[SNMP4J] Agent address in SNMPv2

Gibbons, Sean Sean.Gibbons at trueposition.com
Tue Jul 3 20:16:19 CEST 2007


I think it may have been removed for SNMPv2 because SNMPv2 uses a more
universal format, rather than SNMPv1 which has a format for regular SNMP
gets/sets and one for traps.  I guess if the agent IP address is
important, it can be sent as a variable binding in the SNMPv2 trap
message.

________________________________

From: Pavel Orehov [mailto:pavel.orehov at gmail.com] 
Sent: Tuesday, July 03, 2007 2:11 PM
To: Tassos Kontogiorgis
Cc: Gibbons, Sean; snmp4j at agentpp.org
Subject: Re: [SNMP4J] Agent address in SNMPv2


Hi,

Sorry guys, there is an AgentIP
http://www.tcpipguide.com/free/t_SNMPVersion1SNMPv1MessageFormat-3.htm
but only in SNMPv1 trap PDU. You even have the function in PDUv1.
setAgentAddress.
I thought that it also exist in SNMPv2. 
 
Anybody knows why it was removed from the PDU in SNMPv2 ? May be
security issues, so that the real peer address would be only valid agent
IP ?
 
Thanks,
Pavel
 
On 7/3/07, Tassos Kontogiorgis <tkontogiorgis at antcor.com> wrote: 

	I cannot also understand the AgentIP.
	I have faced the situation where a device has more than one
	interfaces/IPs and it chooses a specific one to send the PDU
over UDP, 
	possible the
	IP of the interface which is closer to the destination in the
layer-2
	network.
	
	Gibbons, Sean wrote:
	> I wasn't aware there is an AgentIP inside of a PDU.  As far as
I know, a
	> PDU contains a set of variable bindings, a message ID, an
error status, 
	> and an error position.
	>
	> -----Original Message-----
	> From: snmp4j-bounces at agentpp.org
[mailto:snmp4j-bounces at agentpp.org ] On
	> Behalf Of Pavel Orehov
	> Sent: Tuesday, July 03, 2007 10:02 AM
	> To: Tassos Kontogiorgis
	> Cc: snmp4j at agentpp.org
	> Subject: Re: [SNMP4J] Agent address in SNMPv2 
	>
	> I am afraid that it gived me the real peer that sended the UDP
message.
	> What I need is the AgentIP inside the PDU that might be
different from
	> the real one.
	>
	> On 7/3/07, Tassos Kontogiorgis < tkontogiorgis at antcor.com>
wrote:
	>
	>> Try getPeerAddress() from the ResponseEvent or the
	>> CommandResponseEvent() .
	>>
	>> Pavel Orehov wrote: 
	>>
	>>> Hi,
	>>>
	>>> I would like to know why there is no agentAddress members in
PDU ?
	>>>
	>>> The problem that I listen to SNMPv2 messages and I need
agentAddress 
	>>>
	>> from
	>>
	>>> the PDU and it is not exists.
	>>>
	>>> Thanks,
	>>> Pavel
	>>> _______________________________________________
	>>> SNMP4J mailing list
	>>> SNMP4J at agentpp.org
	>>> http://lists.agentpp.org/mailman/listinfo/snmp4j 
	>>>
	>>>
	>>
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