[AGENT++] how long can a oid be?
OELoo Jerry
oyljerry at hotmail.com
Mon Jan 24 07:07:19 CET 2005
Hi Fock
Thanks for your answer!
yes,I have found some bugs in my code which cause the problem as i have
sayed. i have checked it
but ,i still have a question about oid ^_^ i have tested me code :
i use the oid "1.155.1.2.4.1.3.1.10.31.4.3.9" as the snmpget when i
receive the snmp request i trace the oid i receive it shows
"3.10.4.1.3.1.10.31.4.3.9" it looks like the string have been modified when
transmitting , i change the oid to "1.1.155.1.2.4.1.3.1.10" it works ok
,but if i change the oid to "1.99.1.2.4.1.3.1.10.31.4.3.9" or
"158.1.2.4.1.3.1.10.31.4.3.9.1" and described above. i found if the two
front oids are bigger than some value , when i receive, the oids show not
same as the send oid ??
it is so strange , i do not know why?
any hints will be appreciated!
thanks in advance!
Jerry
>From: Frank Fock <fock at agentpp.com>
>To: OELoo Jerry <oyljerry at hotmail.com>
>CC: AGENTPP at agentpp.org
>Subject: Re: [AGENT++] how long can a oid be?
>Date: Sat, 22 Jan 2005 14:33:03 +0100
>
>Hi Jerry,
>
>A SNMP OID can contain up to 128 sub-identifiers.
>So in your case, I suspect the bug to be caused by
>something else. By analysing the stack trace with
>a debugger you should be able to find the real
>cause quite easy.
>
>Best regards,
>Frank
>
>OELoo Jerry wrote:
>
> > Hi all
> > i have meet some problem with the snmp++ and agent++. i have make two
> > simple exes-getexe and proxyexe with MSVC,the former send the get
> > request,the later receive the request and send the response.
> > when i make the oid as "1.3.6.1.2.1.1.1.1.0" or
> > "1.3.6.1.2.155.1.1.0",both exes work ok,but when i make it as
> > "1.11.1.2.1.1.31.14.3.9" the proxyexe will be access violation....i
> > have tested some oid,i found if the oid is longer than some length the
> > proxyexe will crash ....
> > so why it is ? if there is a length limit for the oid ? thanks in
advance
> > any hints will be appreciated
> >
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