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([2604:3d09:2a80:110b:3d94:f55a:def8:17c2]) by smtp.gmail.com with ESMTPSA id b4-20020a170903228400b00178b77b7e71sm3754390plh.188.2022.11.06.18.48.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 06 Nov 2022 18:48:27 -0800 (PST) Message-ID: <2ca5c7d6-6e10-8b1a-f602-e2c3743e8554@gmail.com> Date: Sun, 6 Nov 2022 19:48:26 -0700 List-Id: User questions List-Archive: https://lists.freebsd.org/archives/freebsd-questions List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-questions@freebsd.org X-BeenThere: freebsd-questions@freebsd.org MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.13.1 Subject: Re: --solved-- ; well , mostly ; was: my isp has trouble with its own dhcp assignment Content-Language: en-US To: emailrob@emailrob.com, questions@freebsd.org References: <184d5515-80af-50b3-593e-6bc379b441df@risebroadband.net> <64f6a7dd-5c99-1c07-8b4f-27a3f2ecc9af@holgerdanske.com> <95dab92e-1f3f-065f-577d-c8ab21dcd577@holgerdanske.com> <4257bca2-f07a-a29b-847a-b3ba07a7cb8b@risebroadband.net> From: Dennis Radford In-Reply-To: <4257bca2-f07a-a29b-847a-b3ba07a7cb8b@risebroadband.net> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 4N5FzL5h8qz49St X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20210112 header.b=C4zgmctf; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of denradford@gmail.com designates 2607:f8b0:4864:20::52d as permitted sender) smtp.mailfrom=denradford@gmail.com X-Spamd-Result: default: False [-3.81 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-0.999]; NEURAL_HAM_SHORT(-0.81)[-0.811]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36:c]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20210112]; MIME_GOOD(-0.10)[text/plain]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[questions@freebsd.org]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; TO_MATCH_ENVRCPT_SOME(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::52d:from]; RCVD_COUNT_THREE(0.00)[3]; TO_DN_NONE(0.00)[]; FREEMAIL_FROM(0.00)[gmail.com]; RCVD_TLS_LAST(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; FROM_EQ_ENVFROM(0.00)[]; RCPT_COUNT_TWO(0.00)[2]; FREEMAIL_ENVFROM(0.00)[gmail.com]; MIME_TRACE(0.00)[0:+]; MLMMJ_DEST(0.00)[questions@freebsd.org] X-ThisMailContainsUnwantedMimeParts: N On 11/6/2022 7:01 PM, spellberg_robert wrote: > 22_nov_06_sun 25.55.utc > > > never_the_less , i --do-- have a question . > >     is there some kind of security issue w/ nic mac_addresses ? > > i have been trying to imagine one . > if so , then i suspect that >   it relates to activities , which i do not do . > this would explain my lack of imagination . > i do not do lap_tops [ hardware configuration is nearly impossible ] ; >   i do not do wi_fi [ eavesdropping ] ; >   i do not do windows [ now , really ; do you have to ask why ? ] . > please note that >   i am not against these things , for those who wish them ; >   different peoples have different ways . > i have programmed ms_dos ; i have used ms_win ; >   i have considered lt/wf ; these are not for me . > make mine a dozen of a several_hundred_char_wide xterm . > > I've not personally heard of a security 'issue' with mac addresses. They are simply the 'addresses' used to communicate to the next layer down on the network stack. > > here is another one . > >     regard_less of the answer to the above question , >       do other isps do this [ check the mac_addr ] ? > I suspect most do. Maintaining a database of approved and active modem/gateway devices connecting to their network, associated with their respective customers. --Dennis