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ARP cache

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  • 15-07-2004 4:21pm
    #1
    Eglinton
    Closed Accounts Posts: 992 ✭✭✭


    How do you flush ARP cache on a NIC when repairing it?

    Thanks


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    #2
    oscarBravo
    Technology & Internet Moderators Posts: 28,807 Mod ✭✭✭✭oscarBravo


    Dunno about Windows, but I believe ARP entries only live about 15 minutes on Linux. Why do you want to flush the cache?


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    #3
    Eglinton
    Closed Accounts Posts: 992 ✭✭✭Eglinton


    its throwing an error when i try to repair the connection. says it can't do it. No other reason really . just wondering what it was


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    #4
    ressem
    Registered Users Posts: 2,426 ✭✭✭ressem


    On windows 2K

    arp -d *

    removes all entries in the arp table.


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    #5
    oscarBravo
    Technology & Internet Moderators Posts: 28,807 Mod ✭✭✭✭oscarBravo


    Can anyone tell me what exactly Windows does when you tell it to "repair" a connection?


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    #6
    jayok
    Registered Users Posts: 1,906 ✭✭✭jayok


    Well it's supposed to do the following:

    1. Clear arp, routing and IP address of the interface
    1.1 (Maybe if DHCP) Get a new IP address
    2. Test the propose IP address for conflicts
    3. Set IP address of the interface and insert into the routing table

    Whether it does or not now...


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    #7
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 91,881 Mod ✭✭✭✭Capt'n Midnight


    on earlier versions of windows ARP entries are deleted after 2 minutes if not used. If used then they are deleted after 10 minutes.

    arp -a to see the current list in case of static entries


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