Problem on ICMP Echo : all ip checked reply when firewall is disable.

Discussion in 'Windows Vista Networking' started by Mav, Feb 16, 2007.

  1. Mav

    Mav Guest

    In a Homemade soft, i check avaible ip on the network by checking the reply
    of a ping.
    I use ICMP Echo command of IP Helper api.
    It works perfectly on vista when firewall is enable but when i disable it
    something strange happen.
    My soft scan an IP range, and in this configuration, firewall disable, it
    find reply on all IP checked.
    To verify this result, i try manualy to check those IP by ping command in
    cmd and the result is none IP reply.
    It's very strange, may there is a problem in default ICMP configuration when
    firewall is disable.
    After a long search on net, i don't realy find something that can explain
    the origin of this problem.
    So i come here to ask you some help.
    May someone can have an idea to resolve it.
    I'm open on all opinion or advice.
    Thanks for all.
    Best regards
    Mav, Feb 16, 2007
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