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    <title><![CDATA[Discussion on Quickly gather MAC addresses in Windows XP with ARP ]]></title>
    <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543]]></link>
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    <language>en-us</language>
    <lastBuildDate>2013-06-19T15:26:08-07:00</lastBuildDate>
             

    <item>
        <title><![CDATA[Cool Stuff]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2631260]]></link>
        <description><![CDATA[This is working excellent for me.  Thanks a lot buddy]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2631260]]></guid>
        <dc:creator><![CDATA[Sundaram Ramanujam]]></dc:creator>
        <pubDate>Tue, 04 Nov 2008 00:14:39 -0800</pubDate>
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    <item>
        <title><![CDATA[Get the PC Name windows]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2631259]]></link>
        <description><![CDATA[Go to the command prompt. CMD and then type hostname.  This command will show the pc name.]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2631259]]></guid>
        <dc:creator><![CDATA[Sundaram Ramanujam]]></dc:creator>
        <pubDate>Tue, 04 Nov 2008 00:12:09 -0800</pubDate>
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    <item>
        <title><![CDATA[Nice Stuff]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2631258]]></link>
        <description><![CDATA[Nice stuff. Let me check]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2631258]]></guid>
        <dc:creator><![CDATA[Sundaram Ramanujam]]></dc:creator>
        <pubDate>Tue, 04 Nov 2008 00:10:19 -0800</pubDate>
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    <item>
        <title><![CDATA[You cleared up all my questions...]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2539020]]></link>
        <description><![CDATA[Thanks, I just tried it and it works like a charm. Both of you have added a new tool to my arsenal...]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2539020]]></guid>
        <dc:creator><![CDATA[Tad Diego]]></dc:creator>
        <pubDate>Thu, 03 Jul 2008 16:09:58 -0700</pubDate>
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    <item>
        <title><![CDATA[Record on WEP is 8 seconds...]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2538464]]></link>
        <description><![CDATA[Will try to find the link again it was off the aircrackng site (appropriately).]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2538464]]></guid>
        <dc:creator><![CDATA[Dumphrey]]></dc:creator>
        <pubDate>Thu, 03 Jul 2008 07:18:47 -0700</pubDate>
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    <item>
        <title><![CDATA[Once you have the IP]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2538426]]></link>
        <description><![CDATA[ping the device.  If your network is set up appropriately, the ping will return the device name.]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2538426]]></guid>
        <dc:creator><![CDATA[NickNielsen]]></dc:creator>
        <pubDate>Thu, 03 Jul 2008 06:54:37 -0700</pubDate>
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    <item>
        <title><![CDATA[Script for used/unused IP addresses]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2538277]]></link>
        <description><![CDATA[How to get the pc name for windows based pcs? Thank you.]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2538277]]></guid>
        <dc:creator><![CDATA[skhan@...]]></dc:creator>
        <pubDate>Thu, 03 Jul 2008 04:30:00 -0700</pubDate>
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    <item>
        <title><![CDATA[It's in the post...and the script]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2538273]]></link>
        <description><![CDATA[The command line syntax is:arpping net_address first_address last_addressWhere:net_address = the first three octets of the local subnetfirst_address = the first address you wish to searchlast_address = the last address you wish to searchSo to search all the subnet at 10.20.30, your input would be:arpping 10.20.30 1 254]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2538273]]></guid>
        <dc:creator><![CDATA[NickNielsen]]></dc:creator>
        <pubDate>Thu, 03 Jul 2008 04:27:09 -0700</pubDate>
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    <item>
        <title><![CDATA[ipconfig /all is better]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2538171]]></link>
        <description><![CDATA[Agree, but a script to know all NIC details on the Network is still better...]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2538171]]></guid>
        <dc:creator><![CDATA[skhan@...]]></dc:creator>
        <pubDate>Wed, 02 Jul 2008 22:52:42 -0700</pubDate>
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        <title><![CDATA[What input do you give to this batch file?]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2537694]]></link>
        <description><![CDATA[I'd like to try your file, but I can't figure out what input is needed? A file full of IP addresses? A network range? What do you actually type at the command line?]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2537694]]></guid>
        <dc:creator><![CDATA[Tad Diego]]></dc:creator>
        <pubDate>Wed, 02 Jul 2008 10:24:17 -0700</pubDate>
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        <title><![CDATA[To get all MACs...]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2522221]]></link>
        <description><![CDATA[The most reliable way for you to get ALL mac addresses is to telnet to your switch and get the MAC table from your switch. As one person mentioned above if you are VLANing off, you will often have issues where a switch will block MAC addresses from being passed across VLANs.Also WINDOWS will only cache MAC addresses of machines it has contacted, so you will need to ping either by name (if you have NetBIOS on or DNS/WINS running) or IP address all IP addresses in your range. This can easily be batched as mentioned above.At that point the ARP cache will be populated for ten minutes. YOu can then issue the ARP -a and look at the MAC addresses. The idea in looking at Show ARP command on the switch which is valid on even unmanaged switched most of the time, is that ALL systems must register their MAC address for store and forward on the switch. Therefore, all MAC addresses will be present on the switch. The workstation will only have the MAC address in its arp cache if it has had reason to directly communicate with the system in question.This ARP -a caveat/switch goes away if you are on a hub as everything is broadcast across a hub and your workstation will in fact have all MAC addresses in the network in its ARP table.For those that want a WINDOWS software that will put your computer NIC in promiscuous mode and will gather data such as MAC address information outside of the switch port it is on, check out packetyzer from sourceforge.net. It uses winpcap as the framework and is an opensource sniffer. One of the most powerful open source sniffers in the world out there, and it works phenomenally.You cannot go wrong. Mirror your workstation switch port, and put your nic in promiscuous mode to capture all packets. Run packetyzer and set it to filter on MAC address by RARP. You will capture every MAC in just a few seconds no matter how large your network is.Check out http://sourcefore.net/packetyzerTHE Engineerwindowsmt60@hotmail.com]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2522221]]></guid>
        <dc:creator><![CDATA[mtoney@...]]></dc:creator>
        <pubDate>Fri, 13 Jun 2008 08:09:56 -0700</pubDate>
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    <item>
        <title><![CDATA[Defaults for Multicast]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2522042]]></link>
        <description><![CDATA[Thank you for your reply.  I had hoped it was something along those lines.]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2522042]]></guid>
        <dc:creator><![CDATA[robert.taubert@...]]></dc:creator>
        <pubDate>Fri, 13 Jun 2008 06:00:14 -0700</pubDate>
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    <item>
        <title><![CDATA[Defaults for Multicast]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2521996]]></link>
        <description><![CDATA[Try ROUTE -PRINT on any IPV4 computer and you'll see similar results.The 239.x and 240.x addresses are for multicast, the 255.x address is the default for any routes not covered.Here are the IANA assignments for IPV4: http://www.iana.org/assignments/ipv4-address-space They no doubt have the same info for V6.]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2521996]]></guid>
        <dc:creator><![CDATA[Marty R. Milette]]></dc:creator>
        <pubDate>Fri, 13 Jun 2008 05:28:39 -0700</pubDate>
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    <item>
        <title><![CDATA[RE: Quickly gather MAC addresses in Windows XP with ARP]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2521686]]></link>
        <description><![CDATA[I tried ARP -a on Vista Ultimate.  In addition to the expected mac addresses I got back several I didn't recognize.I have a wireless router but have wireless turned off because everything I use is wired.  I even removed the antennas.All of my IP addresses start with 192.x.x.x so when I saw the following I began to wonder:224.0.0.2        01-00-5e-00-00-02  Static224.0.0.22       01-00-5e-00-00-16  static224.0.0.252      01-00-5e-00-00-fc  static239.255.255.250  01-00-5e-00-00-fa  static255.255.255.255  ff-ff-ff-ff-ff-ff  staticCan anyone shed any light on where these might be coming from?????]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2521686]]></guid>
        <dc:creator><![CDATA[robert.taubert@...]]></dc:creator>
        <pubDate>Thu, 12 Jun 2008 15:29:05 -0700</pubDate>
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    <item>
        <title><![CDATA[RE: Quickly gather MAC addresses in Windows XP with ARP]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2519374]]></link>
        <description><![CDATA[nbtstat -a (ip) u will get the mac of it]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2519374]]></guid>
        <dc:creator><![CDATA[randy.caoctoy@...]]></dc:creator>
        <pubDate>Tue, 10 Jun 2008 02:05:34 -0700</pubDate>
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    <item>
        <title><![CDATA[Trying to isolate MAC addresses - Answer]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2518659]]></link>
        <description><![CDATA[Hi.Thanks!Don't understand the /S switch, though.I will investigate :0)]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2518659]]></guid>
        <dc:creator><![CDATA[Smart_Neuron]]></dc:creator>
        <pubDate>Mon, 09 Jun 2008 07:47:46 -0700</pubDate>
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        <title><![CDATA[The script I use (to find unused IP addresses in my network)]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2518038]]></link>
        <description><![CDATA[This is the one I use to find unused IP addresses in my network. You can specify a range of IPs to scan, and it shows you the MAC addresses of the IPs that are in use as well as a list of IPs (denoted by an &quot;invalid&quot; or 00:00:00:00:00:00) that are not being used.@echo offIF [%3]==[] goto syntaxfor /l %%i in (%2,1,%3) do (@echo Trying IP %1.%%i  ping -n 1 -l 1 -w 2 %1.%%i &gt; nul  arp -a | findstr /c:&quot;%1.%%i&quot; &gt;&gt; temp.lst)@echo Used IPsfindstr dynamic temp.lst@echo Available IPsfindstr invalid temp.lstdel temp.lstgoto :eof:syntax    @echo.    @echo Usage: arpping net_address first_address last_address    @echo        eg. arpping 172.16.1 1 254    @echo.]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2518038]]></guid>
        <dc:creator><![CDATA[kaashif.junk@...]]></dc:creator>
        <pubDate>Sun, 08 Jun 2008 01:40:17 -0700</pubDate>
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        <title><![CDATA[Trying to isolate MAC addresses - Answer]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2516644]]></link>
        <description><![CDATA[Use the /V option with GETMAC, and it will tell you which interface has each MAC address. Format is getmac /V /S pcname. I have to use this to distinguish VMWare MAC addresses, as well as wired/wireless interfaces.]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2516644]]></guid>
        <dc:creator><![CDATA[gjadams]]></dc:creator>
        <pubDate>Fri, 06 Jun 2008 04:25:22 -0700</pubDate>
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        <title><![CDATA[getmac on Vista]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2516527]]></link>
        <description><![CDATA[Seems to be native]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2516527]]></guid>
        <dc:creator><![CDATA[Rick Hults]]></dc:creator>
        <pubDate>Fri, 06 Jun 2008 00:25:20 -0700</pubDate>
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        <title><![CDATA[Trying to isolate MAC addresses - Question.]]></title>
        <link><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2516457]]></link>
        <description><![CDATA[Hi.I am using a &quot;standalone&quot; PC on an ISP with a Cable Modem. How do I actually identify the MAC for the PC Network Interface *and* the Cable modem?I tried GETMAC, (XP), but it does not tell me what device is what - any suggestions?Thanks - :0)]]></description>
        <guid><![CDATA[http://www.techrepublic.com/forum/discussions/102-265543-2516457]]></guid>
        <dc:creator><![CDATA[Smart_Neuron]]></dc:creator>
        <pubDate>Thu, 05 Jun 2008 18:06:06 -0700</pubDate>
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