James,
Thanks for the directions you gave me.
I think that we can conclude that trapd can receive v2 traps.
The $G(generic trap type) and the $S(specific trap type) were correctly
presented. So was the $1.
The $S is packed in another way in v2, so trapd can handle that.
I your discussion with Bob Natale you said:
>but I frankly don't see any real reason, as opposed to an academic one, to
go
>from the a4 structure to the a7. Yes, it normalizes the SNMP PDU
structure,
>but that doesn't do the user any more good, so far as I can see.
The reasons for changing to v2(and someday to v3) are not always technically
driven.
Customers are requesting systems build according the latest specifications.
As a supplier you have to follow, whether you like it or not.
Laurens Rauwers
HITT
> -----Original Message-----
> From: James Shanks [SMTP:James_Shanks@TIVOLI.COM]
> Sent: Wednesday, February 09, 2000 3:55 PM
> To: NV-L@UCSBVM.UCSB.EDU
> Subject: Re: trap daemon: can it receive SNMPv2 and SNMPv1 traps?
>
> Well, the first thing I would do is edit the format in trapd.conf (using
> xnmtrap) and just change it to say something like
> "Trap $G $S received: $*" so that what you get in the event window is
> the
> generic and specific id and all the variables listed. That will tell you
> whether or not the variables you were trying to format were really there
> or
> not.
>
> If you still think there is a problem, then you will have to call
> Support. But
> first I would get a hex trace of the incoming trap. Use the Tivoli
> desktop (or
> SMIT) to set the "hex dump of all packets" option on the trapd daemon.
> This
> will cause him to write those to the trapd.trace log. Once trapd is
> running
> with this option ( -x) you can control when he traces by issuing the
> command
> "trapd -T " from the command line to toggle the tracing on and off.
> Support
> will need the hex dump of the incoming trap , as well as your trapd.conf
> to
> figure things out.
>
> James Shanks
> Tivoli (NetView for UNIX) L3 Support
>
>
>
> "Rauwers, Laurens" <rauwers@HITT.NL> on 02/09/2000 08:37:51 AM
>
> Please respond to Discussion of IBM NetView and POLYCENTER Manager on
> NetView
> <NV-L@UCSBVM.UCSB.EDU>
>
> To: NV-L@UCSBVM.UCSB.EDU
> cc: (bcc: James Shanks/Tivoli Systems)
> Subject: Re: trap daemon: can it receive SNMPv2 and SNMPv1 traps?
>
>
>
>
> James,
>
> First of all, when I talk about SNMPv1 and SNMPv2, I use the phrases used
> in
> Dave Perkins book understanding MIB's.
> A v2 trap there has the SNMP type a7.
> That type we saw coming from a UCD agent. We try to set it(the agent) to
> SNMPv1 traps(should be possible according the man page) but that didn't
> work, no traps at all were sent then.
> So we're forced to v2 by the UCD agent.
> In the event window(control desk) we see: "FMT ERROR: accessing element
> #2,
> only 1 available" and "FMT ERROR: accessing element #4, only 1 available"
> for a trap(type a7).
> Because we're not quite sure about the values in the var binds I raised
> this
> question.
> Hope this clarifies the question.
>
> THanks.
> Laurens Rauwers
> HITT
> > -----Original Message-----
> > From: James Shanks [SMTP:James_Shanks@TIVOLI.COM]
> > Sent: Wednesday, February 09, 2000 1:53 PM
> > To: NV-L@UCSBVM.UCSB.EDU
> > Subject: Re: trap daemon: can it receive SNMPv2 and SNMPv1 traps?
> >
> > You need to explain what you mean by this.
> >
> > First, technically speaking, there are NO traps in SNMP V2, because SNMP
> > V2 does
> > not recognize the trap designation (SNMP type a4) as supported. SNMP V2
> > hatched a concept called "notifications" and another called "reports"
> > which were
> > meant to replace traps. But no vendors, so far as I know, went along
> with
> > this
> > and thus traps are alive and well today.
> >
> > Second, trapd does have code to recognize when an agent says it is using
> > SNMP V2
> > as opposed to V1, but there should be no difference in the varbind
> > structure.
> > They are still "type-length-value" with the encoding done by the same
> > Basic
> > Encoding Rules of ASN.1.
> >
> > So unless you can be more specific here, I would suggest opening a
> problem
> > to
> > Support.
> >
> > James Shanks
> > Tivoli (NetView for UNIX) L3 Support
> >
> >
> >
> > "Rauwers, Laurens" <rauwers@HITT.NL> on 02/09/2000 06:34:48 AM
> >
> > Please respond to Discussion of IBM NetView and POLYCENTER Manager on
> > NetView
> > <NV-L@UCSBVM.UCSB.EDU>
> >
> > To: NV-L@UCSBVM.UCSB.EDU
> > cc: (bcc: James Shanks/Tivoli Systems)
> > Subject: trap daemon: can it receive SNMPv2 and SNMPv1 traps?
> >
> >
> >
> >
> > Hello,
> > we have NV 5.1.2.
> > Is trapd able to receive SNMPv1 as well as SNMPv2 traps in a correct
> way?
> > We are having trouble receiving v2 traps, it looks like that it is not
> > recognizing all the PDU varbinds.
> > Thanks for your reply.
> >
> > Laurens Rauwers
> > HITT
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