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([2001:470:6f:ca1:909f:8ef8:f85f:3f6b]) by smtp.gmail.com with ESMTPSA id d13sm24864196wrv.34.2020.03.30.23.41.32 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 30 Mar 2020 23:41:32 -0700 (PDT) Sender: Martin Beran From: Martin Beran Autocrypt: addr=martin@mber.cz; keydata= mQGiBDYCHO4RBAD4aFWG8EHeLDfhZkyckzCKFYyZo07TizigVa8wWMfPTAW4zVYWjiY8P7nG SwUn3an6Zz0xD0IkvNulXTFV89ekgSwSLjIzsZWtM4hq7k2OIXAxCXMinfMJxwAZJb4bQp6H XLMyH8ysSVSmh3J1k2NGQ4ngbbQxTc7yzka2RQuBJwCg/wgmon0wGE8mk3Tp5J+qpMSr7p8E ANMsguJ+sMmw4//TE6ruVHSb2qhYl+xevXMMKVvP4sI0PmwHLnetyVkXMLtrCk4KmbILaZ0G Q5KKCb3oIFdMmBpf4fDALoy/CBQW2oiNsY0S1gZedTFK2wm8e2uOPiKB2ZzEWnrls938y2Is Ub3HAf7l7StXtc89Am81chHh1e0xA/0VowtK/sEBiCXZfLjVwO5tRLQB6m0FkUiH/B9bzX38 w8WSfqk8Zr/4t35zbSADl952TZlASnUroCTeZ+/4loSblWv6cYakZBd/ZRgYg+DdjvPKjicu wtLYBJ9zljjycI7rB7XvFdTzNLgveT6Hw9IjvOmHpo0IgRpw8vBauvIPD7QdTWFydGluIEJl cmFuIDxtYXJ0aW5AbWJlci5jej6IfAQTEQIAPAIbAwYLCQgHAwIGFQgCCQoLBBYCAwECHgEC F4AWIQRCWkp1+eSrRBnU+MbW1LGVXmqTfAUCXEjtigIZAQAKCRDW1LGVXmqTfNOPAJ9C8APk H7lK5p551ueZCpeB0fSN+QCfQaAscyYTFGWUR/mxESPBZQ8jywa5Ag0ENgIc8RAIAPZCV7cI fwgXcqK61qlC8wXo+VMROU+28W65Szgg2gGnVqMU6Y9AVfPQB8bLQ6mUrfdMZIZJ+AyDvWXp F9Sh01D49Vlf3HZSTz09jdvOmeFXklnN/biudE/F/Ha8g8VHMGHOfMlm/xX5u/2RXscBqtNb no2gpXI61Brwv0YAWCvl9Ij9WE5J280gtJ3kkQc2azNsOA1FHQ98iLMcfFstjvbzySPAQ/Cl WxiNjrtVjLhdONM0/XwXV0OjHRhs3jMhLLUq/zzhsSlAGBGNfISnCnLWhsQDGcgHKXrKlQzZ lp+r0ApQmwJG0wg9ZqRdQZ+cfL2JSyIZJrqrol7DVekyCzsAAgIH/28CqxtThuI/Ha3ErJeU Jbimrt1RdODUfv2L3LEDonlqm81CtY2u5F8zq+7XrY4M7b07hykUxTBzinsv2mWXi2Pmdrmn lGwPLdT1vba0Rw6tomHihuulncu4U1GnFqn/7z5QkhtQm9w6Cn9SgpM/Xs5/c+Cm80+YrV+M AqnnYjxPWO2BSbAhjtZnQ2lYPxKkpuSBAZdQUhHEMlQ5xRyYRdltN36GYLiZgHQuEHe5xbvk QT8Qyse6dJlmcLvqXcOBbcF+cL2jv3XTosJO0fQF7uEZuV/ds1ZQrwyPYWibZMssF7A8XdEz kGE8R0vOaSsB3lr2DhG/OIH7tH2JFgMHxy+IPwMFGDYCHPHW1LGVXmqTfBECm9MAn10/6rJu fHaZoI3mMjoHDGnFXoDLAJ4nH/11sn4VTg4vooablHHjyqyDLA== To: freebsd-hackers@freebsd.org Subject: Permanent NDP entries overriden by ICMPv6 Neighbor Advertisement Message-ID: <66229645-df41-e964-9dd5-0dc4b1845a9b@mber.cz> Date: Tue, 31 Mar 2020 08:41:31 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 48s09P22zBz4YBZ X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=Nf5LId9C; dmarc=none; spf=pass (mx1.freebsd.org: domain of mber2015@gmail.com designates 2a00:1450:4864:20::431 as permitted sender) smtp.mailfrom=mber2015@gmail.com X-Spamd-Result: default: False [-4.59 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; RCVD_TLS_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; TO_DN_NONE(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; RCVD_COUNT_THREE(0.00)[3]; DMARC_NA(0.00)[mber.cz]; DKIM_TRACE(0.00)[gmail.com:+]; RCVD_IN_DNSWL_NONE(0.00)[1.3.4.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.5.4.1.0.0.a.2.list.dnswl.org : 127.0.5.0]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; IP_SCORE(-2.39)[ip: (-9.08), ipnet: 2a00:1450::/32(-2.37), asn: 15169(-0.45), country: US(-0.05)]; FORGED_SENDER(0.30)[martin@mber.cz,mber2015@gmail.com]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; FROM_NEQ_ENVFROM(0.00)[martin@mber.cz,mber2015@gmail.com]; MID_RHS_MATCH_FROM(0.00)[] X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 31 Mar 2020 06:41:56 -0000 Hi, when I set a permanent NDP entry by command ndp -s the record is denoted "permanent", by the specified MAC address is overriden by a received neighbor advisory for the same IP address, but with different MAC address. I tried this on FreeBSD 12.1-p2. Is this the intended behavior, or should a "permanent" entry be really permanent? -- Martin Beran