X-MS-Exchange-Crosstenant-Fromentityheader: Hosted MIME-Version: 1.0 X-Forefront-PRVS: 05641FD966 X-RT-Original-Encoding: utf-8 X-Originating-Ip: [2620:df:8000:4401:0:2:eeee:eeee] X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mx.pao1.isc.org X-Forefront-Antispam-Report: SFV:NSPM;SFS:(10019020)(6069001)(366004)(346002)(39850400004)(376002)(396003)(39380400002)(189003)(199004)(478600001)(50466002)(6666003)(2950100002)(52116002)(6916009)(52396003)(76176011)(8936002)(5660300001)(81166006)(81156014)(786003)(1076002)(230700001)(386003)(6506007)(316002)(68736007)(106356001)(6116002)(88552002)(7736002)(105586002)(305945005)(50226002)(75432002)(23726003)(2906002)(97736004)(53936002)(6486002)(36756003)(229853002)(6512007)(25786009)(6246003)(16526019)(4326008)(47776003)(93886005)(86362001)(8676002)(39210200001);DIR:OUT;SFP:1102;SCL:1;SRVR:BN6PR01MB2692;H:localhost.localdomain;FPR:;SPF:None;PTR:InfoNoRecords;MX:1;A:0;LANG:en; From: "Brian De Wolf" From bldewolf@cpp.edu Fri Jan 26 19:57:50 2018 X-MS-Office365-Filtering-Correlation-ID: 994ff032-224d-4328-e963-08d564f71165 X-Originatororg: cpp.edu In-Reply-To: <20170823194543.GT9805@bender.cpp.edu> X-MS-Exchange-Transport-Crosstenantheadersstamped: BN6PR01MB2692 X-Microsoft-Antispam-PRVS: X-MS-Exchange-Crosstenant-ID: 164ba61e-39ec-4f5d-89ff-aa1f00a521b4 X-Mailer: Claws Mail 3.15.1-dirty (GTK+ 2.24.31; x86_64-pc-linux-gnu) content-type: text/plain; charset="utf-8" Subject: Re: [ISC-Bugs #45840] 4.3.3P1 - V6 - dhcpd: Unable to pick client address: no addresses available Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=bldewolf@cpp.edu; To: "Thomas Markwalder via RT" X-RT-Interface: Email X-Microsoft-Antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(8989060)(5600026)(4604075)(2017052603307)(7153060)(7193020);SRVR:BN6PR01MB2692; Received: from mx.pao1.isc.org (mx.pao1.isc.org [149.20.64.53]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mx.pao1.isc.org", Issuer "COMODO RSA Organization Validation Secure Server CA" (not verified)) by bugs.isc.org (Postfix) with ESMTPS id 5C751D78B0E for ; Fri, 26 Jan 2018 19:57:50 +0000 (UTC) Received: from NAM01-BN3-obe.outbound.protection.outlook.com (mail-bn3nam01on0096.outbound.protection.outlook.com [104.47.33.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mx.pao1.isc.org (Postfix) with ESMTPS id EFB3A3AB075 for ; Fri, 26 Jan 2018 19:57:47 +0000 (UTC) Received: from localhost.localdomain (2620:df:8000:4401:0:2:eeee:eeee) by BN6PR01MB2692.prod.exchangelabs.com (10.172.195.18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.20.444.14; Fri, 26 Jan 2018 19:57:45 +0000 X-Clientproxiedby: CO2PR05CA0053.namprd05.prod.outlook.com (10.166.88.149) To BN6PR01MB2692.prod.exchangelabs.com (10.172.195.18) Date: Fri, 26 Jan 2018 11:57:38 -0800 Dkim-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=livecsupomona.onmicrosoft.com; s=selector1-cpp-edu; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=ZFtao4mLk8oO0w86WaUUjGckQhufnyhDYwvBXTn2Cfo=; b=Et7WNtJTLOFvslwTRbc0jE4opp8h7sSCzaZjLBuzJ9dqtNVsi+cdoaKpfqnfmVRjjrBBLGQ5gGGaEFg17y3U3xZQ+0W2N7Zi8wtxccMHMBbV5M99qftWIuRTZjXgSXkgPOgX5e+ZZZlJs0F+dvB2nRnZEpJWXawOo3Qgrugy3OI= X-Original-To: dhcp-confidential@bugs.isc.org X-MS-Traffictypediagnostic: BN6PR01MB2692: Received-SPF: None (protection.outlook.com: cpp.edu does not designate permitted sender hosts) CC: "Paul B. Henson" Delivered-To: dhcp-confidential@bugs.isc.org X-MS-Publictraffictype: Email Return-Path: X-MS-Exchange-Crosstenant-Network-Message-ID: 994ff032-224d-4328-e963-08d564f71165 Spamdiagnosticmetadata: NSPM X-Exchange-Antispam-Report-Test: UriScan:; X-RT-Incoming-Encryption: Not encrypted Spamdiagnosticoutput: 1:99 Message-ID: <20180126115738.2f6c814f@cpp.edu> X-Microsoft-Exchange-Diagnostics: 1;BN6PR01MB2692;3:NosHWIn7o5wYSFwq1mIyZ4W7747x2vsU8MRqEpa/uNfCw+pGCrR4RARDuxy81GYYNdO6nBROdZAoevsT+XMBWNZ9SRF56uC03HEA3gRC3y156E4PAypIWIfr2AdMkZwHe6xzHSxrC2363XbSYfXQH5Ep2f17VMxRKDEc7QLTCuPqxjSolHUyDO7qWwI5mTnDLC03tEmzmEqHnsvu7Tks9Blr5DBRo5P4dL/unuHFi1ry1EzCBFYU2j7o3N0cxN3W;25:Ih3UVdWucgtrs3eadAd0ix2rZqVgmdMjlhkbO4GYLM8dA8akwTNKwEV5qIvr9UETGJVwFNJhEJyVP/D4aAUb65pxe9IwBG3Cfv0JcjyUtNB6qzzWzZ9Xb/5LOedXhX9XayFSJdpI6WDqWlq45++sOlbKITB4dnK0xsHjjRF1XvGpE1h7bqCDGxyRa8cnKeYImH60x+DoPKEOoABFJV2KloqXR53hXX5fhq8a5TgeR+NpaBzfH61vMELcfSdnnZigUhJzAZ00zxwN9l/e176gtTnrqKSldGkL++eKqYPfiC1XbY3zRrEV8q7nAgx0faoZ2c/OtHs848nh1y0OAeFKBA==;31:fG4LtM/o8eRFMT3eoqX/qGl/7REP6kRO6j6QuJ4auwFJbehd+5KelwH2xncm8FMnZvf3h8rkBfGeH2idKLmtTbYqtF9aznilIvDyXDkTYv3kEA+wcm85f+PsAYdqEtAxRBNL9PslUJ4zQzv7ZKFp51vSwqSLFWx4q2hjuIaqIuI+jcZzpPodUEmgNO5/nCpPj/BdYBdV25LZXSlIfGe4R+UAWYa9+ds/u+glYL4vv2c= X-Microsoft-Exchange-Diagnostics: 1;BN6PR01MB2692;20: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;4:xYTjNzWLBp1VK5fRXIQkeD3EHeNKzrlhKS37FCljGKO9IBcGBOoQv1047wffoQp8ZLGxeF1oTLfaGTfwdhVJTovM0UddZYap2HmB7Qv6QJSoZ7lxQUu7DEmVLd7Qd4r30B2AmKifmqvATcjODMeGYZYgy3VsY+7pkA5I0ZtnNtDCH3aqihHGrTHEGvOhJIVKJOMYGWMCxl+oUXNzBGlKwsxBgk6vlMr2aUhgKQgSnEZTKaeV4G0cGOEmHIgw5uL2X3ndtjovTWmqbPmSBaPO3w== X-Microsoft-Exchange-Diagnostics: 1;BN6PR01MB2692;23: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 X-Microsoft-Exchange-Diagnostics: 1;BN6PR01MB2692;6:4VUDtVt/Kn0z0jwvvEcDquXY8lcUA6ka5eWMaeOxH1Llva+cgxP74lX35ZAiXV0gWtrdCA60x+DfMhcTyn7PT/jO3thxRu/2G0uTuKlTBKKOyuMGy6nauH2GGT+7rQw8+nK28efIR+g04FFxYdmkvjv6GsobhurN0GuIQhjLAz8RU8DLfcNhfyp8fUuJg0PzGKCLTPfdMOFlfd2SsHkFZU0yF9XSpoGctmfAwFBZyTmGjYa/1DJMFq8OqFxiFItrLqITTrRjgf3ZreAUeicJXnKB1u078QNT2/oDi7kpQR7+B/mRP+UJ4oAsZPXtQdUM9grHeCSU1X7+lr/BfEUk9DeN/RVU1y7uRDQW3Q831eg=;5:vW+0BNjQ/bhtmRxSsnjISiJ7rRN2aycUnbONGZMQgNl1TKn01me/A43keuriPkKFCrAxibt3iLMrhQmD3Y/2Ak8CY5mS2Oz3TwibEnmN/yDL/uVj0LSma7ZAa/+jYcWW8VOdQzAB+Eq1moxOi49PHG62u+1/I6Uo1jxVJa2mBE4=;24:boYYCEumPfGak2kjZqPJRkpwv/Lbld9SLf5t5Q1DPFJjk3yngHB9DP+afNRXbPzHm/6s6vl+QllCxhml3zrCOXK5sjBvmt+zMo8i0KQk8iE=;7:7Oy3yNfLudI1lwtsMYjD8Azf0P10AXTLnDSOYz+q6ps/tuQT/0DJhidU7ddDioqM7BPMYZPviLP5TcxMYd6sbOo0fRgReQxzSWUr99NcJH9lZkmqmOWcRC7+NZc4+7QJZ+PUqzp1PxK3rdJSGXxLKBRAadZhsTZFtYKwR1lQg/nONsfnY4aJr/OdY+0LRDmQ1+B5WIIVANpvcSH5Lw8oTv+XS/jnV9Sr4Z4kzlDB1BgRKTI5E05bbH4CeCvVZy5y X-Exchange-Antispam-Report-Cfa-Test: BCL:0;PCL:0;RULEID:(6040501)(2401047)(8121501046)(5005006)(10201501046)(3231076)(2400081)(944501161)(93006095)(93001095)(3002001)(6041288)(201703131423095)(201702281529075)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123564045)(20161123558120)(20161123560045)(20161123562045)(6072148)(201708071742011);SRVR:BN6PR01MB2692;BCL:0;PCL:0;RULEID:;SRVR:BN6PR01MB2692; X-MS-Exchange-Crosstenant-Originalarrivaltime: 26 Jan 2018 19:57:45.0165 (UTC) X-Spam-Status: No, score=-0.0 required=5.0 tests=RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL autolearn=disabled version=3.4.1 Content-Transfer-Encoding: 7bit References: <20170823194543.GT9805@bender.cpp.edu> RT-Message-ID: Content-Length: 903 Hi, I work with Paul and I've been investigating this issue. I created a program for analyzing the leases file. It reads the IA-NA and addresses from the lease and performs the hashing function to find how many iterations the given address took to generate. For a leases file from one of our servers, 25,557 of the 79,003 leases took more than one iteration. The total number of addresses generated is 162,112, over double the number of actual leases. For comparison, I used dibbler to load one of our test servers with 398,886 leases and only 19 required two generations. One difference from my test case is that both of our real servers send offers but only one of them is receiving a reply (they serve the same /64s with addresses from independent /96s). Is it possible that the servers are skipping addresses because they've already offered them and somehow they are not expiring correctly?