How to discover network devices?

We have a SCOM2012R2 management group with 6+ management servers. If I want to configure discovery of network devices,
1. can I use "All management servers" pool to discover them? or
2. Can I specify/reserve two of them just to do the discover and manage those network devices (a handful devices), and how?
3. If I create a resource pool contains only those two MSs, do I need to remove them from "All management servers" pool?

Yes, you can create one discovery rule per management server or gateway server.
http://blogs.technet.com/b/ptsblog/archive/2011/11/28/network-monitoring-with-system-center-operations-manager-2012.aspx
Operations Manager supports monitoring of the following number of network devices:
2000 network devices (approximately 25,000 monitored ports) managed by two resource pools
1000 network devices (approximately 12,500 monitored ports) managed by a resource pool that has three or more management servers
500 network devices (approximately 6,250 monitored ports) managed by a resource pool that has two or more gateway servers
Also you can refer below link
http://technet.microsoft.com/en-us/library/hh212935.aspx
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How to remove network devices through powershell? (scom 2012)

Hi
Could anyone says how to delete network device in SCOM 2012 through powershell?
In 2007 we have Get-RemotelyManagedDevice.
I have a big number network device in monitoring and now need delete some of them with specific filter, all switches.
How to do it?
Thanks
Alex

The devices were discovered by an old Management Server that was reinstalled.
I finally got those devices out of my SCOM environment using this SQL query (just replace networkdevicename):
UPDATE
BaseManagedEntity
SET
isdeleted=1
from
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BaseManagedEntityId in
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Discovering Network devices on 2 different subnets

Hello
I am trying to discover the network devices available in 2 different subnets (10.0.0.0) and (172.0.0.0), I installed 2 interface cards on the operations manager management server, each interface should reach the network devices in their address range,
I tested reaching various network devices in the 2 subnets "using the application MIB browser" and everything is ok.
now I added the devices IP addresses to the network discovery rule, 90% of the devices are discovered but some devices are not shown in the discovered devices nor the pending management pages! while they are added to the rule.
I logged onto the failed device which its interface is connected to the subnet 172.0.0.0 and checked the snmp logs and found that the operations manager management server is failing to access the device using SNMP using the subnet 10.0.0.0.
so I think now that operations manager uses the primary interface card 10.0.0.0 to access the remote device using snmp, so how do I enforce SCOM to discover the 172.0.0.0 devices using the 172.0.0.0 interface card.
Thank you
Mohammad, IT NOC Team

Hi Yan,
no many of the devices in the subnet 172.0.0.0 are discovered but some of them are not, those which are not discovered and are not appearing under the pending management. also when accessing those devices and checking the snmp logs I see failed attempts
to read snmp from the SCOM IP address which is on the subnet 10.0.0.0 isn't strange that SCOM uses the IP 10.0.0.0 to access a device on the subnet 172.0.0.0
Thanks
Mohammad, IT NOC Team

How to import network devices on ISE 1.2

Hi, experts,
I'm trying to import network devices on ISE 1.2.0.899
so I downloaded the template and opened with notepad and wrote all the nessesarry information.
and I tried to upload to ISE, and it just said import failed. no reason..
does anyone know how to do it ?

Hi jiyoung
This import failed error might occur due to following reasons so please make sure that :
You are not running two import jobs of the same resource type at the same time. For example, you cannot concurrently run two import jobs to import network devices from two different import files.
More over please make sure that while configuring the network devices you are performing job from a super admin or network device admin group.
Best Regards:
Muhammad Munir
Hi, experts,
I'm trying to import network devices on ISE 1.2.0.899
so I downloaded the template and opened with notepad and wrote all the nessesarry information.
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Discovering Network Devices with SNMP not working

I have implemented SCOM 2012 SP1 CU5 on Server 2008 R2 with SQL 2008 R2 all installed on the same VM running side by side with SCOM 2007 R2 v 6.1.7221.0. I have almost fully decommissioned SCOM 2007 and all that remains on it is 2 network devices that
I cannot discover with SCOM 2012 using SNMP, no matter what I try. If I just use ICMP the discovery works. I have checked both the devices and SNMP is enabled and if I run this snmpwalk command on both devices I get a response;
c:\Support\SNMP Walk>SnmpWalk.exe -r:10.X.X.XX -v:1 -c:"public" -os:.1.3.6.1.
2.1.1 -op:.1.3.6.1.2.1.2
SnmpWalk v1.01 - Copyright (C) 2009 SnmpSoft Company
[ More useful network tools on http://www.snmpsoft.com ]
OID=.1.3.6.1.2.1.1.1.0, Type=OctetString, Value=NetMan 100 plus
OID=.1.3.6.1.2.1.1.2.0, Type=OID, Value=1.3.6.1.4.1.5491.6
OID=.1.3.6.1.2.1.1.3.0, Type=TimeTicks, Value=5 days, 1:58:58.04
OID=.1.3.6.1.2.1.1.4.0, Type=OctetString, Value=SystemsEngineer
OID=.1.3.6.1.2.1.1.5.0, Type=OctetString, Value=MARMUPS
OID=.1.3.6.1.2.1.1.6.0, Type=OctetString, Value=FXXXXX
OID=.1.3.6.1.2.1.1.7.0, Type=Integer, Value=0
Total: 7
c:\Support\SNMP Walk>SnmpWalk.exe -r:10.X.X.1 -v:1 -c:"scom05" -os:.1.3.6.1.2.1
.1 -op:.1.3.6.1.2.1.2
SnmpWalk v1.01 - Copyright (C) 2009 SnmpSoft Company
[ More useful network tools on http://www.snmpsoft.com ]
OID=.1.3.6.1.2.1.1.1.0, Type=OctetString, Value=SSG-140 version 6.3.0r2.0 (SN: 0
185112006000325, Firewall+VPN)
OID=.1.3.6.1.2.1.1.2.0, Type=OID, Value=1.3.6.1.4.1.3224.1.52
OID=.1.3.6.1.2.1.1.3.0, Type=TimeTicks, Value=359 days, 2:20:16.00
OID=.1.3.6.1.2.1.1.4.0, Type=OctetString, Value=Network
OID=.1.3.6.1.2.1.1.5.0, Type=OctetString, Value=XXXXXX
OID=.1.3.6.1.2.1.1.6.0, Type=OctetString, Value=FXXXXX
OID=.1.3.6.1.2.1.1.7.0, Type=Integer, Value=72
Total: 7
The first device is a Marms UPS which has had its firmware upgraded, which was discovered using SNMP in SCOM 2007 and the second device is a Juniper SSG-140 Firewall, again this is discovered using SNMP in SCOM 2007.
I believe that I have setup SNMP correctly on SCOM 2012 because I have 28 other networks devices discovered using SNMP using an explicit discovery, some of these being newer Marms UPS's, emerson air conditioners, netapp SAN etc.
I have added any and all accepted community names in the SNMP service properties on SCOM 2012 and enabled accept SNMP packets from any host.
Does anyone have any information that they could forward to me or point in the right direction to troubleshoot this issue for eg run some snmp get commands and capture / filter traffic with wireshark, what do I look for? Any other logs to check besides the
obvious ones? Any known issues with SCOM 2012 SP1 and SNMP, should I upgrade to R2? It just seems that some network devices get discovered with ease and others do not and I am running out of ideas. Thank you all in advance.

Patrick, thank you for your reply.
Yes the snmpwalk command is run from the new SCOM 2012 server which has the discovery rule on it.
I don't have any pending network devices, its blank.
Could there be an issue with my discovery rule? I have noticed that each time I make a change to, for eg, the access mode and change this from ICMP to ICMP/SNMP, save it, run it, it doesn't seem to update the said network devices access mode's in network
devices, it just stays on ICMP. Do I have to manually remove the network devices which have been discovered before making any changes to the discovery rule and running it which I have done? They don't seem to appear in network devices pending management either?

Discover network devices

Hello all,
I'm trying to understand the 'network discovery' method and wanted to know what kind of devices it can discover using this method?
thanks

It will and can discover just about anything attached to the network but most of those devices can;t be managed in any way and or very limited information is collected so doing this typically isn't done at all as it simply clutters ConfigMgr.
Jason | http://blog.configmgrftw.com

How to discover network speed?

I'm a happy user of a mixed Mac (MacBook Pro) and PC (XP Pro SP3) home wireless network - unusual I know! My question is whether there is a way to get my MacBook to tell me what speed it is connecting to my Time Capsule-based wireless network?
The reason I ask is that my Windows laptop (Sony VAIO with a elderly "b" standard wifi card) tells me that it is only connecting at 1Mbps (occaisionally 2Mbps) - it used to tell me that it connected to my previous D-link router at 11Mbps. I appreciate that it might be lying to me in one or both cases but I would like to know whether I am getting as much out of the TC as I could. I determine the alleged speed of the network by hovering the mouse over the wifi indicater in the systems tray. It maintains this story regardless of whether any other computers are logged on to the network. I don't know how to do the equivalent in Leopard (I am a recent convert to Macs!)
I tried speedtest.net but it only told me that I have a miserly 3.9Mbps broadband connection (ie about the UK average) but at least it says the same regardless of whether I do the test on the Mac or the Sony. Shame I am paying for 8Mbps...
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{quote}My question is whether there is a way to get my MacBook to tell me what speed it is connecting to my Time Capsule-based wireless network?
{quote}
The Network Utility will give you the link speed. It is located in the Applications/Utilities folder.

Network devices discovered but not managed

SCOM 2012 R2 management group. A dedicated network monitoring resource pool consists of two MSs. These two MSs have been removed from AMSRP and other two default resource pools (AD.., Notification...) - is this correct?
Two discovery roles:
role1 runs on GWS1 discovered (explicitly) 5 devices and shown all "healthy". This rule was using AMSRP to monitor, but changed to the dedicated pool after it was created.
role2 (added after the dedicated resource pool was created) runs on GWS2 discovered (explicitly) 2 devices but shown as "not monitored"
How to find out what's wrong? (log files etc?)
Anything need to check with the resource pool settings?
Thanks.

Hi,
Do you mean that you have discovered the two network devices on your Management server, but it is not monitored.
This issue maybe caused by the proper management pack was imported, please go through the below article to get more information about how to monitor network device by using SCOM:
http://technet.microsoft.com/en-us/library/hh212935.aspx
Network Monitoring using System Center Operations Manager 2012
http://blogs.technet.com/b/rohitkochher/archive/2011/11/26/network-monitoring-using-system-center-operations-manager-2012.aspx
Regards,
Yan Li
Regards, Yan Li

SCOM Network Device Alerts

Hi,
In our environment we are using SCOM 2012 to monitor Servers and network Devices.we discovered network devices but the display name of the device is looking like 134.sub-91-245-149.ymzvw.com and the same is displayed in alerts so it is very difficult
to trace out the name and location of the device.But and in the property of the device it shows location and primary owner name of the device it will be helpful if i change the display name to its location name.
Is there any way to change the display name of the device to its location name.
Is there any way to modify the alerts so that it will be easy to figure out the location and name of the device.
Thanks in advance
Thanks Siva Aadhi-CIT. MCITP

I have resolved part of my issue. Display name and full path name
     is now same as MIB2 System Name. Apparently Display name and
     Full path name is pulled from DNS. So i was about to resolve part of
     my issue with just deleting the device from SCOM. creating DNS A record
     and re-discovering the device. but still when it comes to alert.. it shows
     MAC address as part of Path instead of display name or MIB2 Displayname.
http://social.technet.microsoft.com/Forums/systemcenter/en-US/fab18884-3a08-4684-99da-c6a9b801054f/scom-2012-network-monitoring-alerts>
Have a nice day !!!

How / When Does a Device Jump from the 2.4 GHz Network to the 5.0 GHz Network

I understand -- through another thread that I started -- that the Guest Network will be both 2.4 GHz as well as 5.0 GHz....I would like to understand how / when does a device jump from the 2.4 GHz network to the 5.0 GHz network as I understand that: the 2.4 GHz network is slower but has greater range relative to the 5.0 GHz network.
Thx...

Bob Timmons wrote:
A device will connect to either the 5 GHz or 2.4 GHz band based on its own capabilities and distance in relation to the router.
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Think of 5 GHz as a "same room" connection or "line-of-sight" deal. It might be OK through one wall....if it is thin.
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Again, thanks for the very helpful response.
It occurs to me from reading the above that it makes sense to let the device (using your words) connect to either the 5 GHz or 2.4 GHz band based on its capabilities and distance in relation to the router as I can see / understand the downside and issue of manually pointing to or selecting a specific network.
The reason that I purchased an Apple router is the hope that it will work better than some of the other routers I have tried as far as the 5 GHz / 2.4 GHz dual banding is concerned because in most of these cases I have had to disable the 5 GHz band to maintain a reliable internet connection...hopefully the Aiport Extreme will not require me to do so [i.e. it will work]!
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Thx...

How to block mobile devices connected to internal Wi-Fi networks on Lync 2013

How to block mobile devices connected to internal Wi-Fi networks on Lync 2013.
we don't have lyncdiscoverinternal.contoso.com and lyncdiscover.contoso.com in internal DNS record, all mobile users are connecting from Internet, and we want it to be that way.
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Praveen | MCSE Messaging 2003

Hi Praveen,
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Please have a look at the following picture.
In Lync Server 2013,
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From the above picture, if you use a reverse proxy that is
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Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]

Same network device gets discovered multiple times in scom

Hi All,
In SCOM 2012 , Same network device gets discovered multiple times.
For example, if we have an ip address 10.91.180.43 added to Network discovery rule.
When Discovery is run few times.
its gets discovered multiple times and shows 3 or 4 times under Network Devices.
Please help me to fix this issue.
Thank you
Siva

Hi dktoa,
Thank you for the quick reply. i would like to explain my issue in clear.
For example, if we have an ip address 10.91.180.43 added to Network discovery rule.
When Discovery is run few times. its gets discovered multiple times and shows 3 or 4 times under Network Devices. And it gets listed multiple times with same ipaddress not with different ip.
it will look like this
10.91.180.43
10.91.180.43
10.91.180.43
---- I read both articles, they are were interesting.
Do you mean to say that my issue will get fixed , if i change the AccessAddressFormat = "AUTOADDRESS" as
AccessAddressFormat = "LOOPBACKADDRESS"
Please guide me if i am wrong.
Thank you once again.
Regards
Siva

How to stop ACS intergated AD users to login in AAA clients(network device)

I have ACS 4.2 Appliance which is integrated with Active directory.
AD users are able to login in network devices. Is there any so that I can stop AD user and other local users to login in AAA clinets (network devices).

These types of configurations are a two-way street. ACS must be configured to actually perform the authentication/authorization, and the AAA clients must also be configured for authentication/authorization. I would look at the AAA client configurations, first.
What kind of AAA clients are we talking about? Cisco switches, Cisco WLC's? Swicthing gear from other companies?
For Cisco switches, lines like the following will tell them to use your ACS server for administrative user auth (RADIUS ro TACACS+, respectively):
aaa group server radius rad_admin
server xxx.xxx.xxx.xxx
aaa group server tacacs+ tac_admin
server xxx.xxx.xxx.xxx
If your AAA client is a WLC, then you need to uncheck the "Management" box where the RADIUS server is defined for authentication (Security -> AAA -> RADIUS -> Auth).

More than 4 network Devices - how do i connect?

Hi,
I have a new Home Hub 4 and i am currently using all the outlets from my network devices. I now need another connection in my lounge for my blue ray player, but i obviously do not have anymore network connections available?
I have an old home hub 3, could i swap the connection to the spare LAN2 at my modem and put the hub 3 on the other end and then have 4 connections available instead of the original 1?
I am a novice as this and would appreciate any help to solve my current problem - diagrams would be very useful.
Regards
Rob
Solved!
Go to Solution.

>Disable the wifi card on your computer/laptop as you dont want to change settings on master hub by accident.
>Power on old hub but do not connect to phone line just plug it into the wall and connect an ethernet cable from this to your computer.
>Navigate to 192.168.1.254 on your browser this will bring up your hub configuration page.
> Goto Advanced - Firewall - Configuration - Disable.
> HUB 4 AND 5 ONLY: Goto Advanced - Home network - Smart Setup - Disable.
> Goto Advanced - Home Network - IP addresses - In the IP address box type 192.168.1.10 and then click on DHCP server disable - apply. (Do both steps then hit apply or you will loose connection and it will be difficult to get back)
> Now plug the old Hub into the main hub via ethernet or powerline network plugs and voila you have an access point.
At this point you will have 2 seperate wireless networks broadcasting 2 names (ssid) and using 2 different wireless keys, which itself is not a problem just point your devices at the one you want to connect to and it will work, however now would be a good time to set yourself a nice custom SSID and wireless key that you can remember easily and to do this follow instructions below.
To set master Hub goto 192.168.1.254 in your browser
To set slave Hub goto 192.168.1.10 in your browser.
Instructions are the same for both.
Goto advanced - wireless - and now set SSID - Wireless key to a custom choice, if you are using the same SSID and Key for both hubs make sure you set the same security type or devices may not be able to connect to one or the other.
Below applies to secondary hubs only and your main hub will have the same status lights as normal.
On Hubs V2 and V3 you will be left with just the wireless and power lights illuminated the broadband light will be off.
Hub V4 your status light will be orange and your broadband light will flash constantly this is normal.
Hub V5 your status light will be orange and broadband light will flash constantly, however occaisionally the status light will flash as if its trying to connect, again this is normal and does not effect operation.

How to Ping a network device from RT controller

Is there any ways other than TCP/IP or FTP to ping and check whether a particular network device is present or not in the network by using RT controller ??
Thanks,
Nanda

BlueCheese wrote:
The "Find Targets" VIs will only find NI RT controllers. If you want to do an ICMP ping to a non-NI device it will not do what you want.
A while back I wrote up this VI to do an ICMP ping on Windows, PharLap, and VxWorks controllers that should still work. On VxWorks devices there was a bug in the WindRiver implmentation that would incorrectly add a delay to the round-trip time---I do not know if this has been fixed.
Eric
I tried it on both my PC and a PXI-RT using LV2010 and it work perfectly!
The problem is I tried "translating" it to LabVIEW 7.1 and LV closses inmediately
Would you have an older version of the VI for PharLap?
Attachments:
ping_PharLap_LV711.vi ‏218 KB

How to discover network devices?

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