[AGENT++] MAX_SNMP_PACKET?

[Dan]

Thanks for the response.

I noticed that with SNMPv3 the manager sets what the max response can be,
but I'm using SNMPv2c, which I don't believe has that feature.  However,
even if I was using SNMPv3, my manager is set to have a max response size of
64k (max UDP size - I set it super-high to make sure that wasn't the
problem).

After a long chase through the source code of agent++ and snmp++, and adding
a bunch of LOGs to help debug what was going on, I finally got it working.
I think the problem was that snmpmsg.cpp was not being recompiled with my
make -f Makefile.linux from within snmp++/src.  After adding some LOGs to
that file, it forced it to get recompiled and then it started working
right.  Now I do a make clean -f Makefile.linux whenever changing a define!

-Dan






On 11/19/06, Jochen Katz <katz at agentpp.com> wrote:
>
> Hi Dan,
>
> > How can one increase the maximum allowed size of packets that can be
> sent
> > from agent++?  I found that config_snmp_pp.h has MAX_SNMP_PACKET defined
> at
> > 4096 - I tried modifying that and recompiling to no avail.  My big 10k
> snmp
> > response still doesn't get sent.  I believe it's getting rejected as too
> > big
> > somewhere in the Snmpx send method, but I can't find where.  Help?
>
> with snmp++v3.2 only MAX_SNMP_PACKET has to be changed and after a
> complete rebuild the new limit will be active.
>
> What manager and SNMP version do you use: For SNMPv3 requests, the
> manager can/has to set the max-size-response-pdu value.
>
> Regards,
>   Jochen
>
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