Also, a user configured with a remote engineID in order to support V3 inform
messages, as described below, would never be able to perform other SNMP
operations (GET, GET-NEXT, SET) because the authoritative engineID would not
match the target, correct?
From: Atkins, Brian
Sent: Monday, October
ined using a createUser directive in the persistent
config file. However, since the localized keys will be generated before the
inform requests are sent, it's impossible to rely on the engineID probe
behavior to learn the target engineID, correct? The engineID may be correct,
but the loca
can use it as they wish
- Now there should be a seamless way to integrate traps into application
something like, pre-agreed engineid. I should be able to send traps with
pre-agreed engineid, so that application does not have to access actual hw (
why not to access actual hw is explained below
use it as they wish
- Now there should be a seamless way to integrate traps into application
something like, pre-agreed engineid. I should be able to send traps with
pre-agreed engineid, so that application does not have to access actual hw (
why not to access actual hw is explained below
Hello,
In /etc/snmp/snmpd.conf, I configured by following snmpd.conf.example
engineID "BQTP45000357"
After I started snmpd, saw oldEngineID is generated in /var/lib/net-snmpd
engineBoots 1
oldEngineID 0x80001f88042242515450343530303033353722
Have a couple questions here.
1st que
Hi All,
I am using the net-snmp 5.5-54 version from centOS.
My issue is related to SNMPv3 trap message. I have multiple agent configured
with different engine id for each.
Inside snmpd.conf of each I added trapsess entry with -e flag.
I have created the user with each engine_id of the agent
Hi Folks,
I am implementing traps and have changed 1-4th octet of engineID
(0x80000300b0ad01) with my company's enterprise oid and added the
same engineID (0x80000300b0ad01) in snmptrapd.conf. But
trapreceiver 'snmptrapd' shows usm: no match on engineID .
Please let me know
Pushpa Thimmaiah pushpa.thimma...@gmail.com writes:
I am implementing traps and have changed 1-4th octet of engineID
(0x80000300b0ad01) with my company's enterprise oid and added
the same engineID (0x80000300b0ad01) in snmptrapd.conf. But
trapreceiver 'snmptrapd' shows usm
Pushpa Thimmaiah pushpa.thimma...@gmail.com writes:
I got it. 1st bit is SNMPv2c/v3, 1-4octet enterprise id, 5th format
indicator.
There are actually multiple formats for the engineID. See the
SnmpEngineID textual convention in the SNMP-FRAMEWORK-MIB.txt mib.
--
Wes Hardaker
Parsons
: USM processing begun...
USM processing begun...
usm: usm: match on user traptest1
match on user traptest1
*usm: no match on engineID* (80 00 xx xx 03 00 B0 AD 00 00 01 usm: no match
on engineID (80 00 xx xx 03 00 B0 AD 00 00 01 )
)
usm: usm: match on user traptest1
match on user traptest1
usm: usm
for the engineID. See the
SnmpEngineID textual convention in the SNMP-FRAMEWORK-MIB.txt mib.
--
Wes Hardaker
Parsons
--
Dive into the World of Parallel Programming! The Go Parallel Website,
sponsored by Intel and developed
Hi,
I got it. 1st bit is SNMPv2c/v3, 1-4octet enterprise id, 5th format
indicator.
On Mon, Dec 1, 2014 at 3:54 PM, Pushpa Thimmaiah pushpa.thimma...@gmail.com
wrote:
Hi Folks,
I am learning NetSnmp SNMPv3 functionalities
Can anyone tell me what informations a engineID consists of ? Eg
Hi Folks,
I am learning NetSnmp SNMPv3 functionalities
Can anyone tell me what informations a engineID consists of ? Eg engineID
0x81020304
Thanks in advance
--
Download BIRT iHub F-Type - The Free Enterprise
Hi All,
We are using net-snmp 5.7.1 but we did not use -e option so engineID probing
is happening for every inform request.
We have seen an issue in our customer site that inform request was not received
by Manager.
When we checked the snoop logs on Manager side. Observed that get-request
Hi,
is it possible to use the snmpusm tool to clone a user with a different
engineID than the template user ? And if yes, can you please give an
example on how to do that, or give a reference to a webpage or document
which explains how to do that ?
Background:
This feature is useful
HI
I want to ask about engineID SNMPtrap.conf in SNMPV3 . when we want to senf
snmpv3 trap we should set engineID for it
but what is this ID exactly? and if I have some user that they want to send
trap one device they have different engineID?
thanks
mohamad hosein jafari smhjafar...@gmail.com writes:
I want to ask about engineID SNMPtrap.conf in SNMPV3 . when we want to senf
snmpv3 trap we should set engineID for it
It's fairly well explained here:
http://www.net-snmp.org/wiki/index.php/TUT:snmptrap_SNMPv3
Reading that will help you
Hello
Wondering if anyone can tell me how I would find out the EngineID of a Spectrum
NMS?
Seems like it must have one, I just can't find it anywhere.
Thanks in advance.
Martin
---
Martin Foote
martin_fo...@hotmail.com
: Tuesday, August 30, 2011 6:03 PM
To: Gary Dunlap
Cc: Wes Hardaker; net-snmp-users@lists.sourceforge.net
Subject: Re: SNMPv3 EngineID Changed to Random Format?
On Wed, 10 Aug 2011 09:20:56 -0600, Gary Dunlap gary.dun...@dothill.com
said:
GD I did notice in experimenting
at all. Otherwise
the oldEngineID line should make it read the previous engineID even if
the engineIDType line is missing.
--
Wes Hardaker
SPARTA, Inc.
--
Special Offer -- Download ArcSight Logger for FREE!
Finally, a world
will *keep* the engineID that it knows it used in
the past, regardless of what the settings say to do (long story, but
this is actually a good thing). If you ever started it up in the past
before changing the .conf file, you'll need to manually wipe out the
'oldEngineID' line from /var/net-snmp
with more
debug tokens, it returned to using the MAC format.
I noticed that the MAC address is obtained using socket() and ioctl() calls.
Is it possible that these could fail, depending on what's happening on the
processor, and the engineID default to random? I didn't notice such logic
On 5/24/2011 3:53 PM, Adrian Bica wrote:
I have an embedded system running a snmpd server. It has it's own engineID
generated from MAC address as instructed by snmpd.conf file. Everything is fine
here.
Now, I want the same system to send v3 traps to various destinations with
different ip
I have an embedded system running a snmpd server. It has it's own engineID
generated from MAC address as instructed by snmpd.conf file. Everything is fine
here.
Now, I want the same system to send v3 traps to various destinations with
different ip adresses.
The question is: what engineID
What you're describing isn't supported by the software. A number of
things would need to be done besides just changing the engineID. You'd
also need to reset the boots and time values for USM.
Generally, engineIDs shouldn't ever change on a device without wiping
out the entire config
Hi,
nbsp;
I need to update the EngineID without restarting the snmpd process, but failed.
The following are my steps, who can tell me what's wrong with it?
-nbsp;updated the engineID in snmpd.conf
- triggled snmpd to load snmpd.conf again by using command kill -1 processID
nbsp;
Thanks,
Thomas
the special engineId?
Dear Sir/Madam,
I tried to set a special engine ID by adding a configure line into
snmpd.conf, just like below:
engineID 0x8064031edfaabbcc.
After starting up snmpd, I found that I got an unexpected result, just
like below,
80.00.1F
Dear Sir/Madam,
I tried to set a special engine ID by adding a configure line into snmpd.conf,
just like below: engineID 0x8064031edfaabbcc.After starting up snmpd, I
found that I got an unexpected result, just like below,
80.00.1F
Hello, all.
I need to change net-snmp agent's EngineID to another value. The problem
is,
there are few users already configured, and It will be very bad if those
will be lost.
Is there any way to migrate already generated user keys from one EngineID
to another? If it can't be done by means
On Thu, 27 May 2010 12:09:32 +0700, Mishustin Kirill
mishus...@eltex.nsk.ru said:
MK I need to change net-snmp agent's EngineID to another value. The
MK problem is, there are few users already configured, and It will be
MK very bad if those will be lost.
MK Is there any way to migrate already
On Fri, 30 Apr 2010 16:59:06 -0400, Ed Babin
edba...@21stcenturyexplorer.com said:
EB I'm a little confused with the enginedID in the snmptrapd.conf file. I was
EB able to generate my own engineID in the /var/net-snmp/snmpd.conf file via
EB engineID this is my engineID specifier
I'm a little confused with the enginedID in the snmptrapd.conf file. I was
able to generate my own engineID in the /var/net-snmp/snmpd.conf file via
engineID this is my engineID specifier. The snmptrapd.conf engineID does
not seem to work the same way. I have been able send and recieve V3 traps
We've been developing a network appliance with an SNMP agent and have had
troubles with time window errors. A solution suggested by this link...
http://www.mail-archive.com/net-snmp-users@lists.sourceforge.net/msg06691.html
... is to use a separate engineId for the trap sender. This is an easy
On 29 January 2010 06:22, sanjaykumar sanjay.ku...@globaledgesoft.com wrote:
Now as every time device reboot EngineID is Changing, Hence the engine
Time reset to zero[0] and Engine Boot to 1.
Does it correct that EngineID should also Change ?
Or it should change only in case of Power OFF
On 29 January 2010 11:26, sanjaykumar sanjay.ku...@globaledgesoft.com wrote:
As in case of net-snmp EngineId generated based on random number
and current time.
Hence every time system will reboot both the above DATA will change.
Right.
Hence EngineId will change ?
No.
The engine
Hi Dave,
As in case of net-snmp EngineId generated based on random
number and current time.
Hence every time system will reboot both the above DATA will change.
Hence EngineId will change ?
Am I right ?
/*
* Here we've desigend our own ENGINEID that is not based on
* an address which
Hi All,
I have a doubt regarding the EngineID.
As I have Ported the Net-SNMP-5.4.2.1 as a thread.
Now as every time device reboot EngineID is Changing, Hence the engine
Time reset to zero[0] and Engine Boot to 1.
Does it correct that EngineID should also Change ?
Or it should
snmpd.conf with these details. But I am unable to get the expected
results. The snmpd.conf contents are as below.
rwuser MYUSER noauth
syslocation 127.0.0.1
syscontact Root r...@localhost
master agentx
sysobjectid MY ENT OID
authtrapenable 1
AgentXTimeout 60
engineID 0xHex value created
).
Using IP addresses for engineIDs can be problematic if you ever change
the IP address of the machine (which is almost certainly likely to
happen with some devices on your network).
RV engineID 0xHex value created with ENT OID and IP + trailing zeros
That method (if you read the snmpd.conf
Thanks a lot Wes. It worked perfectly for me!!!
-Original Message-
From: Wes Hardaker [mailto:harda...@users.sourceforge.net]
Sent: Monday, February 16, 2009 9:48 PM
To: Ragesh V
Cc: net-snmp-users@lists.sourceforge.net
Subject: Re: Help needed on EngineID.
On Mon, 16 Feb 2009 15
. For SNMPv3 informs, the authoritative
engine is the engine *receiving* the inform, so the discovery operation will be
performed and the PDU will contain the engine ID of the target system, i.e.
snmpd, which is constant.
Is there any way to fix the engineId being used in the
snmptrap
snmpwalk but I still get random engine ids when I set it
in snmptrapd.conf.
Is there any way to fix the engineId being used in the snmptrap command
other than by specifying it on the command line with the -e option?
Thanks for your help.
Debbie
JM == Jeff Miller Miller writes:
JM - Changing the snmpd engineID will make the previous
JM localized engineID for a given security name incorrect
JM and render those users in the USM table unusable.
Dave is right, the engineID itself is not localized. localization
refers to how master
Dana Burns wrote:
So by using the system clock, does the engineID change at each boot?
Of course not. The system clock is used as one source during the
*initial* generation of the engineID. Once it has been generated, it's
persistent.
I can still authenticate if I use the -e option
I am using net-snmp to send v3 traps from the command line. I
understand that the manager must know the engine id of the trap sender
prior to receiving the trap.
Is there an accepted way of setting the engineID in this situation? The
random generation of engineID at startup will not work
JM == Jeff Miller Miller writes:
JM - Changing the snmpd engineID will make the previous
JM localized engineID for a given security name incorrect
JM and render those users in the USM table unusable.
Dave is right, the engineID itself is not localized. localization
refers to how master keys
Perhaps I am using things wrong but I seem to be having problems with my
USM users if I change the systems engineID.
If I use snmpusm to add users to the system and then stop snmpd I can
see that the users exist in the /var/net/snmpd.conf file and if I
restart snmpd I can still access the system
OK. One final scenario for clarification.
My understanding is that:
- Changing the snmpd engineID will make the previous
localized engineID for a given security name incorrect
and render those users in the USM table unusable.
- The engineID in the USM table is not accessible so
On 08/05/07, Miller, Jeff (eng) [EMAIL PROTECTED] wrote:
My understanding is that:
- Changing the snmpd engineID will make the previous
localized engineID for a given security name incorrect
and render those users in the USM table unusable.
Ummm... Not sure.
I'd need to check through
inform
to it anymore. After that, this message appears in the log
everytime a new inform need to be sent: snmpd: send_trap: USM unknown
security name (no such user exists)
After digging deeply into the code I've found that the agent only tries to discover the peer engineID once per 'session
on user authUser
trace: usm_get_user_from_list(): snmpusm.c, 3004:
usm: no match on engineID ()
trace: usm_rgenerate_out_msg(): snmpusm.c, 1403:
usm: Unknown User
trace: _sess_async_send(): snmp_api.c, 4816:
sess_async_send: encoding failure
snmpd: send_trap: USM unknown security name (no such user
, since I don't set the -e -Z flags in snmpd.conf.)
*** snmpd.log:
trace: usm_get_user(): snmpusm.c, 2982:
usm: getting user noAuthUser
trace: usm_get_user_from_list(): snmpusm.c, 2998:
usm: match on user noAuthUser
trace: usm_get_user_from_list(): snmpusm.c, 3004:
usm: no match on engineID ()
trace
traps in SNMPv3, the engine acts as an authoritative engine
Birgit and should therefor sends its own (!) authoritative engine ID,
Birgit engine boots and engine time, and not the synchronisation
Birgit parameters of the other party.
That's true, the agent should be sending it's own engineid, boots
Jeyachitra Ramshankar wrote:
I am using net-snmp manager to receive informs.
The engineId String value is being logged as some junk value
dumph_recv: msgAuthoritativeEngineID
dumpx_recv:04 0D 2E 2E 2E E5 2E 35 2E 2E 2E ED 2E 4E 43
dumpv_recv: String: ...å.5...í.NC
Hi,
I am using net-snmp manager to receive informs.
The engineId String value is being logged as some junk value
dumph_recv: msgAuthoritativeEngineID
dumpx_recv: 04 0D 2E 2E 2E E5 2E 35 2E 2E 2E ED 2E 4E 43
dumpv_recv: String: ...å.5...í.NC
But my custom agent(other than net-snmp) was not able
Thanks for the reply.
Whats the difference between contextEngineId and authoritativeEngineID?
JcOn 10/13/05, Thomas Anders [EMAIL PROTECTED] wrote:
Jeyachitra Ramshankar wrote: I am using net-snmp manager to receive informs. The engineId String value is being logged as some junk value dumph_recv
Hi,
For Sending Informs, I am using a snmpagent other than net-snmp.
But the manager is net-snmp.
While decoding the engineId that received in the discovery packet in
the agent side, it is null. But the size seems to valid length some +ve
integer.
To debug the same I want to know in net-snmp
Hi All,
I am a newbie.
I am using net-snmp manager to receive informs.
It is generating the engineId by its own.
I want to set the engineId to a specific value.
How to configure the same?
Also I want to print the generated engineId. Where , in which file should I edit to print the engineId.
Jc
Jeyachitra Ramshankar wrote:
I am using net-snmp manager to receive informs.
It is generating the engineId by its own.
I want to set the engineId to a specific value.
How to configure the same?
What version are you running? The snmpd.conf(5) manual page in
5.2.2.pre3 documents the following
-- Forwarded message --From: Jeyachitra Ramshankar [EMAIL PROTECTED]Date: Oct 6, 2005 6:19 PM
Subject: EngineId set by userTo: net-snmp-users@lists.sourceforge.netHi All,
I am a newbie.
I am using net-snmp manager to receive informs.
It is generating the engineId by its own.
I
Hi, I have a unusual case, where the agent and manager exchange engineID/engineTime/engineBoots before hand !!This is to avoid engineId discovery / time synch packets. These 2 packets are never exchanged in the lifetime.
I
am trying to use snmpget/snmpset/snmpwalk commands, I 'think
On Mon, 15 Aug 2005 12:36:12 -0600 [EMAIL PROTECTED] wrote:
CC I am trying to use snmpget/snmpset/snmpwalk commands, I 'think' these are
CC stateless applications, they do no persist any of the above (engine
CC id/time/boot details).
CC Every time these commands do engineID discovery and time
On Mon, 13 Jun 2005 12:15:06 -0700, Fong Tsui [EMAIL PROTECTED] said:
Fong Which configuration file should engineID be defined in? regular
Fong snmpd.conf or persist snmpd.conf?
Regular.
Fong I added engineID in regular snmpd.conf, restart snmpd, oldEnginerID
Fong seems changed.
Fong I
Which configuration file should engineID be defined in? regular
snmpd.conf or persist snmpd.conf?
I added engineID in regular snmpd.conf, restart snmpd, oldEnginerID
seems changed.
I also tried to add engineID in the persist configuration file
after stop agent first and start agent
I found some set options at the site whose link is
http://www.mkssoftware.com/docs/man5/snmpcmd.5.asp .
Which is basically a copy of
http://www.net-snmp.org/man/snmpcmd.html
Both of these are just online versions of the standard 'snmpcmd' man page.
But this link does not
Hi Dave,
I have found out the OID for engine ID as 1.3.6.1.6.3.10.2.1.1
in the SNMP FRAMEWORK MIB. But this object is defined as read only. So if I pass
this OID in the snmpset command, naturally it will throw me an error as "this
object is not writable". Also I found some set options at
Hi Dave,
I have a
requirement to provide cli command "snmp-server engineID" and
"Nosnmp-server engineID" for setting and removing engineID
configurations.Idon't know how to do this ?Please help
me.ThanksSanjay Madan
The thing is you shouldn't have those tokens [engineBoots and oldEngineID]
generally stored in a management app in the first place
That's certainly true for a Request Generator application, where the
engineID/Boots information will come from the agent being queried.
But doesn't a Notification
I don't create these tokens myself. I only write createUser(with
necessary parameters) in /var/ucd-snmp/snmptrapd.conf (for
ucd-snmp-0.4.2.5). After this once I start and then stop my application,
I see createUser replaced by three tokens:
usmUser
engineBoots
oldEngineID
And then after restarting
Hi All,
1) Can any body please tell me how can I get
and set EngineID, with string as an argument.
Regards!
Tina
I didn't get your point completely. Why should I call init_agent() from
my management application i.e. the code which will either receive traps
or make snmpget/set commands only. Also, I didn't find init_agent being
called from the code of tools snmptrapd.c and snmpget.c I saw the
following
Why should I call init_agent() from
my management application i.e. the code which will either receive
traps or make snmpget/set commands only.
Because init_agent is the bit that handles some of the
persistent configuration information. You don't need that
for a
I am sorry but still I didn't find
init_agent(snmptrapd) in snmptrapd.c of ucd-snmp-0.4.2.5 rather
init_snmp(snmptrapd) is there.
And I am also calling this function. Does this routine also do same as
init_agent?? or should I explicitly use init_agent instead od init_snmp
or BOTH?
Thanks
Soni
I am sorry but still I didn't find
init_agent(snmptrapd) in snmptrapd.c of ucd-snmp-0.4.2.5
OK.
Both Wes and I will have been looking at the v5 code.
The v4 line is rather old now, and is no longer being developed.
init_snmp(snmptrapd) is there.
And I am also calling this function. Does
Ya, I am also trying to find out the same i.e. why my app. doesn't pick
up these tokens automatically. May be - while mixing up the code of
snmpget and snmptrapd I have eaten up something(I did this 2 years back)
or I have called the initialization routines in different order or this
is happening
On Mon, 02 Aug 2004 14:26:22 +0200, Narinder Soni [EMAIL PROTECTED] said:
Narinder Ya, I am also trying to find out the same i.e. why my
Narinder app. doesn't pick up these tokens automatically. May be -
Narinder while mixing up the code of snmpget and snmptrapd I have
Narinder eaten up
the same request two or three times, in the
sure and certain expectation that the first one(s) will fail.
But the error reports that are returned from such failures will
include the missing information (engineID and boot time/count)
Try running
snmpget -d
or
snmpget -Ddump
Wes Hardaker wrote:
Net-SNMP uses a combination of time and random number values to seed
the engineID. Doing it any other way (like the common IP address way)
is generally bad practice.
Are you willing to elaborate on the latter statement? The SnmpEngineID
TC from RFC3411 defines and allows
Hi,
How and where does snmpget application discover the engine ID of agent's
machine?
Thanks
Soni
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that are returned from such failures will
include the missing information (engineID and boot time/count)
Try running
snmpget -d
or
snmpget -Ddump
to watch what goes on.
Dave
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