Re: [nv-l] Disabling port 162 use

[James Shanks <jshanks@us.ibm.com>]

In order to use the Trap Service, you
have to be written to use one of the Microsoft APIs for the Trap Service,
such as SnmpMgrGetTrap.  That's the lowest level API. There are more
sophisticated ones to get SNMP V2 traps.

If you aren't written to do this,  but
expect to listen on port 162/udp  directly, then only one application
on the box can get traps, and it in turn must forward to all the other
trap receivers, else they get nothing.  

I don't understand exactly what  "The
system being set up wants an application other than ITSANM/NetView to be
picking up the SNMP traps from port 162."
means.  I think you are saying that you have some other application
that you want to put on the box and also get traps.  Well, it has
to be coded to use the Trap Service for this to be simple.    It
is isn't, then you will have trouble making the these apps co-exist.

If the other app can use another port,
then trapfrwd in NetView can be coded to send traps to that port on the
same box.  If it can't, and it has to own 162/udp, then the question
is, can it forward what it receives to another port on the same box?  If
not, then you are out of luck.

Do you follow this?  What application
are we talking about?  Can you ask its vendor about its capabilities?


James Shanks
Level 3 Support  for Tivoli NetView for UNIX and Windows
Tivoli Software / IBM Software Group

Johanna Hislop/Rochester/IBM@IBMUS
Sent by: owner-nv-l@lists.us.ibm.com

04/29/2004 02:54 PM

Please respond to
nv-l

To	nv-l@lists.us.ibm.com
cc	nv-l@lists.us.ibm.com, owner-nv-l@lists.us.ibm.com
Subject	Re: [nv-l] Disabling port 162 use

Thanks for the info.  I should have known that it was the trap service
using it.  The system being set up wants an application other than
ITSANM/NetView to be picking up the SNMP traps from port 162.  Should
both
applications be able to get the traps from the MS Trap Service without
having to make a choice over which application gets it and then has to
forward it to another application or have that application just go without?

-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Johanna Hislop | Software Development | IBM Tivoli Storage Area Network
Manager | 507-253-7647 | jhislop@us.ibm.com


                    
                     
                     
          
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                  Re: [nv-l]
Disabling port 162 use   
             04/29/2004 12:33    
                     
                   
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Actually, it isn't. Not by default any way. The Microsoft Trap Service
is.
And NetView's trapd uses an API to get traps from the Service.  Any
other
well-behaved MS app can do the same thing.  NetView started using
the Trap
Service back in Version 6, so that other apps could be installed on the
same Windows box and get traps too.  So normally there is no good
reason to
alter that.

But if you must, you can make him stop using the MS Trap Service and then
listen on any other port you choose by editing the Registry.
And this isn't recommended though possible.

Is this really what you want to do?    Why?



James Shanks
Level 3 Support  for Tivoli NetView for UNIX and Windows
Tivoli Software / IBM Software Group

                    
                     
                     
          
 Johanna Hislop/Rochester/IBM@IBMUS          
                     
       
 Sent by: owner-nv-l@lists.us.ibm.com          
                     
     
                    
                     
                     
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 04/29/2004 01:17 PM                
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                    nv-l
                     
       [nv-l] Disabling     
                    
                     
           port 162 use      
  
                    
                     
                     
          
                    
                     
                     
          
                    
                     
                     
          
                    
                     
                     
          
                    
                     
                     
          
                    
                     
                     
          
                    
                     
                     
          









How can I set up NetView 7.3 for Windows to not listen on port 162?

Thanks

-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------


Johanna Hislop | Software Development | IBM Tivoli Storage Area Network
Manager | 507-253-7647 | jhislop@us.ibm.com