Received: from PCH.mit.edu (18.7.21.50) by mail.efplus.com (192.168.0.8) with Microsoft SMTP Server (TLS) id 8.3.485.1; Mon, 23 Aug 2021 03:46:51 -0700 Received: from PCH.MIT.EDU (localhost.localdomain [127.0.0.1]) by PCH.mit.edu (8.14.7/8.12.8) with ESMTP id 17NAaBIV000842; Mon, 23 Aug 2021 06:37:06 -0400 Received: from outgoing-exchange-5.mit.edu (OUTGOING-EXCHANGE-5.MIT.EDU [18.9.28.59]) by PCH.mit.edu (8.14.7/8.12.8) with ESMTP id 17JMQfD2000429 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Thu, 19 Aug 2021 18:26:41 -0400 Received: from w92exedge3.exchange.mit.edu (W92EXEDGE3.EXCHANGE.MIT.EDU [18.7.73.15]) by outgoing-exchange-5.mit.edu (8.14.7/8.12.4) with ESMTP id 17JMQeha029213 for ; Thu, 19 Aug 2021 18:26:41 -0400 Received: from w92expo30.exchange.mit.edu (18.7.74.42) by w92exedge3.exchange.mit.edu (18.7.73.15) with Microsoft SMTP Server (TLS) id 15.0.1497.23; Thu, 19 Aug 2021 18:25:57 -0400 Received: from w92exhyb4.exchange.mit.edu (18.7.71.74) by w92expo30.exchange.mit.edu (18.7.74.42) with Microsoft SMTP Server (TLS) id 15.0.1497.23; Thu, 19 Aug 2021 18:26:14 -0400 Received: from NAM11-DM6-obe.outbound.protection.outlook.com (104.47.57.177) by w92exhyb4.exchange.mit.edu (18.7.71.74) with Microsoft SMTP Server (TLS) id 15.0.1497.23 via Frontend Transport; Thu, 19 Aug 2021 18:26:14 -0400 Received: from CO2PR04CA0177.namprd04.prod.outlook.com (2603:10b6:104:4::31) by SN6PR01MB3629.prod.exchangelabs.com (2603:10b6:805:17::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4436.19; Thu, 19 Aug 2021 22:26:25 +0000 Received: from CO1NAM11FT066.eop-nam11.prod.protection.outlook.com (2603:10b6:104:4:cafe::ef) by CO2PR04CA0177.outlook.office365.com (2603:10b6:104:4::31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4436.19 via Frontend Transport; Thu, 19 Aug 2021 22:26:24 +0000 Received: from premium47-5.web-hosting.com (68.65.123.245) by CO1NAM11FT066.mail.protection.outlook.com (10.13.175.18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4436.19 via Frontend Transport; Thu, 19 Aug 2021 22:26:24 +0000 Received: from 107-145-228-221.res.spectrum.com ([107.145.228.221]:57595 helo=[192.168.1.169]) by premium47.web-hosting.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94.2) (envelope-from ) id 1mGqUM-000Fcz-J5; Thu, 19 Aug 2021 18:26:23 -0400 From: Neil To: Microcontroller discussion list - Public. Sender: "piclist-bounces@mit.edu" Date: Thu, 19 Aug 2021 15:26:16 -0700 Subject: [EE] Ethernet isolation/protection Thread-Topic: [EE] Ethernet isolation/protection Thread-Index: AdeYDC71Gdo1tcntRPiOjUzrJQPHgg== Message-ID: <5f2c55e6-4358-ba20-e0dd-7819906b1f68@narwani.org> List-Help: List-Subscribe: , List-Unsubscribe: , Reply-To: Microcontroller discussion list - Public. Accept-Language: en-US Content-Language: en-US X-MS-Exchange-Organization-AuthAs: Anonymous X-MS-Exchange-Organization-AuthSource: TS500.efplus4.local X-MS-Has-Attach: X-Auto-Response-Suppress: All X-MS-Exchange-Organization-SenderIdResult: Pass X-MS-Exchange-Organization-PRD: mit.edu X-MS-TNEF-Correlator: received-spf: None (protection.outlook.com: narwani.org does not designate permitted sender hosts) dkim-signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=narwani.org ; s=default; h=Content-Type:MIME-Version:Date:Message-ID:Subject:From:To: Reply-To:Sender:Cc:Content-Transfer-Encoding:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=Kdj4J3pg9NDO89+eHYenkPiKm0t7eLs6TM02gYndFiU=; b=Uo6jPPwNIGB6Kse++qUd690V/E iXvO6+WX5AJFsSj3Sb1qjzga+Bzs4nvZrZQn/2BnUeK558/h6/0Yol62AmPTqxJ6weHJB6EebcLse ayYb4jhpLK36EUrYJx7bRBw8q752PuA038gK/uCUmkUjVKX/vljahznY59/NHbZhUp8ymn33hkAQ5 dNcOVAG7QgCbrcrXU7AYOmAIUAipJxF6dAyN++SobL9C3na0icnMdzEMGI4yCuEJaRQl80YiwlUVO s5AGHTr74bX1ZolMjSLkWj4JG7x55uLPYw6iTNgvwSO40ZiiGea1fuivdx+KWipRYU6x+Y5NnXBCK 5tlHMB8w==; authentication-results: spf=none (sender IP is 68.65.123.245) smtp.mailfrom=narwani.org; mit.edu; dkim=pass (signature was verified) header.d=narwani.org;mit.edu; dmarc=bestguesspass action=none header.from=narwani.org; user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 errors-to: piclist-bounces@mit.edu list-id: "Microcontroller discussion list - Public." list-post: x-beenthere: piclist@mit.edu x-mailman-version: 2.1.6 x-source-args: x-source-dir: x-antiabuse: Sender Address Domain - narwani.org x-source: x-authenticated-sender: premium47.web-hosting.com: ca4@narwani.org x-topics: [EE] x-content-filtered-by: Mailman/MimeDel 2.1.6 x-mailman-approved-at: Mon, 23 Aug 2021 06:36:10 -0400 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 SSdtIHVzaW5nIGFuIFNMVlUtMi44IHRvIHByb3RlY3QgYW4gZXRoZXJuZXQgZGV2aWNlIGZyb20g cG93ZXIgc3VyZ2VzLsKgIApCdXQgaXQgZG9lc24ndCB3b3JrLgpJIHBvcHBlZCBvZmYgdGhlIFNM VlUtMi44IGFuZCBieXBhc3NlZCB0aGUgbGluZXMgc3RyYWlnaHQgYWNyb3NzIChwaW4gMSAKdG8g OCwgMiB0byA3LCBldGMpIGFuZCBhbGwgd29ya3MgdGhlbi4KRmlyc3QgdGltZSBJJ20gdXNpbmcg dGhpcyBkZXZpY2UuwqAgQW55b25lIGhlcmUga25vdyBhYm91dCB0aGlzIGFuZCBob3cgSSAKY2Fu IGdldCB0aGlzIHdvcmtpbmc/CgoKRGF0YXNoZWV0cy4uLgpodHRwczovL3d3dy5saXR0ZWxmdXNl LmNvbS9+L21lZGlhL2VsZWN0cm9uaWNzL2RhdGFzaGVldHMvdHZzX2Rpb2RlX2FycmF5cy9saXR0 ZWxmdXNlX3R2c19kaW9kZV9hcnJheV9zbHZ1Ml84XzhfZGF0YXNoZWV0LnBkZi5wZGYKClRoaXMg b25lIHNob3dzIGhvdyBpdCdzIHN1cHBvc2VkIHRvIGJlIHVzZWQgKCJBcHBsaWNhdGlvbiBkaWFn cmFtIikuLi4KaHR0cHM6Ly93d3cuYm91cm5zLmNvbS9wZGZzL0NETkJTMDgtU0xWVTI4LTQucGRm CgpBbmQgdGhpcyBpcyBteSBjaXJjdWl0Li4uCgotLSAKaHR0cDovL3d3dy5waWNsaXN0LmNvbS90 ZWNocmVmL3BpY2xpc3QgUElDL1NYIEZBUSAmIGxpc3QgYXJjaGl2ZQpWaWV3L2NoYW5nZSB5b3Vy IG1lbWJlcnNoaXAgb3B0aW9ucyBhdApodHRwOi8vbWFpbG1hbi5taXQuZWR1L21haWxtYW4vbGlz dGluZm8vcGljbGlzdAo= .