Date: Fri, 13 May 2005 19:43:21 +0300 (EEST) From: BigBrother-{BigB3} <bigbrother@bonbon.net> Cc: freebsd-security@freebsd.org Subject: Re[3]: icmp problem Message-ID: <20050513193813.W73276@bigb3server.bbcluster.gr> In-Reply-To: <1121231288.20050513172559@625.ru> References: 6667 <20050511205723.48284.qmail@web41210.mail.yahoo.com> <20050513092907.J73276@bigb3server.bbcluster.gr> <1121231288.20050513172559@625.ru>
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On Fri, 13 May 2005, Danil V. Gerun wrote: > BB> In my NATED (ipfw+natd) lan EVERY internal host (192.168.XX) can ping > BB> simultaneously any external host and ALL getting their proper ICMP > BB> replies. > > Well, I didn't configure "ICMP NAT" for my LAN, but I'm just > wondering: what if _some_ internal hosts start pinging one external > host? Is each of them going to recieve all the icmp replies?.. > > > As I told you If _some_ internal hosts start pinging one external host, everyone gets their proper answer. They are not going to receive all the icmp replies. Everyone receives his reply. Use natd -v to figure out Here is a snip: Out [ICMP] [ICMP] 192.168.???.130 -> 192.108.???.43 8(0) aliased to [ICMP] 193.92.???.26 -> 192.108.???.43 8(0) In [ICMP] [ICMP] 192.108.???.43 -> 193.92.???.26 0(0) aliased to [ICMP] 192.108.???.43 -> 192.168.???.130 0(0) Make some experiments with natd -v and you will understand this. --- Dreams have no limits!
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