*) Most customers do have a excel-sheet or something like this with all
addresses they use . so just extract the ip's and put it into the seedfile.
*) You could try to set the "-J" option on netmon (look manpages)
*) use nmap to scan the subnets(should add arps entries to the router) and
do after each subnetscan a demandpoll on the segment router.
*) use nmap to identify all objects on the subnets - and grep thru the
fingerprints and add those to the seedfile.
i have done a lot of installation - and haven't had such a problem that no
l2 devices get disovered at all. Most of them are talking ip
(eg. sending traps/syslog) and therefore also generating arps on routers -
they are discoverd automatically.
Regards,
Dietmar
*************************************************************
Dietmar Gaulhofer, IBM Österreich
Systems Engineer
ITS - Integrated Technology Services - Unit Austria
Email: Dietmar_Gaulhofer@at.ibm.com
**************************************************************
Swen.Jedlicka@finanzit.com@lists.us.ibm.com on 05.01.2004 11:54:59
Please respond to nv-l@lists.us.ibm.com
Sent by: owner-nv-l@lists.us.ibm.com
To: nv-l@lists.us.ibm.com
cc:
Subject: Antwort: Re: [nv-l] Discovery question
Thanks Bernard,
but, we have about 13.000 subnets,
Each subnet consists of one or more layer 2 devices. It would take a long
time
to manually create the neccessary seedfile.
Are there any other things i can do ?
Regards
Swen
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Swen,
NetView on Unix doesn't do a broadcast ping. NetView on Windows can,
IIRC.
You have help/force discovery by pinging nodes manually, using a
seedfile or using the loadhosts command.
HTH,
Bernard
>>> Swen.Jedlicka@finanzit.com 05-01-2004 10:21:53 >>>
Hi all,
first " a happy new year" to everybody.
I have a question about discovery of layer 2 devices :
In my opinion netview discovers a subnet , while reading
the routing table of a layer 3 device. The devices in this subnet
become discoverd only, when they appear in the arp table of
the layer 3 device.
How discovers netview a layer 2 device in this subnet, which do not
appear in the arp table. Does netview do a braodcast ping?
Thanks
Swen
Mit freundlichen Grüßen
Kind regards
Swen Jedlicka
FinanzIT GmbH
Netzdesign
Semmelweisstr.9
04103 Leipzig
Office: +49 341 993 - 6807
Mobil: +49 175 585 - 6807
Fax: +49 341 993 - 6850
Notes: swen.jedlicka@nbg
e-Mail: swen.jedlicka@FinanzIT.com
Internet: www.FinanzIT.com
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