects - and check each of these
individually (using "snmpget"). Once your happy that these work in
isolation, run "snmpwalk" on the whole lot to make sure things are OK.
Then move on to the table
Once you're happy that the main management objects are working
properly - *then* (and only then) is it sensible to start thinking about
the notifications.
Trying to do everything in one go - particularly when you are not
very experienced - is simply asking for trouble.
There's also a problem with the implementation of the IP address
and PhysAddress objects. These are meant to be *binary* strings,
not text strings. You need something like
unsigned char ipaddress[] = {201, 201, 201, 201};
unsigned char macaddress[] = {0, 0x0c, 0x29, 0xd5, 0xbc, 0xb7 };
and then use "sizeof" rather than "strlen" in the handler routines.
But the basic problem is in the handler routines for the Status and
JBODNumber objects.
Dave
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