From nobody Fri Jun 14 15:20:09 2024 X-Original-To: freebsd-net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4W12yt4VXfz5P2Wg for ; Fri, 14 Jun 2024 15:20:22 +0000 (UTC) (envelope-from zarychtam@plan-b.pwste.edu.pl) Received: from plan-b.pwste.edu.pl (plan-b.pwste.edu.pl [IPv6:2001:678:618::40]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "plan-b.pwste.edu.pl", Issuer "GEANT OV RSA CA 4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4W12yt2F0Sz4j8t for ; Fri, 14 Jun 2024 15:20:22 +0000 (UTC) (envelope-from zarychtam@plan-b.pwste.edu.pl) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=plan-b.pwste.edu.pl header.s=plan-b-mailer header.b="bXo6e/b/"; dmarc=pass (policy=quarantine) header.from=plan-b.pwste.edu.pl; 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boundary="------------Sn4vvhXEe0g82V409dVk0uNm" Message-ID: Date: Fri, 14 Jun 2024 17:20:09 +0200 List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Discarding inbound ICMP REDIRECT by default To: Ed Maste Cc: freebsd-net@freebsd.org References: Content-Language: en-US From: Marek Zarychta Autocrypt: addr=zarychtam@plan-b.pwste.edu.pl; keydata= xsBNBFfi3cMBCADLecMTFXad4uDXqv3eRuB4qJJ8G9tzzFezeRnnwxOsPdytW5ES2z1ibSrR IsiImx6+PTqrAmXpTInxAi7yiZGdSiONRI4CCxKY9d1YFiNYT/2WyNXCekm9x29YeIU7x0JB Llbz0f/9HC+styBIu2H+PY/X98Clzm110CS+n/b9l1AtiGxTiVFj7/uavYAKxH6LNWnbkuc5 v8EVNc7NkEcl5h7Z9X5NEtzDxTOiBIFQ/kOT7LAtkYUPo1lqLeOM2DtWSXTXQgXl0zJI4iP1 OAu4qQYm2nXwq4b2AH9peknelvnt1mpfgDCGSKnhc26q6ibTfMwydp+tvUtQIQYpA6b9ABEB AAHNN01hcmVrIFphcnljaHRhIChQbGFuLWIpIDx6YXJ5Y2h0YW1AcGxhbi1iLnB3c3RlLmVk dS5wbD7CwHcEEwEIACEFAlfi4LkCGwMFCwkIBwIGFQgJCgsCBBYCAwECHgECF4AACgkQHZW8 vIFppoJXdgf8D9X3VRFSNaR9lthSx/+uqas17J3FJKBo1xMQsC2a+44vzNvYJSuPGLLJ+LW2 HPVazjP/BWZJbxOYpliY4zxNRU0YCp0BLIVLibc//yax+mE42FND/+NiIZhqJscl6MLPrSwo sIwXec4XYkldkyqW/xBbBYXoIkBqdKB9j5j42Npy1IV/RizOSdmvTWY27ir8e/yGMR1RLr4F 8P5K3OWTdlGy2H2F/3J8bIPBLG6FpaIyLQw4dHSx8V02PYqDxK1cNo2kAOnU8PnZL/AGuMOH iv3MN1VYL8ehcmpBBsrZGebQJxrjY2/5IaTSgp9xHYT70kshuU6Qb97vk1mOjNZxgc7ATQRX 4t3DAQgA10h6RCXuBLMHxq5B8X/ZIlj9sgLoeyfRdDZEc9rT2KUeUJVHDsbvOFf4/7F1ovWY hJbA6GK/LUZeHHTjnbZcH1uDYQeHly4UOLxeEvhGoz4JhS2C7JzN/uRnwbdOAUbJr8rUj/IY a7gk906rktsc/Ldrxrxh7O6WO0JCh2XO/p4pDfEwwB37g4xHprSab28ECYJ9JMbtA8Sy4M55 g3+GQ28FvSlGnx48OoGXU2BZdc1vZKSQmNOlikB+9/hDX8zdYWVfDaX1TLQ8Ib4+xTUmapza mV/bxIsaZRBw+jFjLQHhTbIMfPEU+4mxFDvTdbKPruKPqVf1ydgMnPZWngowdwARAQABwsBf BBgBCAAJBQJX4t3DAhsMAAoJEB2VvLyBaaaC6qkIAJs9sDPqrqW0bYoRfzY6XjDWQ59p9tJi v8aogxacQNCfAu+WkJ8PNVUtC1dlVcG5NnZ80gXzd1rc8ueIvXlvdanUt/jZd8jbb3gaDbK3 wh1yMCGBl/1fOJTyEGYv1CRojv97KK89KP5+r8x1P1iHcSrunlDNqGxTMydNCwBH23QcOM+m u4spKnJ/s0VRBkw3xoKBZfZza6fTQ4gTpAipjyk7ldOGBV+PvkKATdhK2yLwuWXhKbg/GRlD 1r5P0gxzSqfV4My+KJuc2EDcrqp1y0wOpE1m9iZqCcd0fup5f7HDsYlLWshr7NQl28f6+fQb sylq/j672BHXsdeqf/Ip9V4= In-Reply-To: X-Spamd-Bar: --- X-Spamd-Result: default: False [-3.88 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.99)[-0.992]; DMARC_POLICY_ALLOW(-0.50)[plan-b.pwste.edu.pl,quarantine]; R_SPF_ALLOW(-0.20)[+mx:c]; R_DKIM_ALLOW(-0.20)[plan-b.pwste.edu.pl:s=plan-b-mailer]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; ONCE_RECEIVED(0.10)[]; XM_UA_NO_VERSION(0.01)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCVD_COUNT_ONE(0.00)[1]; ARC_NA(0.00)[]; ASN(0.00)[asn:206006, ipnet:2001:678:618::/48, country:PL]; TO_DN_SOME(0.00)[]; RCVD_TLS_ALL(0.00)[]; RCPT_COUNT_TWO(0.00)[2]; MLMMJ_DEST(0.00)[freebsd-net@freebsd.org]; HAS_XAW(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; DKIM_TRACE(0.00)[plan-b.pwste.edu.pl:+] X-Rspamd-Queue-Id: 4W12yt2F0Sz4j8t This is a multi-part message in MIME format. --------------Sn4vvhXEe0g82V409dVk0uNm Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit W dniu 8.05.2024 o 21:14, Ed Maste pisze: > It may make sense to apply the same default change for IPv6, but I > don't think we need to tie the two discussions / investigations > together. IMHO it is important to link ICMP6 with ICMP in terms of ICMP redirection. I have the impression that we are neglecting the IPv6 field again and this is our common sin. -- Marek Zarychta --------------Sn4vvhXEe0g82V409dVk0uNm Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit
W dniu 8.05.2024 o 21:14, Ed Maste pisze:
It may make sense to apply the same default change for IPv6, but I
don't think we need to tie the two discussions / investigations
together.

IMHO it is important to link ICMP6 with ICMP in terms of ICMP redirection. I have the impression that we are neglecting the IPv6 field again and this is our common sin.

-- 
Marek Zarychta
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