From owner-freebsd-i386@FreeBSD.ORG Sat May 28 11:30:09 2011 Return-Path: Delivered-To: freebsd-i386@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7CAC91065670 for ; Sat, 28 May 2011 11:30:09 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 4E8E98FC1A for ; Sat, 28 May 2011 11:30:09 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id p4SBU98l060366 for ; Sat, 28 May 2011 11:30:09 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p4SBU9jq060363; Sat, 28 May 2011 11:30:09 GMT (envelope-from gnats) Resent-Date: Sat, 28 May 2011 11:30:09 GMT Resent-Message-Id: <201105281130.p4SBU9jq060363@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-i386@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Eugen Konkov Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 71E61106566B for ; Sat, 28 May 2011 11:20:43 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id 609D58FC17 for ; Sat, 28 May 2011 11:20:43 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.4/8.14.4) with ESMTP id p4SBKg0w021364 for ; Sat, 28 May 2011 11:20:42 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.4/8.14.4/Submit) id p4SBKgVQ021363; Sat, 28 May 2011 11:20:42 GMT (envelope-from nobody) Message-Id: <201105281120.p4SBKgVQ021363@red.freebsd.org> Date: Sat, 28 May 2011 11:20:42 GMT From: Eugen Konkov To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: i386/157379: mtr does not work if I use ipfw nat X-BeenThere: freebsd-i386@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: I386-specific issues for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 28 May 2011 11:30:09 -0000 >Number: 157379 >Category: i386 >Synopsis: mtr does not work if I use ipfw nat >Confidential: no >Severity: serious >Priority: high >Responsible: freebsd-i386 >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sat May 28 11:30:08 UTC 2011 >Closed-Date: >Last-Modified: >Originator: Eugen Konkov >Release: 9.0-CURRENT >Organization: ISP FreeLine >Environment: uname -a FreeBSD bor 9.0-CURRENT FreeBSD 9.0-CURRENT #1: Wed Feb 23 09:39:22 UTC 2011 @:/usr/obj/usr/src/sys/KES_KERN_v9 i386 >Description: mtr 213.180.204.3 mtr 94.100.191.203 while doing mtr on other session do tcpdump: listening on vlan407, link-type EN10MB (Ethernet), capture size 65535 bytes 13:15:22.791802 IP 77.93.52.4 > 213.180.204.3: ICMP echo request, id 55338, seq 59520, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 fe72 0000 0101 9831 4d5d 3404 d5b4 .@.r.....1M]4... 0x0020: cc03 0800 3754 d82a e880 0000 0000 0000 ....7T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:22.892287 IP 77.93.52.4 > 213.180.204.3: ICMP echo request, id 55338, seq 59776, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 fe75 0000 0201 972e 4d5d 3404 d5b4 .@.u......M]4... 0x0020: cc03 0800 3654 d82a e980 0000 0000 0000 ....6T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:22.992803 IP 77.93.52.4 > 213.180.204.3: ICMP echo request, id 55338, seq 60032, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 fe7c 0000 0301 9627 4d5d 3404 d5b4 .@.|.....'M]4... 0x0020: cc03 0800 3554 d82a ea80 0000 0000 0000 ....5T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:23.093404 IP 77.93.52.4 > 213.180.204.3: ICMP echo request, id 55338, seq 60288, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 fe7f 0000 0401 9524 4d5d 3404 d5b4 .@.......$M]4... 0x0020: cc03 0800 3454 d82a eb80 0000 0000 0000 ....4T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:23.193854 IP 77.93.52.4 > 213.180.204.3: ICMP echo request, id 55338, seq 60544, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 fe85 0000 0501 941e 4d5d 3404 d5b4 .@........M]4... 0x0020: cc03 0800 3354 d82a ec80 0000 0000 0000 ....3T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:23.294431 IP 77.93.52.4 > 213.180.204.3: ICMP echo request, id 55338, seq 60800, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 fe89 0000 0601 931a 4d5d 3404 d5b4 .@........M]4... 0x0020: cc03 0800 3254 d82a ed80 0000 0000 0000 ....2T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:23.394907 IP 77.93.52.4 > 213.180.204.3: ICMP echo request, id 55338, seq 61056, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 fe8e 0000 0701 9215 4d5d 3404 d5b4 .@........M]4... 0x0020: cc03 0800 3154 d82a ee80 0000 0000 0000 ....1T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:23.538341 IP 77.93.52.4 > 213.180.204.3: ICMP echo request, id 55338, seq 61312, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 fe90 0000 0101 9813 4d5d 3404 d5b4 .@........M]4... 0x0020: cc03 0800 3054 d82a ef80 0000 0000 0000 ....0T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:23.681751 IP 77.93.52.4 > 213.180.204.3: ICMP echo request, id 55338, seq 61568, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 fe9b 0000 0201 9708 4d5d 3404 d5b4 .@........M]4... 0x0020: cc03 0800 2f54 d82a f080 0000 0000 0000 ..../T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:23.913457 IP 77.93.52.4 > 213.180.204.3: ICMP echo request, id 55338, seq 61824, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 fea3 0000 0301 9600 4d5d 3404 d5b4 .@........M]4... 0x0020: cc03 0800 2e54 d82a f180 0000 0000 0000 .....T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:24.057309 IP 77.93.52.4 > 213.180.204.3: ICMP echo request, id 55338, seq 62080, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 fea7 0000 0401 94fc 4d5d 3404 d5b4 .@........M]4... 0x0020: cc03 0800 2d54 d82a f280 0000 0000 0000 ....-T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:24.200882 IP 77.93.52.4 > 213.180.204.3: ICMP echo request, id 55338, seq 62336, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 feaa 0000 0501 93f9 4d5d 3404 d5b4 .@........M]4... 0x0020: cc03 0800 2c54 d82a f380 0000 0000 0000 ....,T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:24.344392 IP 77.93.52.4 > 213.180.204.3: ICMP echo request, id 55338, seq 62592, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 feb0 0000 0601 92f3 4d5d 3404 d5b4 .@........M]4... 0x0020: cc03 0800 2b54 d82a f480 0000 0000 0000 ....+T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:24.487980 IP 77.93.52.4 > 213.180.204.3: ICMP echo request, id 55338, seq 62848, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 feb4 0000 0701 91ef 4d5d 3404 d5b4 .@........M]4... 0x0020: cc03 0800 2a54 d82a f580 0000 0000 0000 ....*T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:24.631766 IP 77.93.52.4 > 213.180.204.3: ICMP echo request, id 55338, seq 63104, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 feb9 0000 0101 97ea 4d5d 3404 d5b4 .@........M]4... 0x0020: cc03 0800 2954 d82a f680 0000 0000 0000 ....)T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:24.775333 IP 77.93.52.4 > 213.180.204.3: ICMP echo request, id 55338, seq 63360, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 febb 0000 0201 96e8 4d5d 3404 d5b4 .@........M]4... 0x0020: cc03 0800 2854 d82a f780 0000 0000 0000 ....(T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:24.918849 IP 77.93.52.4 > 213.180.204.3: ICMP echo request, id 55338, seq 63616, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 febf 0000 0301 95e4 4d5d 3404 d5b4 .@........M]4... 0x0020: cc03 0800 2754 d82a f880 0000 0000 0000 ....'T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:28.649027 IP 77.93.52.4 > 94.100.191.203: ICMP echo request, id 55594, seq 59520, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 ff44 0000 0101 1ae8 4d5d 3404 5e64 .@.D......M]4.^d 0x0020: bfcb 0800 3654 d92a e880 0000 0000 0000 ....6T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:28.749496 IP 77.93.52.4 > 94.100.191.203: ICMP echo request, id 55594, seq 59776, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 ff4b 0000 0201 19e1 4d5d 3404 5e64 .@.K......M]4.^d 0x0020: bfcb 0800 3554 d92a e980 0000 0000 0000 ....5T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:28.850068 IP 77.93.52.4 > 94.100.191.203: ICMP echo request, id 55594, seq 60032, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 ff4f 0000 0301 18dd 4d5d 3404 5e64 .@.O......M]4.^d 0x0020: bfcb 0800 3454 d92a ea80 0000 0000 0000 ....4T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:28.950591 IP 77.93.52.4 > 94.100.191.203: ICMP echo request, id 55594, seq 60288, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 ff55 0000 0401 17d7 4d5d 3404 5e64 .@.U......M]4.^d 0x0020: bfcb 0800 3354 d92a eb80 0000 0000 0000 ....3T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:29.051139 IP 77.93.52.4 > 94.100.191.203: ICMP echo request, id 55594, seq 60544, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 ff58 0000 0501 16d4 4d5d 3404 5e64 .@.X......M]4.^d 0x0020: bfcb 0800 3254 d92a ec80 0000 0000 0000 ....2T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:29.082387 IP 94.100.191.203 > 77.93.52.4: ICMP echo reply, id 55594, seq 60544, length 44 0x0000: 001c c0c8 5a4e 0015 17bc 8cb2 0800 4500 ....ZN........E. 0x0010: 0040 f9d0 0000 3a01 e75b 5e64 bfcb 4d5d .@....:..[^d..M] 0x0020: 3404 0000 3a54 d92a ec80 0000 0000 0000 4...:T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:29.151650 IP 77.93.52.4 > 94.100.191.203: ICMP echo request, id 55594, seq 60800, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 ff61 0000 0601 15cb 4d5d 3404 5e64 .@.a......M]4.^d 0x0020: bfcb 0800 3154 d92a ed80 0000 0000 0000 ....1T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:29.182947 IP 94.100.191.203 > 77.93.52.4: ICMP echo reply, id 55594, seq 60800, length 44 0x0000: 001c c0c8 5a4e 0015 17bc 8cb2 0800 4500 ....ZN........E. 0x0010: 0040 f9d1 0000 3a01 e75a 5e64 bfcb 4d5d .@....:..Z^d..M] 0x0020: 3404 0000 3954 d92a ed80 0000 0000 0000 4...9T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:29.319164 IP 77.93.52.4 > 94.100.191.203: ICMP echo request, id 55594, seq 61056, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 ff64 0000 0101 1ac8 4d5d 3404 5e64 .@.d......M]4.^d 0x0020: bfcb 0800 3054 d92a ee80 0000 0000 0000 ....0T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:29.486285 IP 77.93.52.4 > 94.100.191.203: ICMP echo request, id 55594, seq 61312, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 ff6d 0000 0201 19bf 4d5d 3404 5e64 .@.m......M]4.^d 0x0020: bfcb 0800 2f54 d92a ef80 0000 0000 0000 ..../T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:29.653592 IP 77.93.52.4 > 94.100.191.203: ICMP echo request, id 55594, seq 61568, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 ff7a 0000 0301 18b2 4d5d 3404 5e64 .@.z......M]4.^d 0x0020: bfcb 0800 2e54 d92a f080 0000 0000 0000 .....T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:29.820990 IP 77.93.52.4 > 94.100.191.203: ICMP echo request, id 55594, seq 61824, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 ff86 0000 0401 17a6 4d5d 3404 5e64 .@........M]4.^d 0x0020: bfcb 0800 2d54 d92a f180 0000 0000 0000 ....-T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:29.988234 IP 77.93.52.4 > 94.100.191.203: ICMP echo request, id 55594, seq 62080, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 ff94 0000 0501 1698 4d5d 3404 5e64 .@........M]4.^d 0x0020: bfcb 0800 2c54 d92a f280 0000 0000 0000 ....,T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:30.018923 IP 94.100.191.203 > 77.93.52.4: ICMP echo reply, id 55594, seq 62080, length 44 0x0000: 001c c0c8 5a4e 0015 17bc 8cb2 0800 4500 ....ZN........E. 0x0010: 0040 f9d2 0000 3a01 e759 5e64 bfcb 4d5d .@....:..Y^d..M] 0x0020: 3404 0000 3454 d92a f280 0000 0000 0000 4...4T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:30.020145 IP 77.93.52.4 > 94.100.191.203: ICMP echo request, id 55594, seq 62336, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 ff96 0000 0101 1a96 4d5d 3404 5e64 .@........M]4.^d 0x0020: bfcb 0800 2b54 d92a f380 0000 0000 0000 ....+T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:30.220915 IP 77.93.52.4 > 94.100.191.203: ICMP echo request, id 55594, seq 62592, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 ff99 0000 0201 1993 4d5d 3404 5e64 .@........M]4.^d 0x0020: bfcb 0800 2a54 d92a f480 0000 0000 0000 ....*T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:30.421681 IP 77.93.52.4 > 94.100.191.203: ICMP echo request, id 55594, seq 62848, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 ff9c 0000 0301 1890 4d5d 3404 5e64 .@........M]4.^d 0x0020: bfcb 0800 2954 d92a f580 0000 0000 0000 ....)T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:30.622383 IP 77.93.52.4 > 94.100.191.203: ICMP echo request, id 55594, seq 63104, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 ffa2 0000 0401 178a 4d5d 3404 5e64 .@........M]4.^d 0x0020: bfcb 0800 2854 d92a f680 0000 0000 0000 ....(T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:30.823029 IP 77.93.52.4 > 94.100.191.203: ICMP echo request, id 55594, seq 63360, length 44 0x0000: 0015 17bc 8cb2 001c c0c8 5a4e 0800 4500 ..........ZN..E. 0x0010: 0040 ffa8 0000 0501 1684 4d5d 3404 5e64 .@........M]4.^d 0x0020: bfcb 0800 2754 d92a f780 0000 0000 0000 ....'T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. 13:15:30.855245 IP 94.100.191.203 > 77.93.52.4: ICMP echo reply, id 55594, seq 63360, length 44 0x0000: 001c c0c8 5a4e 0015 17bc 8cb2 0800 4500 ....ZN........E. 0x0010: 0040 f9d3 0000 3a01 e758 5e64 bfcb 4d5d .@....:..X^d..M] 0x0020: 3404 0000 2f54 d92a f780 0000 0000 0000 4.../T.*........ 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0x0040: 0000 0000 0000 0000 0000 0000 0000 .............. I have next firewall rules 27256 837110393 768523132480 nat 101 ip from any to 77.93.52.4 in recv vlan407 27490 839235989 768673636925 allow ip from any to any in recv vlan407 27499 0 0 deny log ip from any to any via vlan407 27499 0 0 skipto 65000 ip from any to any 27756 354470115 133051085278 nat 101 ip from 192.168.0.0/16 to any out xmit vlan407 27890 999734221 872518576234 allow ip from any to any out xmit vlan407 27899 0 0 deny log ip from any to any via vlan407 ipfw nat 101 config ip 77.93.52.4 unreg_only reset when I delete these rules and add ipfw add 1 allow all from any to any mtr works fine without any problem. when configure NAT to divert packet to natd. mtr also works fine. >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted: