RE: Finding device on network via cisco switch [7:65670]
Try using the switch command: show mac you should get an output similar to this: switch_named#sh mac Dynamic Address Count: 215 Secure Address Count: 0 Static Address (User-defined) Count: 0 System Self Address Count: 47 Total MAC addresses: 262 Maximum MAC addresses: 2048 Non-static Address Table: Destination Address Address Type VLAN Destination Port --- 00b2.2d6a.dfae Dynamic 1 FastEthernet0/23 00b2.fd6c.46c1 Dynamic 1 FastEthernet0/24 00b0.c154.edb9 Dynamic 1 FastEthernet0/3 00b0.2757.96ba Dynamic 1 FastEthernet0/12 00b0.b784.fad2 Dynamic 1 FastEthernet0/2 00b0.b784.fbf4 Dynamic 1 FastEthernet0/6 00b0.b784.fced Dynamic 1 FastEthernet0/7 00b0.b784.fd34 Dynamic 1 FastEthernet0/8 00b0.b784.fd75 Dynamic 1 FastEthernet0/5 00b0.b784.fd83 Dynamic 1 FastEthernet0/10 00b0.b793.47ef Dynamic 1 FastEthernet0/1 00b0.b793.a2ef Dynamic 1 FastEthernet0/11 Hth, Angel -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Ristau Sent: Tuesday, March 18, 2003 10:52 AM To: [EMAIL PROTECTED] Subject: Finding device on network via cisco switch [7:65670] given an IP address and a MAC address, how can I use my cisco switch to identify which port an unknown device is attached to ? can I view the switching table cache entries ? I've got an IP device on the network and nobody seems to know where it is. heh! given a catalyst 3500XL running ios v 12.0 thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=65681&t=65670 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Finding device on network via cisco switch [7:65670]
Start at your core and work your way out. For example, if you have a core switch connected to other switches at the distribution or accesss layers via trunks, do a show mac-address-table (or show cam dynamic for CatOS switches) and see which trunk port it is coming from. Then go to the next switch and do the same thing. Eventually you will get to the switch to which it is directly connected and get the actual port. Of course, if you are using VLANs or otherwise subnetting your network, you can narrow down your search quite a bit by only searching switches that carry that VLAN. ""David Ristau"" wrote in message news:[EMAIL PROTECTED] > given an IP address and a MAC address, how can I use my cisco switch to > identify which port an unknown device is attached to ? > > can I view the switching table cache entries ? > > I've got an IP device on the network and nobody seems to know where it is. > heh! > > given a catalyst 3500XL running ios v 12.0 > > thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=65679&t=65670 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Finding device on network via cisco switch [7:65670]
On a 2900XL it is sh mac-address-table address ... Result should show destination port. Be aware if other switches are connected to that port. > -Original Message- > From: David Ristau [mailto:[EMAIL PROTECTED] > Sent: Tuesday, March 18, 2003 10:52 AM > To: [EMAIL PROTECTED] > Subject: Finding device on network via cisco switch [7:65670] > > > given an IP address and a MAC address, how can I use my cisco > switch to > identify which port an unknown device is attached to ? > > can I view the switching table cache entries ? > > I've got an IP device on the network and nobody seems to know > where it is. > heh! > > given a catalyst 3500XL running ios v 12.0 > > thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=65682&t=65670 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Finding device on network via cisco switch [7:65670]
For Catalyst (set) IOS use show cam dynamic. You can add a vlan argument if you have multiple vlans and know which one your mac addr is on. At 07:14 PM 3/18/03 GMT, you wrote: >On a 2900XL it is >sh mac-address-table address ... Result should show destination >port. Be aware if other switches are connected to that port. > >> -Original Message- >> From: David Ristau [mailto:[EMAIL PROTECTED] >> Sent: Tuesday, March 18, 2003 10:52 AM >> To: [EMAIL PROTECTED] >> Subject: Finding device on network via cisco switch [7:65670] >> >> >> given an IP address and a MAC address, how can I use my cisco >> switch to >> identify which port an unknown device is attached to ? >> >> can I view the switching table cache entries ? >> >> I've got an IP device on the network and nobody seems to know >> where it is. >> heh! >> >> given a catalyst 3500XL running ios v 12.0 >> >> thanks -- Karyn Williams, CNE Network Services Manager California Institute of the Arts [EMAIL PROTECTED] http://www.calarts.edu/network Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=65694&t=65670 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Finding device on network via cisco switch [7:65670]
Or this command show mac-address-table address .. (zeros being the mac address you are looking for.) Cheers -Original Message- From: Angel Leiva [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 18, 2003 8:31 PM To: [EMAIL PROTECTED] Subject: RE: Finding device on network via cisco switch [7:65670] Try using the switch command: show mac you should get an output similar to this: switch_named#sh mac Dynamic Address Count: 215 Secure Address Count: 0 Static Address (User-defined) Count: 0 System Self Address Count: 47 Total MAC addresses: 262 Maximum MAC addresses: 2048 Non-static Address Table: Destination Address Address Type VLAN Destination Port --- 00b2.2d6a.dfae Dynamic 1 FastEthernet0/23 00b2.fd6c.46c1 Dynamic 1 FastEthernet0/24 00b0.c154.edb9 Dynamic 1 FastEthernet0/3 00b0.2757.96ba Dynamic 1 FastEthernet0/12 00b0.b784.fad2 Dynamic 1 FastEthernet0/2 00b0.b784.fbf4 Dynamic 1 FastEthernet0/6 00b0.b784.fced Dynamic 1 FastEthernet0/7 00b0.b784.fd34 Dynamic 1 FastEthernet0/8 00b0.b784.fd75 Dynamic 1 FastEthernet0/5 00b0.b784.fd83 Dynamic 1 FastEthernet0/10 00b0.b793.47ef Dynamic 1 FastEthernet0/1 00b0.b793.a2ef Dynamic 1 FastEthernet0/11 Hth, Angel -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Ristau Sent: Tuesday, March 18, 2003 10:52 AM To: [EMAIL PROTECTED] Subject: Finding device on network via cisco switch [7:65670] given an IP address and a MAC address, how can I use my cisco switch to identify which port an unknown device is attached to ? can I view the switching table cache entries ? I've got an IP device on the network and nobody seems to know where it is. heh! given a catalyst 3500XL running ios v 12.0 thanks NOTICE - This message contains privileged and confidential information intended only for the use of the addressee named above. Any review, retransmission, dissemination, copying, disclosure or other use of, or taking of any action in reliance upon, this information by person or entities other than the intended recipient is prohibited. If you have received this message in error, please notify the sender by return email and delete this message. This message should not be copied or used for any purpose other than intended, nor should it be disclosed to any other person. Any views expressed in this message are those of the individual sender, except where the sender specifically states them to be the view of Investec Group, its subsidiaries or associates. The Investec Group is not liable for the security of information sent by e-mail at your request, nor for the proper and complete transmission of the information contained in the communication nor for any delay in its receipt. Please note that the recipient must scan this e-mail and any attached files for viruses and the like. The Investec Group accepts no liability of whatever nature for any loss, liability, damage or expense resulting directly or indirectly from the access of any files which are attached to this message. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=65811&t=65670 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
