[OT] Network Question: How to find device for an IP address

system · February 18, 2008, 7:25am

Todd Caughey wrote:

> Another other tricks for figuring out what it might be? Even just what type of device (printer, PC, switch, etc..) would help a lot. For the future I think I will see if I can manually make DNS entries and add descriptions for the odd devices....when I can find them.

You need nmap
http://insecure.org/

You can do a scan like:
nmap -O 192.168.0.0/24

And it will tell you everything on your network, what O/S it's running, what ports are open, and (usually) how long it's been booted.

EG:

# nmap hp4100
Starting Nmap 4.20 ( http://insecure.org ) at 2008-02-15 17:07 EST
Interesting ports on hp4100.xxiii.com (172.23.23.21):
Not shown: 1690 closed ports
PORT STATE SERVICE
21/tcp open ftp
80/tcp open http
280/tcp open http-mgmt
443/tcp open https
515/tcp open printer
631/tcp open ipp
9100/tcp open jetdirect
MAC Address: 00:11:0A:C3:43:99 (Hewlett Packard)

-Wayne

system · February 15, 2008, 9:59am

Maybe one of you network experts can help me with an odd issue. Our network (for now) is all static IP. A couple days ago we installed a new phone system and the techs used a couple addresses in our subnet range without asking me. One for the system console and one for voicemail. On beknowngst to them one was in use by another device and we are getting odd symptoms on the phome system.

I have a bunch of Win-98 PCs that do not show up in the DNS reverse lookup table as well as some printers and net switches that also do not. I can't find address IP x.x.x.15 anywhere after running all over and IPCONFIGing all the older PCs and such. I can PING something with that address even with the phone system disconnected from the network so I know it is out there. TRACERT is no help because whatever it is does not identify with a name.

Another other tricks for figuring out what it might be? Even just what type of device (printer, PC, switch, etc..) would help a lot. For the future I think I will see if I can manually make DNS entries and add descriptions for the odd devices....when I can find them.

Thanks,
Todd Caughey
Harvey Vogel Mfg. Co.

[Non-text portions of this message have been removed]

system · February 15, 2008, 10:10am

Maybe this would help.
http://www.lookatlan.com/

Bob

----- Original Message -----
From: "Todd Caughey" <caugheyt@...>
To: <vantage@yahoogroups.com>
Sent: Friday, February 15, 2008 9:59 AM
Subject: [Vantage] [OT] Network Question: How to find device for an IP
address

Maybe one of you network experts can help me with an odd issue. Our network
(for now) is all static IP. A couple days ago we installed a new phone
system and the techs used a couple addresses in our subnet range without
asking me. One for the system console and one for voicemail. On beknowngst
to them one was in use by another device and we are getting odd symptoms on
the phome system.

I have a bunch of Win-98 PCs that do not show up in the DNS reverse lookup
table as well as some printers and net switches that also do not. I can't
find address IP x.x.x.15 anywhere after running all over and IPCONFIGing all
the older PCs and such. I can PING something with that address even with
the phone system disconnected from the network so I know it is out there.
TRACERT is no help because whatever it is does not identify with a name.

Another other tricks for figuring out what it might be? Even just what type
of device (printer, PC, switch, etc..) would help a lot. For the future I
think I will see if I can manually make DNS entries and add descriptions for
the odd devices....when I can find them.

Thanks,
Todd Caughey
Harvey Vogel Mfg. Co.

[Non-text portions of this message have been removed]

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http://groups.yahoo.com/group/vantage/messages
(3) To view links to Vendors that provide Vantage services goto:
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Yahoo! Groups Links

system · February 15, 2008, 10:13am

Todd,
I sometimes use "Angry IP Scanner" free is what I have right now. I will
associate a hostname to IP where it can. I does not show any information
for some things, but it might work for your stranded device. It works
particularly good with Printers for me.
Best of luck,
Aaron Hoyt
Vantage Plastics
-----Original Message-----
From: vantage@yahoogroups.com [mailto:vantage@yahoogroups.com]On Behalf Of
Todd Caughey
Sent: Friday, February 15, 2008 9:59 AM
To: vantage@yahoogroups.com
Subject: [Vantage] [OT] Network Question: How to find device for an IP
address

Maybe one of you network experts can help me with an odd issue. Our
network (for now) is all static IP. A couple days ago we installed a new
phone system and the techs used a couple addresses in our subnet range
without asking me. One for the system console and one for voicemail. On
beknowngst to them one was in use by another device and we are getting odd
symptoms on the phome system.

I have a bunch of Win-98 PCs that do not show up in the DNS reverse lookup
table as well as some printers and net switches that also do not. I can't
find address IP x.x.x.15 anywhere after running all over and IPCONFIGing all
the older PCs and such. I can PING something with that address even with the
phone system disconnected from the network so I know it is out there.
TRACERT is no help because whatever it is does not identify with a name.

Another other tricks for figuring out what it might be? Even just what
type of device (printer, PC, switch, etc..) would help a lot. For the future
I think I will see if I can manually make DNS entries and add descriptions
for the odd devices....when I can find them.

Thanks,
Todd Caughey
Harvey Vogel Mfg. Co.

[Non-text portions of this message have been removed]

[Non-text portions of this message have been removed]

system · February 15, 2008, 10:20am

Todd,

You may find this usefull...

http://www.lookatlan.com/

... it's helped me out a few times in a similar situation :)

--- In vantage@yahoogroups.com, Todd Caughey <caugheyt@...> wrote:
>
> Maybe one of you network experts can help me with an odd issue.
Our network (for now) is all static IP. A couple days ago we
installed a new phone system and the techs used a couple addresses in
our subnet range without asking me. One for the system console and
one for voicemail. On beknowngst to them one was in use by another
device and we are getting odd symptoms on the phome system.
>
> I have a bunch of Win-98 PCs that do not show up in the DNS
reverse lookup table as well as some printers and net switches that
also do not. I can't find address IP x.x.x.15 anywhere after running
all over and IPCONFIGing all the older PCs and such. I can PING
something with that address even with the phone system disconnected
from the network so I know it is out there. TRACERT is no help
because whatever it is does not identify with a name.
>
> Another other tricks for figuring out what it might be? Even just
what type of device (printer, PC, switch, etc..) would help a lot.
For the future I think I will see if I can manually make DNS entries
and add descriptions for the odd devices....when I can find them.
>
> Thanks,
> Todd Caughey
> Harvey Vogel Mfg. Co.
>
>
> [Non-text portions of this message have been removed]
>

system · February 15, 2008, 10:51am

My first thought would be to start unplugging switches and see when the
pinging goes away. Once you have it isolated to a switch, then start
unplugging cables until you find the physical connection.

Butch

________________________________

From: vantage@yahoogroups.com [mailto:vantage@yahoogroups.com] On Behalf
Of Todd Caughey
Sent: Friday, February 15, 2008 6:59 AM
To: vantage@yahoogroups.com
Subject: [Vantage] [OT] Network Question: How to find device for an IP
address

Maybe one of you network experts can help me with an odd issue. Our
network (for now) is all static IP. A couple days ago we installed a new
phone system and the techs used a couple addresses in our subnet range
without asking me. One for the system console and one for voicemail. On
beknowngst to them one was in use by another device and we are getting
odd symptoms on the phome system.

I have a bunch of Win-98 PCs that do not show up in the DNS reverse
lookup table as well as some printers and net switches that also do not.
I can't find address IP x.x.x.15 anywhere after running all over and
IPCONFIGing all the older PCs and such. I can PING something with that
address even with the phone system disconnected from the network so I
know it is out there. TRACERT is no help because whatever it is does not
identify with a name.

Another other tricks for figuring out what it might be? Even just what
type of device (printer, PC, switch, etc..) would help a lot. For the
future I think I will see if I can manually make DNS entries and add
descriptions for the odd devices....when I can find them.

Thanks,
Todd Caughey
Harvey Vogel Mfg. Co.

[Non-text portions of this message have been removed]

[Non-text portions of this message have been removed]

system · February 15, 2008, 1:38pm

Why not just change the ip addresses of the system console and the
voicemail?

Todd

From: vantage@yahoogroups.com [mailto:vantage@yahoogroups.com] On Behalf
Of Todd Caughey
Sent: Friday, February 15, 2008 9:59 AM
To: vantage@yahoogroups.com
Subject: [Vantage] [OT] Network Question: How to find device for an IP
address

Maybe one of you network experts can help me with an odd issue. Our
network (for now) is all static IP. A couple days ago we installed a new
phone system and the techs used a couple addresses in our subnet range
without asking me. One for the system console and one for voicemail. On
beknowngst to them one was in use by another device and we are getting
odd symptoms on the phome system.

I have a bunch of Win-98 PCs that do not show up in the DNS reverse
lookup table as well as some printers and net switches that also do not.
I can't find address IP x.x.x.15 anywhere after running all over and
IPCONFIGing all the older PCs and such. I can PING something with that
address even with the phone system disconnected from the network so I
know it is out there. TRACERT is no help because whatever it is does not
identify with a name.

Another other tricks for figuring out what it might be? Even just what
type of device (printer, PC, switch, etc..) would help a lot. For the
future I think I will see if I can manually make DNS entries and add
descriptions for the odd devices....when I can find them.

Thanks,
Todd Caughey
Harvey Vogel Mfg. Co.

[Non-text portions of this message have been removed]

This e-mail and any attachments may contain confidential and privileged
information. If you are not the intended recipient, please notify the
sender immediately by return e-mail, delete this e-mail and destroy any
copies. Any dissemination or use of this information by a person other
than the intended recipient is unauthorized and may be illegal.

[Non-text portions of this message have been removed]

system · February 15, 2008, 3:04pm

Try www.komododigital.com and download their Newt Freeware. A great
little program that will identify devices on your network.

Shirley graver

_____

From: vantage@yahoogroups.com [mailto:vantage@yahoogroups.com] On Behalf Of
rfc822 Compliance issue From: added by system POTENTIAL SPAM
Sent: Friday, February 15, 2008 1:39 PM
To: vantage@yahoogroups.com
Subject: RE: [Vantage] [OT] Network Question: How to find device for an IP
address

Why not just change the ip addresses of the system console and the
voicemail?

Todd

From: vantage@yahoogroups <mailto:vantage%40yahoogroups.com> .com
[mailto:vantage@yahoogroups <mailto:vantage%40yahoogroups.com> .com] On
Behalf
Of Todd Caughey
Sent: Friday, February 15, 2008 9:59 AM
To: vantage@yahoogroups <mailto:vantage%40yahoogroups.com> .com
Subject: [Vantage] [OT] Network Question: How to find device for an IP
address

Maybe one of you network experts can help me with an odd issue. Our
network (for now) is all static IP. A couple days ago we installed a new
phone system and the techs used a couple addresses in our subnet range
without asking me. One for the system console and one for voicemail. On
beknowngst to them one was in use by another device and we are getting
odd symptoms on the phome system.

I have a bunch of Win-98 PCs that do not show up in the DNS reverse
lookup table as well as some printers and net switches that also do not.
I can't find address IP x.x.x.15 anywhere after running all over and
IPCONFIGing all the older PCs and such. I can PING something with that
address even with the phone system disconnected from the network so I
know it is out there. TRACERT is no help because whatever it is does not
identify with a name.

Another other tricks for figuring out what it might be? Even just what
type of device (printer, PC, switch, etc..) would help a lot. For the
future I think I will see if I can manually make DNS entries and add
descriptions for the odd devices....when I can find them.

Thanks,
Todd Caughey
Harvey Vogel Mfg. Co.

[Non-text portions of this message have been removed]

This e-mail and any attachments may contain confidential and privileged
information. If you are not the intended recipient, please notify the
sender immediately by return e-mail, delete this e-mail and destroy any
copies. Any dissemination or use of this information by a person other
than the intended recipient is unauthorized and may be illegal.

[Non-text portions of this message have been removed]

[Non-text portions of this message have been removed]

system · February 15, 2008, 5:40pm

Ended up doing exactly that. At 1st was looking for less disruptive route if offending device was a printer or something. But being as it was the SAN...no way. So we took the phone system down at lunch time instead.
-Todd C.

________________________________
From: vantage@yahoogroups.com [mailto:vantage@yahoogroups.com] On Behalf Of Todd Hofert
Sent: Friday, February 15, 2008 12:36 PM
To: vantage@yahoogroups.com
Subject: RE: [Vantage] [OT] Network Question: How to find device for an IP address

Why not just change the ip addresses of the system console and the
voicemail?

Todd

From: vantage@yahoogroups.com<mailto:vantage%40yahoogroups.com> [mailto:vantage@yahoogroups.com<mailto:vantage%40yahoogroups.com>] On Behalf
Of Todd Caughey
Sent: Friday, February 15, 2008 9:59 AM
To: vantage@yahoogroups.com<mailto:vantage%40yahoogroups.com>
Subject: [Vantage] [OT] Network Question: How to find device for an IP
address

Maybe one of you network experts can help me with an odd issue. Our
network (for now) is all static IP. A couple days ago we installed a new
phone system and the techs used a couple addresses in our subnet range
without asking me. One for the system console and one for voicemail. On
beknowngst to them one was in use by another device and we are getting
odd symptoms on the phome system.

I have a bunch of Win-98 PCs that do not show up in the DNS reverse
lookup table as well as some printers and net switches that also do not.
I can't find address IP x.x.x.15 anywhere after running all over and
IPCONFIGing all the older PCs and such. I can PING something with that
address even with the phone system disconnected from the network so I
know it is out there. TRACERT is no help because whatever it is does not
identify with a name.

Another other tricks for figuring out what it might be? Even just what
type of device (printer, PC, switch, etc..) would help a lot. For the
future I think I will see if I can manually make DNS entries and add
descriptions for the odd devices....when I can find them.

Thanks,
Todd Caughey
Harvey Vogel Mfg. Co.

[Non-text portions of this message have been removed]

This e-mail and any attachments may contain confidential and privileged
information. If you are not the intended recipient, please notify the
sender immediately by return e-mail, delete this e-mail and destroy any
copies. Any dissemination or use of this information by a person other
than the intended recipient is unauthorized and may be illegal.

[Non-text portions of this message have been removed]

[Non-text portions of this message have been removed]