Static ARP entries appearing on Windows 2003 server

Discussion in 'Windows Networking' started by Mr BJC, Aug 12, 2004.

  1. Mr BJC

    Mr BJC Guest

    Setup:
    Windows 2003 Server (all updates applied) running as only DC on
    network.(AD/DNS)
    DHCP is configured on Cisco PIX and distributes address for DNS server
    above.
    Windows XP workstations (all updates applied).

    I am seeing mysterious static workstation entries in the ARP cache on
    my Windows 2003 server. This is causing headaches, as PCs that get
    new addresses from DHCP that correspond to the static entries in ARP
    aren't able to communicate with the Windows 2003 server.

    I basically see a static and dynamic ARP entry for the same MAC with
    different IP addresses. This does not affect our other Windows 2000
    and Windows NT servers. I can still ping them and any other computer
    on the network. I'm guessing my XP workstations send requests to this
    server, but then the packets are routed(or lost) because of the old
    static ARP entry that exists on the server.

    I realize that I can just remove these static entries or flush the ARP
    cache when this happens, but I shouldn't have to.

    I have seen a similar post titled "DHCP and Mysterious static ARPs
    Windows 2003", but there were no responses. Is this a known Server
    2003 issue? We didn't experience this prior to installing the 2003
    server and XP workstations.
     
    Mr BJC, Aug 12, 2004
    #1
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  2. Mr BJC

    netneg Guest

    Sounds like an issue. The arp entries should expire and flush themselves
    from the table. You should then only see only valid translations. Weird.
     
    netneg, Aug 13, 2004
    #2
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