Re: Network device discover ?
2013-05-22 15:48:55 GMT
David et al:
You can never have enough tools especially enough tools to find things on your network.
There are many great things about Netsight for managing Enterasys and non-Enterasys networks. Compass is a wonderful tool. Let me suggest there are several things that will increase the success of using this tool.
See the attached JPG file (has the word “Options” in the file name). This shows the open “Options” button. These are all the things you can search on in a Compass search. Note that in my standard search on our network, we generally only look for three different SNMP mibs when doing a search. There are many things you can search for and you can change this list of options to improve you search results. We do this all the time. Note also the left column. When you add a device to Netsight there are many things that get recorded about that device. When you set up a switch or wap you should be setting up something in the location field. That is because Netsight will automatically record this information and it will show up in searches when you “go to” a device. You can also search on fewer devices to make searches go faster. There are all sorts of things that can be done with searches. This search goes out and checks all the switches that are in Netsight. Even if I used only the three SNMP mibs you see in this picture, to check all 4000+ devices in my Netsight takes about three minutes. This is not bad if you try comparing that to one person stepping through arp tables. We have used this for years with much success.
However, there is an even better way to do this and use even more data that is in Netsight. We call it the Networking Information Tool – NIT.
The wealth of information that is in Netsight especially as you have more components of it install is very, very large. At UNC we have a large NAC deployment. With a number of tools we have from Enterasys, we have written several web pages that are key services that save our users huge amounts of time and have reduced drastically reduced the number of tickets we get to the networking group. See the JPG file with the name “NIT” in it. This is a lookup that can be done with a mac address or an IP address (about 90% success rate) that is seconds can give back much information about an existing device on the network: If you put in IP address it gives you mac address or vice versa. It also gives you ping status, registered IP hostname, switch ip, switch port, port description, switch type, switch location, date & time last seen on the network, default vlan, NAC policy of the device, Security Domain, Security Profile and Security Group Membership. This lookup takes seconds…yes seconds. It is looking at many things in Netsight as well as a few sources outside of Netsight. One of the reasons it is so fast is that it is using the current data in Netsight NAC. We give access to over 400 support staff in our central group and in departments throughout campus. Many tickets do not have to come to us because campus support staff have this tool to find things in our large network. When we do get tickets now, much of the time this “NIT” information is already in the ticket and we have one less step to do to work on a problem. Programming this is not trivial but it is doable with several tool sets and data points you can get from Enterasys.
Let us know if you have questions.
Mike Hawkins
Associate Director of Networking
UNC-Chapel Hill
From: Maheu, Robert [mailto:maheu <at> enterasys.com]
Sent: Wednesday, May 22, 2013 10:52 AM
To: Enterasys Customer Mailing List
Subject: Re: [enterasys] Network device discover ?
Hi David,
You can try using Compass from within NetSight Console. This will 'scan' the devices that you currently have modeled to try and determine what is living on a port.
1. Select the All Devices folder.
2. Change to the Compass tab.
3. Leave the Search Type as Auto.
4. Enter the MAC if you know that into the Search Parameters Address field.
Make sure that the Results Filter is set for layer 2/3/4 and CDP/Backplane/Host Data Ports as this will display the most results.
If you only want to look on a specific device then you can drill down and select only that device in the Device Tree and perform the same operation.
NOTE that if you leave the Search Parameters Address field blank it will pull back all the information that the switch knows about.
Robert Maheu | GTAC
Enterasys Networks | A Siemens Enterprise Communications Company
Office: 603-952-5630
Email: maheu <at> enterasys.com
There is nothing more important than our customers.
On Wed, May 22, 2013 at 10:10 AM, David J. Rodrigues <djrodrigues <at> ana.pt> wrote:
Thank you all!
My problem is to find equipment which IP address is unknown, especially devices without IP (that’s why I’m asking something like MAC scanner).
By the SNMP method i think i should have IP configured on all devices, right?
Regards
David Jorge E. Rodrigues
From: Arturo Aguilar [mailto:arturo.aguilar <at> netcontroll.com]
Sent: quarta-feira, 22 de Maio de 2013 13:16
To: Enterasys Customer Mailing List
Cc: Enterasys Customer Mailing List
Subject: Re: [enterasys] Network device discover ?
Hi David, you can find unconfigured Enterasys devices with the public snmp community. And not only Enterasys devices.
For configured you need to put the correct SNMP settings to discover.
Regards.
Sent from my iPhone
On 22/05/2013, at 04:55, Michael Votaw - ASI <michael <at> arcadiasecureit.com> wrote:You can "discover" that a switch or network device exists by reading several tables on other switches or routers like...
Spanning tree
LACP
CDP
Node/Alias table (assuming it's Enterasys)
But, you won't be able to manage the network device unless it has an IP address with the correct SNMP settings.
From: David J. Rodrigues [djrodrigues <at> ana.pt]
Sent: Wednesday, May 22, 2013 11:29 AM
To: Enterasys Customer Mailing List
Subject: [enterasys] Network device discover ?Goog day all!
Is Netsight able (or any other tool) to discover unconfigured / configured Enterasys switchs on a network (like MAC search, …) ?
Thanks in advance
David Jorge E. Rodrigues
---------------------------------------------------------------------------------------------------------------------------------------------------------
E-MAIL DISCLAIMER
This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system.
E-mails are not encrypted and cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard-copy version.
This e-mail and any files and attachments transmitted with it are confidential and may be legally privileged. They are intended solely for the use of the intended recipient. Any views and opinions expressed are those of the individual author/sender and are not necessarily shared or endorsed by ANA Aeroportos de Portugal S.A. or any associated or related company. In particular e-mail transmissions are not binding for the purposes of forming a contract and do not form a contractual obligation of any type. Such contracts can only be formed in writing by post or fax, duly signed by a senior company executive or members of the Board of Directors.
The content of this e-mail or any file or attachment transmitted with it may have been changed or altered without the consent of the author. If you are not the intended recipient of this e-mail, you are hereby notified that any review, dissemination, disclosure, alteration, printing, circulation or transmission of, or any action taken or omitted in reliance on this e-mail or any file or attachment transmitted with it is prohibited and may be unlawful.
If you have received this e-mail in error please notify ANA Aeroportos de Portugal S.A. or any of its associated companies.
Visit our website at http://www.ana.pt
ANA - Aeroportos de Portugal, SA
Sede _ Rua D, Edificio 120, Aeroporto de Lisboa _ 1700-008 Lisboa
NIF e Matricula na Conservatoria do Registo Comercial de Lisboa (1a): 500700834 _ Capital Social 200 000 000 Euros
- --To unsubscribe from enterasys, send email to listserv <at> unc.edu with the body: unsubscribe enterasys michael <at> arcadiasecureit.com
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2013.0.3343 / Virus Database: 3162/6342 - Release Date: 05/20/13
- --To unsubscribe from enterasys, send email to listserv <at> unc.edu with the body: unsubscribe enterasys arturo.aguilar <at> netcontroll.com
- --To unsubscribe from enterasys, send email to listserv <at> unc.edu with the body: unsubscribe enterasys djrodrigues <at> ana.pt
---------------------------------------------------------------------------------------------------------------------------------------------------------
E-MAIL DISCLAIMER
This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system.
E-mails are not encrypted and cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard-copy version.
This e-mail and any files and attachments transmitted with it are confidential and may be legally privileged. They are intended solely for the use of the intended recipient. Any views and opinions expressed are those of the individual author/sender and are not necessarily shared or endorsed by ANA Aeroportos de Portugal S.A. or any associated or related company. In particular e-mail transmissions are not binding for the purposes of forming a contract and do not form a contractual obligation of any type. Such contracts can only be formed in writing by post or fax, duly signed by a senior company executive or members of the Board of Directors.
The content of this e-mail or any file or attachment transmitted with it may have been changed or altered without the consent of the author. If you are not the intended recipient of this e-mail, you are hereby notified that any review, dissemination, disclosure, alteration, printing, circulation or transmission of, or any action taken or omitted in reliance on this e-mail or any file or attachment transmitted with it is prohibited and may be unlawful.
If you have received this e-mail in error please notify ANA Aeroportos de Portugal S.A. or any of its associated companies.
Visit our website at http://www.ana.pt
ANA - Aeroportos de Portugal, SA
Sede _ Rua D, Edificio 120, Aeroporto de Lisboa _ 1700-008 Lisboa
NIF e Matricula na Conservatoria do Registo Comercial de Lisboa (1a): 500700834 _ Capital Social 200 000 000 Euros
- --To unsubscribe from enterasys, send email to listserv <at> unc.edu with the body: unsubscribe enterasys maheu <at> enterasys.com
- --To unsubscribe from enterasys, send email to listserv <at> unc.edu with the body: unsubscribe enterasys hawkins <at> email.unc.edu
- --To unsubscribe from enterasys, send email to listserv <at> unc.edu with the body: unsubscribe enterasys nick.allen <at> tbwa.com
- --To unsubscribe from enterasys, send email to listserv <at> unc.edu with the body: unsubscribe enterasys gneu-enterasys <at> gmane.org
RSS Feed