{"id":296,"date":"2018-03-09T07:16:03","date_gmt":"2018-03-09T07:16:03","guid":{"rendered":"http:\/\/www.certexams.com\/Blog\/?page_id=296"},"modified":"2018-07-02T07:32:53","modified_gmt":"2018-07-02T07:32:53","slug":"available-hosts-and-networks-for-class-b-and-class-c-ip-networks","status":"publish","type":"page","link":"https:\/\/www.certexams.com\/Blog\/ccna-examsim\/available-hosts-and-networks-for-class-b-and-class-c-ip-networks\/","title":{"rendered":"Available Hosts and Networks for Class B and Class C IPv4 Networks"},"content":{"rendered":"<h2>For Class B Networks<\/h2>\n<div class=\"panel-right-out\">\n<div class=\"panel-right-in\">\n<table border=\"0\" width=\"100%\">\n<colgroup>\n<col width=\"15%\" \/>\n<col width=\"25%\" \/>\n<col width=\"15%\" \/>\n<col width=\"15%\" \/>\n<col width=\"15%\" \/>\n<col width=\"15%\" \/> <\/colgroup>\n<tbody>\n<tr>\n<th>network<\/th>\n<th>network mask<\/th>\n<th colspan=\"2\">hosts<\/th>\n<th>networks<\/th>\n<th>total hosts<\/th>\n<\/tr>\n<tr>\n<th>\/count<\/th>\n<th><\/th>\n<th>possible<\/th>\n<th>available<\/th>\n<th colspan=\"2\"><\/th>\n<\/tr>\n<tr bgcolor=\"#d7d7d7\">\n<td>16<\/td>\n<td>255.255.0.0<\/td>\n<td>65536<\/td>\n<td>65534<\/td>\n<td>1<\/td>\n<td>65534<\/td>\n<\/tr>\n<tr bgcolor=\"#ddeeee\">\n<td>17<\/td>\n<td>255.255.128.0<\/td>\n<td>32768<\/td>\n<td>32766<\/td>\n<td>2<\/td>\n<td>65532<\/td>\n<\/tr>\n<tr bgcolor=\"#d7d7d7\">\n<td>18<\/td>\n<td>255.255.192.0<\/td>\n<td>16384<\/td>\n<td>16382<\/td>\n<td>4<\/td>\n<td>65528<\/td>\n<\/tr>\n<tr bgcolor=\"#ddeeee\">\n<td>19<\/td>\n<td>255.255.224.0<\/td>\n<td>8192<\/td>\n<td>8190<\/td>\n<td>8<\/td>\n<td>65520<\/td>\n<\/tr>\n<tr bgcolor=\"#d7d7d7\">\n<td>20<\/td>\n<td>255.255.240.0<\/td>\n<td>4096<\/td>\n<td>4094<\/td>\n<td>16<\/td>\n<td>65504<\/td>\n<\/tr>\n<tr bgcolor=\"#ddeeee\">\n<td>21<\/td>\n<td>255.255.248.0<\/td>\n<td>2048<\/td>\n<td>2046<\/td>\n<td>32<\/td>\n<td>65472<\/td>\n<\/tr>\n<tr bgcolor=\"#d7d7d7\">\n<td>22<\/td>\n<td>255.255.252.0<\/td>\n<td>1024<\/td>\n<td>1022<\/td>\n<td>64<\/td>\n<td>65408<\/td>\n<\/tr>\n<tr bgcolor=\"#ddeeee\">\n<td>23<\/td>\n<td>255.255.254.0<\/td>\n<td>512<\/td>\n<td>510<\/td>\n<td>128<\/td>\n<td>65280<\/td>\n<\/tr>\n<tr bgcolor=\"#d7d7d7\">\n<td>24<\/td>\n<td>255.255.255.0<\/td>\n<td>256<\/td>\n<td>254<\/td>\n<td>256<\/td>\n<td>65024<\/td>\n<\/tr>\n<tr bgcolor=\"#ddeeee\">\n<td>25<\/td>\n<td>255.255.255.128<\/td>\n<td>128<\/td>\n<td>126<\/td>\n<td>512<\/td>\n<td>64512<\/td>\n<\/tr>\n<tr bgcolor=\"#d7d7d7\">\n<td>26<\/td>\n<td>255.255.255.192<\/td>\n<td>64<\/td>\n<td>62<\/td>\n<td>1024<\/td>\n<td>63488<\/td>\n<\/tr>\n<tr bgcolor=\"#ddeeee\">\n<td>27<\/td>\n<td>255.255.255.224<\/td>\n<td>32<\/td>\n<td>30<\/td>\n<td>2048<\/td>\n<td>61440<\/td>\n<\/tr>\n<tr bgcolor=\"#d7d7d7\">\n<td>28<\/td>\n<td>255.255.255.240<\/td>\n<td>16<\/td>\n<td>14<\/td>\n<td>4096<\/td>\n<td>57344<\/td>\n<\/tr>\n<tr bgcolor=\"#ddeeee\">\n<td>29<\/td>\n<td>255.255.255.248<\/td>\n<td>8<\/td>\n<td>6<\/td>\n<td>8192<\/td>\n<td>48744<\/td>\n<\/tr>\n<tr bgcolor=\"#d7d7d7\">\n<td>30<\/td>\n<td>255.255.255.252<\/td>\n<td>4<\/td>\n<td>2<\/td>\n<td>16384<\/td>\n<td>32764<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>For Class C Networks<\/h3>\n<table border=\"0\" width=\"100%\">\n<colgroup>\n<col width=\"15%\" \/>\n<col width=\"25%\" \/>\n<col width=\"15%\" \/>\n<col width=\"15%\" \/>\n<col width=\"15%\" \/>\n<col width=\"15%\" \/> <\/colgroup>\n<tbody>\n<tr>\n<th>network<\/th>\n<th>network mask<\/th>\n<th colspan=\"2\">hosts<\/th>\n<th>networks<\/th>\n<th>total hosts<\/th>\n<\/tr>\n<tr>\n<th>\/count<\/th>\n<th><\/th>\n<th>possible<\/th>\n<th>available<\/th>\n<th colspan=\"2\"><\/th>\n<\/tr>\n<tr bgcolor=\"#d7d7d7\">\n<td>24<\/td>\n<td>255.255.255.0<\/td>\n<td>256<\/td>\n<td>254<\/td>\n<td>1<\/td>\n<td>254<\/td>\n<\/tr>\n<tr bgcolor=\"#ddeeee\">\n<td>25<\/td>\n<td>255.255.255.128<\/td>\n<td>128<\/td>\n<td>126<\/td>\n<td>2<\/td>\n<td>252<\/td>\n<\/tr>\n<tr bgcolor=\"#d7d7d7\">\n<td>26<\/td>\n<td>255.255.255.192<\/td>\n<td>64<\/td>\n<td>62<\/td>\n<td>4<\/td>\n<td>248<\/td>\n<\/tr>\n<tr bgcolor=\"#ddeeee\">\n<td>27<\/td>\n<td>255.255.255.224<\/td>\n<td>32<\/td>\n<td>30<\/td>\n<td>8<\/td>\n<td>240<\/td>\n<\/tr>\n<tr bgcolor=\"#d7d7d7\">\n<td>28<\/td>\n<td>255.255.255.240<\/td>\n<td>16<\/td>\n<td>14<\/td>\n<td>16<\/td>\n<td>224<\/td>\n<\/tr>\n<tr bgcolor=\"#ddeeee\">\n<td>29<\/td>\n<td>255.255.255.248<\/td>\n<td>8<\/td>\n<td>6<\/td>\n<td>32<\/td>\n<td>192<\/td>\n<\/tr>\n<tr bgcolor=\"#d7d7d7\">\n<td>30<\/td>\n<td>255.255.255.252<\/td>\n<td>4<\/td>\n<td>2<\/td>\n<td>64<\/td>\n<td>128<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><b>possible<\/b>: number of mathematically possible hosts or networks.<\/p>\n<p><b>available<\/b>: number of hosts or networks after subtracting<br \/>\nall-zeros and all-ones identifiers.<\/p>\n<p>Private IT Addresses:\u00a0 These addresses can&#8217;t be used in public Internet.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-350 size-full\" src=\"https:\/\/www.certexams.com\/Blog\/wp-content\/uploads\/2018\/07\/private_ip_addresses.jpg\" alt=\"Private IP addresses\" width=\"560\" height=\"115\" srcset=\"https:\/\/www.certexams.com\/Blog\/wp-content\/uploads\/2018\/07\/private_ip_addresses.jpg 560w, https:\/\/www.certexams.com\/Blog\/wp-content\/uploads\/2018\/07\/private_ip_addresses-300x62.jpg 300w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\" \/><\/p>\n<p>IP classes A, B &amp; C had been some reserved addresses, known as private IP addresses. These IPs can be used within a network, campus, company and are private to it. These addresses cannot be routed on the Internet.<\/p>\n<h2>Loopback IP Addresses<\/h2>\n<p>The IP address range 127.0.0.0 \u2013 127.255.255.255 is reserved for loopback, i.e. a Host\u2019s self-address, also known as localhost address. This loopback IP address is managed entirely by and within the operating system. Loopback address is useful for sending packets to an internal interface and testing the communication.<\/p>\n<p>&nbsp;<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>For Class B Networks network network mask hosts networks total hosts \/count possible available 16 255.255.0.0 65536 65534 1 65534 17 255.255.128.0 32768 32766 2 65532 18 255.255.192.0 16384 16382 4 65528 19 255.255.224.0 8192 8190 8 65520 20 255.255.240.0 4096 4094 16 65504 21 255.255.248.0 2048 2046 32 65472 22 255.255.252.0 1024 1022 64 65408 23 255.255.254.0 512 510&#8230; <a href=\"https:\/\/www.certexams.com\/Blog\/ccna-examsim\/available-hosts-and-networks-for-class-b-and-class-c-ip-networks\/\">Read more &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-296","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.certexams.com\/Blog\/wp-json\/wp\/v2\/pages\/296","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.certexams.com\/Blog\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.certexams.com\/Blog\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.certexams.com\/Blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.certexams.com\/Blog\/wp-json\/wp\/v2\/comments?post=296"}],"version-history":[{"count":5,"href":"https:\/\/www.certexams.com\/Blog\/wp-json\/wp\/v2\/pages\/296\/revisions"}],"predecessor-version":[{"id":351,"href":"https:\/\/www.certexams.com\/Blog\/wp-json\/wp\/v2\/pages\/296\/revisions\/351"}],"up":[{"embeddable":true,"href":"https:\/\/www.certexams.com\/Blog\/wp-json\/wp\/v2\/pages\/2"}],"wp:attachment":[{"href":"https:\/\/www.certexams.com\/Blog\/wp-json\/wp\/v2\/media?parent=296"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}