Date: Tue, 18 May 2010 21:16:10 +0300 From: =?utf-8?B?0JrQvtC90YzQutC+0LIg0JXQstCz0LXQvdC40Lk=?= <kes-kes@yandex.ru> To: Casey Scott <casey@phantombsd.org> Cc: freebsd-questions@freebsd.org Subject: Re: natd in 8.1 Message-ID: <806308022.20100518211610@yandex.ru> In-Reply-To: <963159806.27.1274197870913.JavaMail.root@spitfire.phantombsd.org> References: <963159806.27.1274197870913.JavaMail.root@spitfire.phantombsd.org>
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Здравствуйте, Casey. What does natd with '-v' options shows? what is aliasing? You must bind natd to external interface NEVER DO: any to any divert!!! NOTICE: no traffice go through this rule CS> 05000 0 0 divert 8668 ip from any to any out via fxp0 NEVER DO: open firewall because of security reasons CS> 05001 29 1484 allow ip from any to any All 'ALLOW' rules are useless! because of 5001 rule You drop all traffic before divert ;-) this make me confused a little CS> 04000 752 24282 deny log logamount 10000 ip from any to any CS> 05000 0 0 divert 8668 ip from any to any out via fxp0 NOTICE: CS> 01200 29 1484 skipto 5000 ip from 192.168.1.0/24 to any out via fxp0 setup keep-state maybe there some bugs in ipfw, try 4999 Please post where problem were for other readers with same question thank Вы писали 18 мая 2010 г., 18:51:10: CS> I recently rebuilt a server from 7.x to 8.x. Using the exact CS> same firewall & natd config, natd appears not to be aliasing the CS> private address when the traffic leaves the external interface. CS> When sniffing traffic w/ tcpdump, I see the private address as the CS> source address on the outbound request. CS> e.g. CS> 192.168.1.1 = internal source of request CS> 74.75.76.77 = public address (website) CS> 12.13.14.15 = CS> Internal External 192.168.1.10 ->> 74.75.76.77 (NAT) 192.168.1.10 -> 74.75.76.77 CS> Rather than it should be: CS> Internal External 192.168.1.10 ->> 74.75.76.77 (NAT) 12.13.14.15 -> 74.75.76.77 CS> Watching natd with ktrace shows that no traffic gets passed to CS> natd when the source is internal, however external traffic passes through it. CS> Firewall config: CS> --------------------------------------------------------------------------- CS> 00200 11946 3204818 allow ip from any to any via lo0 CS> 00300 0 0 deny ip from any to 127.0.0.0/8 CS> 00301 10 528 deny ip from any to 74.94.69.225 dst-port 445 CS> 00302 1 78 deny ip from any to 74.94.69.225 dst-port 137 CS> 00303 9 544 deny ip from any to 74.94.69.225 dst-port 135 CS> 00304 0 0 deny ip from 224.0.0.0/4 to any via fxp0 CS> 00305 671 18788 deny ip from any to 224.0.0.0/4 via fxp0 CS> 01000 9093 1158436 allow ip from any to any via em0 CS> 01050 51045 5205047 divert 8668 ip from any to any in via fxp0 CS> 01100 0 0 check-state CS> 01100 69183 83429465 allow ip from me to any CS> 01200 29 1484 skipto 5000 ip from 192.168.1.0/24 to any out via fxp0 setup keep-state CS> 01201 0 0 skipto 5000 udp from 192.168.1.0/24 to any out via fxp0 keep-state CS> 01202 45002 4690467 allow ip from any to any established CS> 01800 1421 72620 allow tcp from any to me dst-port 20,21,53,76,80,123,443 CS> 01900 3 194 allow ip from 216.251.112.0/24,208.95.100.4 to any CS> 02000 530 127559 allow udp from any 53 to any CS> 02100 834 59414 allow udp from any to any dst-port 53 CS> 02150 1930 146680 allow udp from any 123 to me dst-port 123 CS> 02200 468 39312 allow icmp from any to any icmptypes 0,3,11 CS> 04000 752 24282 deny log logamount 10000 ip from any to any CS> 05000 0 0 divert 8668 ip from any to any out via fxp0 CS> 05001 29 1484 allow ip from any to any CS> 65535 0 0 deny ip from any to any CS> --------------------------------------------------------------------------- CS> natd.conf CS> --------------------------------------------------------------------------- CS> use_sockets CS> same_ports CS> unregistered_only CS> interface fxp0 CS> redirect_port tcp 192.168.1.82:82 82 CS> redirect_port tcp 192.168.1.41:8082 8082 CS> redirect_port tcp 192.168.1.3:3389 3389 CS> redirect_port udp 192.168.1.3:3389 3389 CS> redirect_port tcp 192.168.1.6:6881-6889 6881-6889 CS> --------------------------------------------------------------------------- CS> As I previously stated, this exact same config worked great in CS> 7.x. I built a kernel in 8.x w/ IPFIREWALL & IPDIVERT, and CS> reviewed UPDATING. Have I missed something? CS> TIA, CS> Casey CS> _______________________________________________ CS> freebsd-questions@freebsd.org mailing list CS> http://lists.freebsd.org/mailman/listinfo/freebsd-questions CS> To unsubscribe, send any mail to CS> "freebsd-questions-unsubscribe@freebsd.org" -- С уважением, Коньков mailto:kes-kes@yandex.ru
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