From owner-freebsd-net@freebsd.org Tue Dec 18 07:42:43 2018 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 B69051344121 for ; Tue, 18 Dec 2018 07:42:43 +0000 (UTC) (envelope-from bu7cher@yandex.ru) Received: from forward101j.mail.yandex.net (forward101j.mail.yandex.net [IPv6:2a02:6b8:0:801:2::101]) (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 55E1184955; Tue, 18 Dec 2018 07:42:41 +0000 (UTC) (envelope-from bu7cher@yandex.ru) Received: from mxback10o.mail.yandex.net (mxback10o.mail.yandex.net [IPv6:2a02:6b8:0:1a2d::24]) by forward101j.mail.yandex.net (Yandex) with ESMTP id 866B92E80D69; Tue, 18 Dec 2018 10:42:39 +0300 (MSK) Received: from smtp4o.mail.yandex.net (smtp4o.mail.yandex.net [2a02:6b8:0:1a2d::28]) by mxback10o.mail.yandex.net (nwsmtp/Yandex) with ESMTP id K92NftWGZk-gbHOHQkN; Tue, 18 Dec 2018 10:42:37 +0300 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1545118957; bh=/4g/CHmVG9Hos+EHXorSFQ//oAsD6VX6P9kYNlY2++c=; h=Subject:To:Cc:References:From:Message-ID:Date:In-Reply-To; b=Kh0PL1iqOLHKrf113NBCLRMbiNpyQUDitBXcrNRFGRyGs2a8q/KRQqFwv8la7a0JL AWGIIN2l+Lu4w0dl8k2vARAU+Tss90UYLKEqfL0rky60e8Hx1Trjvg5zqzyQW4+TzP LI8CbKAgcWHkte2eMcjdUt5U7/eau7OA/f/X5Mgs= Received: by smtp4o.mail.yandex.net (nwsmtp/Yandex) with ESMTPSA id 5tVqUU10uU-gZgOX2FP; Tue, 18 Dec 2018 10:42:36 +0300 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client certificate not present) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1545118956; bh=/4g/CHmVG9Hos+EHXorSFQ//oAsD6VX6P9kYNlY2++c=; h=Subject:To:Cc:References:From:Message-ID:Date:In-Reply-To; b=pi1C48+2Wvcqc3+osXPmbFCK3Yqj+DqWVpmI255YMSnvp4ELiKVgxzCbOckRlM5HQ jfA6aqn9ph/7Mj+AAaSUnrcqUjxpB2fDguoBgBX4007yskf0kaHG3GdlVa7R9V3QRW 7pYpdxWD/HAtbQnyTPcMLN8i2foxI60udEhASycg= Subject: Re: RFC 5549? To: Donald Sharp , Renato Westphal , Vivek Venkatraman Cc: freebsd-net@freebsd.org, =?UTF-8?Q?Olivier_Cochard-Labb=c3=a9?= , gnn@freebsd.org References: <45cb71a0-8135-30e2-6096-784c4fc44fea@yandex.ru> 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: <564e7c7a-a3a2-200a-04a4-f9b23a24cfe9@yandex.ru> Date: Tue, 18 Dec 2018 10:39:56 +0300 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:60.0) Gecko/20100101 Thunderbird/60.3.3 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="kmHC07MevWXQaYZmrHy86I0vOGd32oYnO" X-Rspamd-Queue-Id: 55E1184955 X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org; dkim=pass header.d=yandex.ru header.s=mail header.b=Kh0PL1iq; dkim=pass header.d=yandex.ru header.s=mail header.b=pi1C48+2; dmarc=pass (policy=none) header.from=yandex.ru; spf=pass (mx1.freebsd.org: domain of bu7cher@yandex.ru designates 2a02:6b8:0:801:2::101 as permitted sender) smtp.mailfrom=bu7cher@yandex.ru X-Spamd-Result: default: False [-6.23 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a02:6b8:0::/52]; FREEMAIL_FROM(0.00)[yandex.ru]; HAS_ATTACHMENT(0.00)[]; RCPT_COUNT_FIVE(0.00)[6]; RCVD_COUNT_THREE(0.00)[4]; MX_GOOD(-0.01)[cached: mx.yandex.ru]; DKIM_TRACE(0.00)[yandex.ru:+]; DMARC_POLICY_ALLOW(-0.50)[yandex.ru,none]; SUBJ_ALL_CAPS(0.68)[9]; SIGNED_PGP(-2.00)[]; NEURAL_HAM_SHORT(-0.96)[-0.961,0]; RCVD_IN_DNSWL_LOW(-0.10)[1.0.1.0.0.0.0.0.0.0.0.0.2.0.0.0.1.0.8.0.0.0.0.0.8.b.6.0.2.0.a.2.list.dnswl.org : 127.0.5.1]; MIME_TRACE(0.00)[0:+,1:+,2:+]; SUBJECT_ENDS_QUESTION(1.00)[]; FREEMAIL_ENVFROM(0.00)[yandex.ru]; ASN(0.00)[asn:13238, ipnet:2a02:6b8::/32, country:RU]; MID_RHS_MATCH_FROM(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; 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)[]; DWL_DNSWL_NONE(0.00)[yandex.ru.dwl.dnswl.org : 127.0.5.0]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.20)[multipart/signed,multipart/mixed,text/plain]; RCVD_TLS_LAST(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; IP_SCORE(-1.74)[ipnet: 2a02:6b8::/32(-4.83), asn: 13238(-3.86), country: RU(0.00)] 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: Tue, 18 Dec 2018 07:42:44 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --kmHC07MevWXQaYZmrHy86I0vOGd32oYnO Content-Type: multipart/mixed; boundary="QIAO47rDBxi3ByImJx2mLEfKma55JGlBc"; protected-headers="v1" From: "Andrey V. Elsukov" To: Donald Sharp , Renato Westphal , Vivek Venkatraman Cc: freebsd-net@freebsd.org, =?UTF-8?Q?Olivier_Cochard-Labb=c3=a9?= , gnn@freebsd.org Message-ID: <564e7c7a-a3a2-200a-04a4-f9b23a24cfe9@yandex.ru> Subject: Re: RFC 5549? References: <45cb71a0-8135-30e2-6096-784c4fc44fea@yandex.ru> In-Reply-To: --QIAO47rDBxi3ByImJx2mLEfKma55JGlBc Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 18.12.2018 00:43, Donald Sharp wrote: > I took the code, compiled at and got FRR working with the v6 nexthop. > https://github.com/FRRouting/frr/pull/3502. Route installation from > FRR appears to be working for me now: >=20 > Janelle# show ip route > Codes: K - kernel route, C - connected, S - static, R - RIP, > O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP, > T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP, > F - PBR, f - OpenFabric, > > - selected route, * - FIB route >=20 > K>* 0.0.0.0/0 [0/0] via 10.50.12.1, em0, 00:13:13 > B>* 10.50.11.0/24 [20/0] via fe80::a00:27ff:fe28:3b50, em1, 00:13:09 > C>* 10.50.12.0/24 is directly connected, em0, 00:13:13 > B>* 10.232.0.16/32 [20/0] via fe80::a00:27ff:fe28:3b50, em1, 00:13:09 > B>* 192.168.209.0/24 [20/0] via fe80::a00:27ff:fe28:3b50, em1, 00:13:09= > B>* 192.168.230.0/24 [20/0] via fe80::a00:27ff:fe28:3b50, em1, 00:13:09= > B>* 192.168.231.0/24 [20/0] via fe80::a00:27ff:fe28:3b50, em1, 00:13:09= > Janelle# exit > sharpd@Janelle ~/frr> netstat -rn > Routing tables >=20 > Internet: > Destination Gateway Flags Netif Expire > default 10.50.12.1 UGS em0 > 10.50.11.0/24 fe80::a00:27ff:fe28:3b50%em1 UG1 em1 > 10.50.12.0/24 link#1 U em0 > 10.50.12.121 link#1 UHS lo0 > 10.232.0.16 fe80::a00:27ff:fe28:3b50%em1 UGH1 em1 > 127.0.0.1 link#4 UH lo0 > 192.168.209.0/24 fe80::a00:27ff:fe28:3b50%em1 UG1 em1 > 192.168.230.0/24 fe80::a00:27ff:fe28:3b50%em1 UG1 em1 > 192.168.231.0/24 fe80::a00:27ff:fe28:3b50%em1 UG1 em1 >=20 > On the other hand, ping doesn't appear to be working( but I think you > probably knew that): > sharpd@Janelle ~/frr> sudo tcpdump -i em1 icmp > tcpdump: verbose output suppressed, use -v or -vv for full protocol dec= ode > listening on em1, link-type EN10MB (Ethernet), capture size 262144 byte= s > 11:41:59.559457 IP 0.0.0.0 > 192.168.230.1: ICMP echo request, id > 2119, seq 27, length 64 > 11:42:00.626966 IP 0.0.0.0 > 192.168.230.1: ICMP echo request, id > 2119, seq 28, length 64 > 11:42:01.659515 IP 0.0.0.0 > 192.168.230.1: ICMP echo request, id > 2119, seq 29, length 64 > 11:42:02.732074 IP 0.0.0.0 > 192.168.230.1: ICMP echo request, id > 2119, seq 30, length 64 > 11:42:03.759432 IP 0.0.0.0 > 192.168.230.1: ICMP echo request, id > 2119, seq 31, length 64 > 11:42:04.833242 IP 0.0.0.0 > 192.168.230.1: ICMP echo request, id > 2119, seq 32, length 64 > 11:42:05.859559 IP 0.0.0.0 > 192.168.230.1: ICMP echo request, id > 2119, seq 33, length 64 > ^C > 7 packets captured > 21 packets received by filter > 0 packets dropped by kernel >=20 > This is pretty awesome progress though Hi, I think this happens when you try to ping from the router via interface without IPv4 address. In this case rip_output() fills only destination address in hope that ip_output() will fill source address. But since there are no IPv4 addresses on the interface, in the line https://svnweb.freebsd.org/base/head/sys/netinet/ip_output.c?annotate=3D3= 39219#l452 it uses some zero filled word as source address. Probably, we can just drop the packet, when gw->af_family =3D=3D AF_INET6= and ip_src =3D=3D INADDR_ANY. Also we can do some sort of source address selection, but this variant needs more code :) I think generic forwarding should work, when you use router only as transit point. --=20 WBR, Andrey V. Elsukov --QIAO47rDBxi3ByImJx2mLEfKma55JGlBc-- --kmHC07MevWXQaYZmrHy86I0vOGd32oYnO 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/ iQEzBAEBCAAdFiEE5lkeG0HaFRbwybwAAcXqBBDIoXoFAlwYpEwACgkQAcXqBBDI oXp6cwf/RAPenQUg3D/IyoyD2FdtEkR9Lh1ZwewO+3m+ieBsz66LQ7QdlJ9vgdTq WUh024g5xKxLn9blx+5ExTsDVF+POsKhbnt2U64Eh+3ixiQ6XWsnzvw3Q3vD3hAK rM+vbiNauFaEwwK1Pl7/hRPn/iM6a71yGLEussGY2LOQ6TqgpIkghNFziDo1n/TK voWA5fMlEZKBDIzyHgsRJpU70J136TzOPff9To55BRA8d7c308MCt1Eh+dLh+PAY wIX/gekmZ8I4GtcYYJIWALw3JZlYP19tZj6GO1KnBybw3TiaP1Xo0I/LpR5sk81S H7jx5GfWW7jsYJ98mySVvn8zXKwHYQ== =5fpJ -----END PGP SIGNATURE----- --kmHC07MevWXQaYZmrHy86I0vOGd32oYnO--