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Network and Classroom Management Thread, Network in Technical; ok just checked in dns under reverse lookup zone and there is a zone 15.25.10-in-addr.arpa ??? with all of my ...
  1. #16
    kevin_lane's Avatar
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    ok just checked in dns under reverse lookup zone and there is a zone 15.25.10-in-addr.arpa ??? with all of my 3 DCs in how is that even poss

  2. #17
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    but I don't give out 10.25.15

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    nmap and / or wireshark (or windows network monitor)

    nmap will let you probe an ip address
    wireshark (wnm) will let you trace traffic and see what the source of the traffic is

    As mentioned something is broadcasting

    I'd try wireshark first and see what you can get from a trace, Only thing I can think off the top of my head is that either you have a little hacker or some net service causing a broadcast storm.

  4. #19

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    Broadcast address is defined by netmask, what netmask are you using?


    255.255.252.0 (22)

    that gives you broadcast of 10.25.15.255

    IP Calculator / IP Subnetting

  5. #20

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    arp -a <ip address>

    or just

    arp -a

    to get a table of mac/ips or just

    arp

    will give command line options

    I think that the device has to be on the same subnet/vlan to get its mac address back tho.
    Last edited by mikeyd101; 21st March 2014 at 01:49 PM.

  6. #21
    kevin_lane's Avatar
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    well I have managed to get the mac address

    10.25.15.255

    mac address 1C:C1E:58:6A:55 and the manufacturer is HP

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