{"id":33,"date":"2021-08-19T07:57:54","date_gmt":"2021-08-19T07:57:54","guid":{"rendered":"https:\/\/subnettingpractice.com\/?page_id=33"},"modified":"2023-05-04T20:57:42","modified_gmt":"2023-05-04T13:57:42","slug":"ipv6-subnet-calculator","status":"publish","type":"page","link":"https:\/\/subnettingpractice.com\/ipv6-subnet-calculator.html","title":{"rendered":"IPv6 Subnet Calculator"},"content":{"rendered":"<p data-pm-slice=\"1 1 []\">Input an <strong>IPv6 address<\/strong> and the <strong>network prefix<\/strong> or subnet size in slash notation:<\/p>\r\n\r\n<form><label>IPv6 address:<\/label>\r\n<input id=\"ip\" style=\"width: 300px;\" type=\"text\" value=\"2001:db8::\/32\" \/>\r\n <button type=\"button\" onclick=\"calculate();\">Calculate<\/button>\r\n<table cellspacing=\"1\" cellpadding=\"2\" bgcolor=\"#EEEEEE\">\r\n<tbody>\r\n<tr>\r\n<td>Compressed Address:<\/td>\r\n<td id=\"address\"><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Expanded Address:<\/td>\r\n<td id=\"expanded\"><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Prefix:<\/td>\r\n<td id=\"prefix\"><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Range:<\/td>\r\n<td id=\"first\"><\/td>\r\n<\/tr>\r\n<tr>\r\n<td><\/td>\r\n<td id=\"last\"><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Number of \/64s:<\/td>\r\n<td id=\"64s\"><\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<p data-pm-slice=\"1 1 []\">Select a number of subnets or a subnet size to divide the above into:<\/p>\r\n<input id=\"subnets\" style=\"width: 60px;\" type=\"text\" value=\"4\" \/>\r\n<button type=\"button\" onclick=\"subnet_subnet();\">Calculate<\/button>\r\nsubnets or \r\n<select id=\"slashes\">\r\n<option value=\"8\">\/8<\/option>\r\n<option value=\"9\">\/9<\/option>\r\n<option value=\"10\">\/10<\/option>\r\n<option value=\"11\">\/11<\/option>\r\n<option value=\"12\">\/12<\/option>\r\n<option value=\"13\">\/13<\/option>\r\n<option value=\"14\">\/14<\/option>\r\n<option value=\"15\">\/15<\/option>\r\n<option value=\"16\">\/16<\/option>\r\n<option value=\"17\">\/17<\/option>\r\n<option value=\"18\">\/18<\/option>\r\n<option value=\"19\">\/19<\/option>\r\n<option value=\"20\">\/20<\/option>\r\n<option value=\"21\">\/21<\/option>\r\n<option value=\"22\">\/22<\/option>\r\n<option value=\"23\">\/23<\/option>\r\n<option value=\"24\">\/24<\/option>\r\n<option value=\"25\">\/25<\/option>\r\n<option value=\"26\">\/26<\/option>\r\n<option value=\"27\">\/27<\/option>\r\n<option value=\"28\">\/28<\/option>\r\n<option value=\"29\">\/29<\/option>\r\n<option value=\"30\">\/30<\/option>\r\n<option value=\"31\">\/31<\/option>\r\n<option value=\"32\">\/32<\/option>\r\n<option value=\"33\">\/33<\/option>\r\n<option value=\"34\">\/34<\/option>\r\n<option value=\"35\">\/35<\/option>\r\n<option value=\"36\">\/36<\/option>\r\n<option value=\"37\">\/37<\/option>\r\n<option value=\"38\">\/38<\/option>\r\n<option value=\"39\">\/39<\/option>\r\n<option value=\"40\">\/40<\/option>\r\n<option value=\"41\">\/41<\/option>\r\n<option value=\"42\">\/42<\/option>\r\n<option value=\"43\">\/43<\/option>\r\n<option value=\"44\">\/44<\/option>\r\n<option value=\"45\">\/45<\/option>\r\n<option value=\"46\">\/46<\/option>\r\n<option value=\"47\">\/47<\/option>\r\n<option value=\"48\">\/48<\/option>\r\n<option value=\"49\">\/49<\/option>\r\n<option value=\"50\">\/50<\/option>\r\n<option value=\"51\">\/51<\/option>\r\n<option value=\"52\">\/52<\/option>\r\n<option value=\"53\">\/53<\/option>\r\n<option value=\"54\">\/54<\/option>\r\n<option value=\"55\">\/55<\/option>\r\n<option value=\"56\">\/56<\/option>\r\n<option value=\"57\">\/57<\/option>\r\n<option value=\"58\">\/58<\/option>\r\n<option value=\"59\">\/59<\/option>\r\n<option value=\"60\">\/60<\/option>\r\n<option value=\"61\">\/61<\/option>\r\n<option value=\"62\">\/62<\/option>\r\n<option value=\"63\">\/63<\/option>\r\n<option value=\"64\">\/64<\/option>\r\n<option value=\"65\">\/65<\/option>\r\n<option value=\"66\">\/66<\/option>\r\n<option value=\"67\">\/67<\/option>\r\n<option value=\"68\">\/68<\/option>\r\n<option value=\"69\">\/69<\/option>\r\n<option value=\"70\">\/70<\/option>\r\n<option value=\"71\">\/71<\/option>\r\n<option value=\"72\">\/72<\/option>\r\n<option value=\"73\">\/73<\/option>\r\n<option value=\"74\">\/74<\/option>\r\n<option value=\"75\">\/75<\/option>\r\n<option value=\"76\">\/76<\/option>\r\n<option value=\"77\">\/77<\/option>\r\n<option value=\"78\">\/78<\/option>\r\n<option value=\"79\">\/79<\/option>\r\n<option value=\"80\">\/80<\/option>\r\n<option value=\"81\">\/81<\/option>\r\n<option value=\"82\">\/82<\/option>\r\n<option value=\"83\">\/83<\/option>\r\n<option value=\"84\">\/84<\/option>\r\n<option value=\"85\">\/85<\/option>\r\n<option value=\"86\">\/86<\/option>\r\n<option value=\"87\">\/87<\/option>\r\n<option value=\"88\">\/88<\/option>\r\n<option value=\"89\">\/89<\/option>\r\n<option value=\"90\">\/90<\/option>\r\n<option value=\"91\">\/91<\/option>\r\n<option value=\"92\">\/92<\/option>\r\n<option value=\"93\">\/93<\/option>\r\n<option value=\"94\">\/94<\/option>\r\n<option value=\"95\">\/95<\/option>\r\n<option value=\"96\">\/96<\/option>\r\n<option value=\"97\">\/97<\/option>\r\n<option value=\"98\">\/98<\/option>\r\n<option value=\"99\">\/99<\/option>\r\n<option value=\"100\">\/100<\/option>\r\n<option value=\"101\">\/101<\/option>\r\n<option value=\"102\">\/102<\/option>\r\n<option value=\"103\">\/103<\/option>\r\n<option value=\"104\">\/104<\/option>\r\n<option value=\"105\">\/105<\/option>\r\n<option value=\"106\">\/106<\/option>\r\n<option value=\"107\">\/107<\/option>\r\n<option value=\"108\">\/108<\/option>\r\n<option value=\"109\">\/109<\/option>\r\n<option value=\"110\">\/110<\/option>\r\n<option value=\"111\">\/111<\/option>\r\n<option value=\"112\">\/112<\/option>\r\n<option value=\"113\">\/113<\/option>\r\n<option value=\"114\">\/114<\/option>\r\n<option value=\"115\">\/115<\/option>\r\n<option value=\"116\">\/116<\/option>\r\n<option value=\"117\">\/117<\/option>\r\n<option value=\"118\">\/118<\/option>\r\n<option value=\"119\">\/119<\/option>\r\n<option value=\"120\">\/120<\/option>\r\n<option value=\"121\">\/121<\/option>\r\n<option value=\"122\">\/122<\/option>\r\n<option value=\"123\">\/123<\/option>\r\n<option value=\"124\">\/124<\/option>\r\n<option value=\"125\">\/125<\/option>\r\n<option value=\"126\">\/126<\/option>\r\n<option value=\"127\">\/127<\/option>\r\n<\/select>\r\n<button type=\"button\" onclick=\"subnet_slashes();\">Calculate<\/button>\r\n<div class=\"su-spacer\" style=\"height:20px\"><\/div><p id=\"subnetted\"><\/p><p id=\"facts\"> \r\n<p data-pm-slice=\"1 1 []\">This IPv6 subnet calculator can be used the same way as our <a href=\"\/vlsm.html\" target=\"_blank\" rel=\"noopener noreferrer\">VLSM calculator<\/a>, which is used to plan an IPv4 network.<\/p>\r\n<p data-pm-slice=\"1 1 []\">Note that the best practice is to always use a<strong> \/64 subnet mask<\/strong> for simplicity on real-world IPv6 subnets with hosts. This can lead to a lot of &#8216;wasted&#8217; IP addresses, but the IPv6 address space is so large that it isn&#8217;t a concern.<\/p>\r\n<p data-pm-slice=\"1 1 []\">This IPv6 subnetting calculator is provided to help you understand the IPv6 address space better and to study for exams &#8211; you should always use \/64 subnet masks on real networks.<\/p>\r\n<p data-pm-slice=\"1 1 []\">Remember, the <a href=\"\/how-large-is-ipv6-address-space.html\" target=\"_blank\" rel=\"noopener noreferrer\">IPv6 address space<\/a> can be huge. Because of this, only up to the first <strong>999<\/strong> possible subnets are displayed.<\/p>\r\n\r\n\r\n<hr \/>\r\n\r\nDownload our <strong><a href=\"\/subnet-cheat-sheet.html\">Subnet Cheat Sheet<\/a><\/strong> for all the essential information you need to quickly perform subnet calculations in your head.\r\n\r\nIf you want to learn more about networking and get the Cisco CCNA certification, we highly recommend the Cisco CCNA Gold Bootcamp as your <a href=\"https:\/\/www.flackbox.com\/cisco-ccna-gold-bootcamp-li#sp2\"><strong>CCNA training course<\/strong><\/a>. The CCNA is by far the most in-demand networking certification by employers, and the Gold Bootcamp is the highest rated Cisco course online. It has an average rating of 4.8 from over 30,000 public reviews:\r\n\r\n<div class=\"su-spacer\" style=\"height:20px\"><\/div>\r\n\r\n<a href=\"https:\/\/www.flackbox.com\/cisco-ccna-gold-bootcamp-li#sp2\" rel=\"nofollow sponsored\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2436\" src=\"https:\/\/subnettingpractice.com\/wp-content\/uploads\/CCNA-Banner-Highest-Rated.webp\" alt=\"Cisco CCNA Gold Bootcamp training course\" width=\"682\" height=\"136\" \/><\/a>","protected":false},"excerpt":{"rendered":"Input an IPv6 address and the network prefix or subnet size in slash notation: IPv6 address: Calculate Compressed Address: Expanded Address: Prefix: Range: Number of \/64s: Select a number of subnets or a subnet size to divide the above into: Calculate subnets or \/8 \/9 \/10 \/11 \/12 \/13 \/14 \/15 \/16 \/17 \/18 \/19 &#8230; <a title=\"IPv6 Subnet Calculator\" class=\"read-more\" href=\"https:\/\/subnettingpractice.com\/ipv6-subnet-calculator.html\" aria-label=\"Read more about IPv6 Subnet Calculator\">Read more<\/a>","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":11,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>IPv6 Subnet Calculator - subnettingpractice.com<\/title>\n<meta name=\"description\" content=\"Free and easy IPv6 subnet calculator. 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