Vince Rosso@TRANSALTA
02/10/98 11:26 AM
James thanks for the reply. I'm not quite sure I have a grasp on this
whole thing so I will mull it over some more before I ask my next question.
To be sure there will be more questions.
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Subject: Re: Query More Than One Port
No, I did not say trapd can listen to more than one port (per protocol --
udp or tcp). But you can pick what that is in /etc/services. What I said
was that there are two cases where this would work, but as I do not know
how either of those agents behave, I cannot say which is better, or even if
either will work.
Case 1: both agents get traps off some port of their chosing, say 162/udp
and 200/udp, but both are configured to send them out again to another
port, say 300/udp, and this is what is configured in /etc/services for
trapd. I don't know if the agents can do this. This is very similar to
how the Optivity Fault Correlator works. He gets all the external traps
and decides which ones to forward to NetView. Note that he does not get
the netmon traps which are sent via tcp. Your agents will not get them
either.
Case 2: trapd listens on the standard port 162/udp and all traps come to
him first. But you configure trapd to forward traps to ports 200/udp and
300/udp, which are what these other agents are listening to respectively.
Can they do that? I don't know.
In either case, you can configure trapd to forward to the host and port you
want as a daemon option, and you then configure which traps are to be
forwarded in the Event Browser.
If neither of these two scenarios is possible with these agents, then they
cannot run on the same box as NetView.
James Shanks
Tivoli (NetView for UNIX) L3 Support
Vince Rosso <Vince_Rosso@TRANSALTA.COM> on 09/30/98 07:04:57 PM
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Subject: Re: Query More Than One Port
Vince Rosso@TRANSALTA
30/09/98 05:04 PM
Are you saying that trapd can listen to more than one port. I checked out
the services file and see the definition for trapd on port 162. Can I
just insert another line so it is also looking at port 200?
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Subject: Re: Query More Than One Port
I know nothing about those agents. But I do know that trapd can forward
traps to any udp port you like. So he could get them first and forward to
these agents, or he could be set to listen to a different port altogether
(in /etc/services) if they can forward to him
James Shanks
Tivoli (NetView for UNIX) L3 Support
Vince Rosso <Vince_Rosso@TRANSALTA.COM> on 09/30/98 12:06:35 PM
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Subject: Re: Query More Than One Port
Vince Rosso@TRANSALTA
30/09/98 10:06 AM
The 2 agents we are looking at are the PEER SNMP Agent for an application
called Genesys and the Native NT Agent. I'm not sure if that gives you
enough information.
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Subject: Re: Query More Than One Port
A udp port can be owned by just one application at a time. And trapd
listens to the one you tell him to in /etc/services. The case you describe
requires one trap receiver to forward the traps to another. What agents
are involved?
James Shanks
Tivoli (NetView for UNIX) L3 Support
Vince Rosso <Vince_Rosso@TRANSALTA.COM> on 09/29/98 03:43:28 PM
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Subject: Query More Than One Port
Vince Rosso@TRANSALTA
29/09/98 01:43 PM
We have a situation where we need to run 2 different application specific
snmp agents on a managed node. My understanding is that managed nodes
converse with Netview (v4.1) through port 162. I don't believe 2 agents
can share the same port. I believe we can specify a unique port on the
node for each agent ie. port 162 and port 200. Can Netview be configured
to recognize 2 different agents on the same node with unique port numbers?
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