[ale] Nmap + filtered ports
Calvin Harrigan
charriglists at bellsouth.net
Wed Dec 7 17:08:27 EST 2005
Christopher Fowler wrote:
>Can someone tell me how nmap sees "filtered" ports? I've got my rule se
>to reject and nmap can see that something is there but it is being
>rejected. I thought "REJECT" would appear as if there was no one bind
>()'ing on that port?
>
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I think you're looking confusing "REJECT" with "DROP". "REJECT"
replies with, what is considered proper nettiquette, that the port is
blocked/not accepting connections. "DROP" does just that, drops the
packets to nowheresvile without any replies.
http://www.chiark.greenend.org.uk/~peterb/network/drop-vs-reject
Calvin...
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