Date: Thu, 4 Apr 2013 12:11:37 +0430 From: s m <sam.gh1986@gmail.com> To: freebsd-questions <freebsd-questions@freebsd.org> Subject: Fwd: how access inside from outside when nat is done from inside to outside Message-ID: <CAA_1SgEF7RtmY11yjFwFRspY-CwQ0fLqeTGvtx3jHkLQBA4mpQ@mail.gmail.com> In-Reply-To: <CAA_1SgGN7h9d8Rzbuwqa-2HrgwJffrqrfOdzjAqDNbBhkvehPA@mail.gmail.com> References: <CAA_1SgGN7h9d8Rzbuwqa-2HrgwJffrqrfOdzjAqDNbBhkvehPA@mail.gmail.com>
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hello guys i am newbie in nat and have some problem with it. i want to nat inside traffic to outside and when i ping outside from inside, every thing is ok and nat is done perfectly. but when i ping inside from outside, request packets are sent without any nat translation while reply packets are nated and therefore outside system can not recognize reply packets and do not accept them. this is example of packets which are received in a outside system when pings an inside system. request packets: src:192.168.2.1----> dst: 192.168.1.1 reply packets: src: 192.168.2.50----> dst:192.168.2.1 is it a correct behavior or not? and if it is correct, it means that when i configure to nat traffic from inside to outside, i can not access from outside to inside systems? (in cisco router packets are exactly as mention above, but outside system identifies reply packets and therefore accepts them). please let me know if i am misunderstanding. thanks
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