{"id":2254,"date":"2010-12-30T10:28:01","date_gmt":"2010-12-30T10:28:01","guid":{"rendered":"http:\/\/www.markwilson.co.uk\/blog\/?p=2254"},"modified":"2010-12-30T10:28:01","modified_gmt":"2010-12-30T10:28:01","slug":"using-dhcp-reserved-client-options-for-particular-clients","status":"publish","type":"post","link":"https:\/\/www.markwilson.co.uk\/blog\/2010\/12\/using-dhcp-reserved-client-options-for-particular-clients.htm","title":{"rendered":"Using DHCP reserved client options for certain devices"},"content":{"rendered":"<p>I&#8217;ve been struggling with poor Internet connectivity for a while now &#8211; the speed is fine (any speed tests I conduct indicate a perfectly healthy 3-5Mbps on on &#8220;up to 8Mbps&#8221; ADSL line) but I frequently suffer from timeout, only to find that a refresh a few moments later brings the page back quickly.<\/p>\n<p>Suspecting a DNS issue (<a href=\"https:\/\/www.markwilson.co.uk\/blog\/2009\/11\/building-a-low-power-server-for-24x7-infrastructure-at-home-part-1-hardware-selection.htm\">my core infrastructure server only has a Atom processor and is a little light on memory<\/a>), I decided to bypass my local DNS server for those devices that don&#8217;t really need it because all the services they access are on the Internet (e.g. my iPad).<\/p>\n<p>I wasn&#8217;t sure how to do this &#8211; all of my devices pick up their TCP\/IP settings (and more) via DHCP &#8211; but then I realised that the Windows Server 2008 R2 DHCP service (and possibly earlier versions too) allows me to configure reserved client options.<\/p>\n<p>I worked out which IP address my iPad was using, then converted the lease to a reservation.  Once I had a reservation set for the device, I could configure the reserved client options (i.e. updating the DNS server addresses to only use my ISP servers, OpenDNS, or Google&#8217;s DNS servers).<\/p>\n<p>Unfortunately I&#8217;m still experiencing the timeouts and it may just be that my elderly Solwise ADSL modem\/router needs replacing&#8230; oh well, I guess it&#8217;s time to go back to the drawing board!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I&#8217;ve been struggling with poor Internet connectivity for a while now &#8211; the speed is fine (any speed tests I conduct indicate a perfectly healthy 3-5Mbps on on &#8220;up to 8Mbps&#8221; ADSL line) but I frequently suffer from timeout, only to find that a refresh a few moments later brings the page back quickly. Suspecting &hellip; <a href=\"https:\/\/www.markwilson.co.uk\/blog\/2010\/12\/using-dhcp-reserved-client-options-for-particular-clients.htm\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Using DHCP reserved client options for certain devices<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[],"tags":[87,7,175,45],"class_list":["post-2254","post","type-post","status-publish","format-standard","hentry","tag-adsl","tag-dns","tag-windows-server-2008-r2","tag-tcpip"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Using DHCP reserved client options for certain devices - markwilson.it<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.markwilson.co.uk\/blog\/2010\/12\/using-dhcp-reserved-client-options-for-particular-clients.htm\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Using DHCP reserved client options for certain devices - markwilson.it\" \/>\n<meta property=\"og:description\" content=\"I&#8217;ve been struggling with poor Internet connectivity for a while now &#8211; the speed is fine (any speed tests I conduct indicate a perfectly healthy 3-5Mbps on on &#8220;up to 8Mbps&#8221; ADSL line) but I frequently suffer from timeout, only to find that a refresh a few moments later brings the page back quickly. Suspecting &hellip; Continue reading Using DHCP reserved client options for certain devices\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.markwilson.co.uk\/blog\/2010\/12\/using-dhcp-reserved-client-options-for-particular-clients.htm\" \/>\n<meta property=\"og:site_name\" content=\"markwilson.it\" \/>\n<meta property=\"article:published_time\" content=\"2010-12-30T10:28:01+00:00\" \/>\n<meta name=\"author\" content=\"Mark Wilson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@markwilsonit\" \/>\n<meta name=\"twitter:site\" content=\"@markwilsonit\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Mark Wilson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2010\\\/12\\\/using-dhcp-reserved-client-options-for-particular-clients.htm#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2010\\\/12\\\/using-dhcp-reserved-client-options-for-particular-clients.htm\"},\"author\":{\"name\":\"Mark Wilson\",\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/#\\\/schema\\\/person\\\/98f61365e7c39d6be942174b8c4de468\"},\"headline\":\"Using DHCP reserved client options for certain devices\",\"datePublished\":\"2010-12-30T10:28:01+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2010\\\/12\\\/using-dhcp-reserved-client-options-for-particular-clients.htm\"},\"wordCount\":249,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/#\\\/schema\\\/person\\\/98f61365e7c39d6be942174b8c4de468\"},\"keywords\":[\"ADSL\",\"DNS\",\"Microsoft Windows Server 2008 R2\",\"TCP\\\/IP\"],\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2010\\\/12\\\/using-dhcp-reserved-client-options-for-particular-clients.htm#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2010\\\/12\\\/using-dhcp-reserved-client-options-for-particular-clients.htm\",\"url\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2010\\\/12\\\/using-dhcp-reserved-client-options-for-particular-clients.htm\",\"name\":\"Using DHCP reserved client options for certain devices - markwilson.it\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/#website\"},\"datePublished\":\"2010-12-30T10:28:01+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2010\\\/12\\\/using-dhcp-reserved-client-options-for-particular-clients.htm#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2010\\\/12\\\/using-dhcp-reserved-client-options-for-particular-clients.htm\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2010\\\/12\\\/using-dhcp-reserved-client-options-for-particular-clients.htm#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Using DHCP reserved client options for certain devices\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/\",\"name\":\"markwilson.it\",\"description\":\"get-info -class technology | write-output &gt; 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