From owner-freebsd-net@freebsd.org Wed Jun 26 09:50:23 2019 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6498F15C25F5 for ; Wed, 26 Jun 2019 09:50:23 +0000 (UTC) (envelope-from bu7cher@yandex.ru) Received: from forward102j.mail.yandex.net (forward102j.mail.yandex.net [5.45.198.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 915759590C for ; Wed, 26 Jun 2019 09:50:21 +0000 (UTC) (envelope-from bu7cher@yandex.ru) Received: from mxback18g.mail.yandex.net (mxback18g.mail.yandex.net [IPv6:2a02:6b8:0:1472:2741:0:8b7:318]) by forward102j.mail.yandex.net (Yandex) with ESMTP id B723CF220C8; Wed, 26 Jun 2019 12:50:12 +0300 (MSK) Received: from smtp1o.mail.yandex.net (smtp1o.mail.yandex.net [2a02:6b8:0:1a2d::25]) by mxback18g.mail.yandex.net (nwsmtp/Yandex) with ESMTP id K9zRL02nKc-oCs4LqPP; Wed, 26 Jun 2019 12:50:12 +0300 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1561542612; bh=ffKw3z77lokeyABcLb2swNa47U2AlTssxLTqEn270cM=; h=In-Reply-To:From:To:Subject:Cc:Date:References:Message-ID; b=Y0iREr7keNwd9O96BnkqTCNYLcXB90C7cvHefjlahQE4PfKP6FacimhjGzc4G1ulM Ghn0bceU4HtymquDOYLPd5r8DlHuRMQeBDyYngZM/QtQIgr7ettKaSqW5lsHl18k/I cHEsjzt2kTtG5iuZFQbTy59KFnXAA6ls8mLWQbp0= Received: by smtp1o.mail.yandex.net (nwsmtp/Yandex) with ESMTPSA id 8MgzmQyUYY-oCgSj4lx; Wed, 26 Jun 2019 12:50:12 +0300 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (Client certificate not present) Subject: Re: IPFW NAT64 changed 11.2 --> 11.3? To: "Patrick M. Hausen" , FreeBSD Net Cc: mops@punkt.de References: <950200A8-6D36-46FE-B0DD-BA6EA860FEB7@punkt.de> From: "Andrey V. Elsukov" Openpgp: id=E6591E1B41DA1516F0C9BC0001C5EA0410C8A17A Autocrypt: addr=bu7cher@yandex.ru; prefer-encrypt=mutual; keydata= mQENBEwBF1kBCADB9sXFhBEUy8qQ4X63Y8eBatYMHGEFWN9ypS5lI3RE6qQW2EYbxNk7qUC5 21YIIS1mMFVBEfvR7J9uc7yaYgFCEb6Sce1RSO4ULN2mRKGHP3/Sl0ijZEjWHV91hY1YTHEF ZW/0GYinDf56sYpDDehaBF5wkWIo1+QK5nmj3vl0DIDCMNd7QEiWpyLVwECgLX2eOAXByT8B bCqVhJGcG6iFP7/B9Ll6uX5gb8thM9LM+ibwErDBVDGiOgvfxqidab7fdkh893IBCXa82H9N CNwnEtcgzh+BSKK5BgvPohFMgRwjti37TSxwLu63QejRGbZWSz3OK3jMOoF63tCgn7FvABEB AAG0JUFuZHJleSBWLiBFbHN1a292IDxidTdjaGVyQHlhbmRleC5ydT6JATgEEwECACIFAkwB F1kCGwMGCwkIBwMCBhUIAgkKCwQWAgMBAh4BAheAAAoJEAHF6gQQyKF6qmYIAI6ekfm1VA4T vqankI1ISE6ku4jV7UlpIQlEbE7/8n3Zd6teJ+pGOQhN5qk8QE7utdPdbktAzi+x7LIJVzUw 4TywZLXGrkP7VKYkfg6oyCGyzITghefQeJtr2TN4hYCkzPWpylkue8MtmqfZv/6royqwTbN+ +E09FQNvTgRUYJYTeQ1qOsxNRycwvw3dr2rOfuxShbzaHBB1pBIjGrMg8fC5pd65ACH5zuFV A0CoTNGMDrEZSfBkTW604UUHFFXeCoC3dwDZRKOWJ3GmMXns65Ai5YkA63BSHEE1Qle3VBhd cG1w0CB5FBV3pB27UVnf0jEbysrDqW4qN7XMRFSWNAy5AQ0ETAEXWQEIAJ2p6l9LBoqdH/0J PEFDY2t2gTvAuzz+8zs3R03dFuHcNbOwjvWCG0aOmVpAzkRa8egn5JB4sZaFUtKPYJEQ1Iu+ LUBwgvtXf4vWpzC67zs2dDuiW4LamH5p6xkTD61aHR7mCB3bg2TUjrDWn2Jt44cvoYxj3dz4 S49U1rc9ZPgD5axCNv45j72tggWlZvpefThP7xT1OlNTUqye2gAwQravXpZkl5JG4eOqJVIU X316iE3qso0iXRUtO7OseBf0PiVmk+wCahdreHOeOxK5jMhYkPKVn7z1sZiB7W2H2TojbmcK HZC22sz7Z/H36Lhg1+/RCnGzdEcjGc8oFHXHCxUAEQEAAYkBHwQYAQIACQUCTAEXWQIbDAAK CRABxeoEEMihegkYCAC3ivGYNe2taNm/4Nx5GPdzuaAJGKWksV+w9mo7dQvU+NmI2az5w8vw 98OmX7G0OV9snxMW+6cyNqBrVFTu33VVNzz9pnqNCHxGvj5dL5ltP160JV2zw2bUwJBYsgYQ WfyJJIM7l3gv5ZS3DGqaGIm9gOK1ANxfrR5PgPzvI9VxDhlr2juEVMZYAqPLEJe+SSxbwLoz BcFCNdDAyXcaAzXsx/E02YWm1hIWNRxanAe7Vlg7OL+gvLpdtrYCMg28PNqKNyrQ87LQ49O9 50IIZDOtNFeR0FGucjcLPdS9PiEqCoH7/waJxWp6ydJ+g4OYRBYNM0EmMgy1N85JJrV1mi5i Message-ID: <71dacccb-2500-6d7e-c890-2733d15fbbe5@yandex.ru> Date: Wed, 26 Jun 2019 12:47:31 +0300 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <950200A8-6D36-46FE-B0DD-BA6EA860FEB7@punkt.de> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="1YD3tFUMsfliSOSZGK3svU5l6XBtnKkPA" X-Rspamd-Queue-Id: 915759590C X-Spamd-Bar: ------- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=yandex.ru header.s=mail header.b=Y0iREr7k; dmarc=pass (policy=none) header.from=yandex.ru; spf=pass (mx1.freebsd.org: domain of bu7cher@yandex.ru designates 5.45.198.243 as permitted sender) smtp.mailfrom=bu7cher@yandex.ru X-Spamd-Result: default: False [-7.94 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:5.45.192.0/19]; FREEMAIL_FROM(0.00)[yandex.ru]; HAS_ATTACHMENT(0.00)[]; RCVD_COUNT_THREE(0.00)[4]; DKIM_TRACE(0.00)[yandex.ru:+]; MX_GOOD(-0.01)[mx.yandex.ru,mx.yandex.ru,mx.yandex.ru,mx.yandex.ru,mx.yandex.ru]; DMARC_POLICY_ALLOW(-0.50)[yandex.ru,none]; NEURAL_HAM_SHORT(-0.99)[-0.995,0]; SIGNED_PGP(-2.00)[]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:+]; SUBJECT_ENDS_QUESTION(1.00)[]; FREEMAIL_ENVFROM(0.00)[yandex.ru]; ASN(0.00)[asn:13238, ipnet:5.45.192.0/18, country:RU]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_IN_DNSWL_LOW(-0.10)[243.198.45.5.list.dnswl.org : 127.0.5.1]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; R_DKIM_ALLOW(-0.20)[yandex.ru:s=mail]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.20)[multipart/signed,multipart/mixed,text/plain]; RCVD_TLS_LAST(0.00)[]; DWL_DNSWL_LOW(-1.00)[yandex.ru.dwl.dnswl.org : 127.0.5.1]; TO_MATCH_ENVRCPT_SOME(0.00)[]; IP_SCORE(-1.73)[ipnet: 5.45.192.0/18(-4.92), asn: 13238(-3.76), country: RU(0.01)] X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jun 2019 09:50:23 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --1YD3tFUMsfliSOSZGK3svU5l6XBtnKkPA Content-Type: multipart/mixed; boundary="aVGhQI4P7SmfBO1YiiX2PbMGHevZcXrtj"; protected-headers="v1" From: "Andrey V. Elsukov" To: "Patrick M. Hausen" , FreeBSD Net Cc: mops@punkt.de Message-ID: <71dacccb-2500-6d7e-c890-2733d15fbbe5@yandex.ru> Subject: Re: IPFW NAT64 changed 11.2 --> 11.3? References: <950200A8-6D36-46FE-B0DD-BA6EA860FEB7@punkt.de> In-Reply-To: <950200A8-6D36-46FE-B0DD-BA6EA860FEB7@punkt.de> --aVGhQI4P7SmfBO1YiiX2PbMGHevZcXrtj Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 26.06.2019 11:05, Patrick M. Hausen wrote: > Hi all, >=20 > we have a bit of a problem with some new servers that > use NAT64 to access certain services that offer only > legacy IP - like github. >=20 > As far as I found the respective NAT64 gateways (in jails > with VNET) are configured identically except for the > particular addresses, of course. >=20 > Yet, 11.2 works, 11.3-RC1 doesn=E2=80=99t> Any hints welcome. Check the output of the following commands on both translators: # sysctl net.inet.ip.fw | grep nat64 # ipfw nat64lsn all list # ipfw nat64lsn NAT64 stats # ipfw nat64lsn NAT64 config log # ifconfig ipfwlog0 create # tcpdump -nvi ipfwlog0 Check the counters of rules with nat64lsn action, probably you use netisr output (default mode) and have traffic loops, i.e. a packet captured by NAT64 instance several times. Your rules looks like direct output is preferable for you (try to set net.inet.ip.fw.nat64_direct_output=3D1). --=20 WBR, Andrey V. Elsukov --aVGhQI4P7SmfBO1YiiX2PbMGHevZcXrtj-- --1YD3tFUMsfliSOSZGK3svU5l6XBtnKkPA Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Comment: Using GnuPG with Thunderbird - https://www.enigmail.net/ iQEzBAEBCAAdFiEE5lkeG0HaFRbwybwAAcXqBBDIoXoFAl0TPzMACgkQAcXqBBDI oXqrNggAuiyQTuhI4S9jYO2tH2AEMjqs6LYVssnelPyi/dxbuCkvn/GvXn8y+nEN Vo2ArYzXsn60UtnEnwcrK4jnyVRRcVQ2/GyFcBY7QV0EO5zT2GkNIJgWrD78pwU1 LO7cJ48jL/Pi8Ux4ZajQ23NCIOS5p+Q8XH38qEGUZ/nsOBLXQqSMKjvdjHp6TsTm 3y0AwxTNJfnO/0Fyti825sgRwvvZmSLs8ScGkOcfNsXeKMeMMve4DS9Msv425Bp2 3aZriGU7MLO4k/QdjhiZsrsC2JktJXtT7N+YSBpSlJ1aH3Ri8UP4lJJ+ctNi6Ss/ AwdhuWnakurbqRcOrwoN2gCDxpEAsg== =xWDO -----END PGP SIGNATURE----- --1YD3tFUMsfliSOSZGK3svU5l6XBtnKkPA--