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Re: port unreachable and UDP scanning
From: Fyodor <fyodor () insecure org>
Date: Mon, 16 Dec 2002 17:57:57 -0800

On Mon, Dec 02, 2002 at 11:43:41PM +0100, R Anderson wrote:

  case 3: /* p0rt unreachable */              
- if (scantype == UDP_SCAN) {
+ if (scantype == UDP_SCAN && ip->ip_src.s_addr ==
+    target->v4host().s_addr) {
        newstate = PORT_CLOSED;
  } else newstate = PORT_FIREWALLED;

I agree that this extra test makes sense and will include the change
in the next version of Nmap.

Cheers,
-F

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