tag:blogger.com,1999:blog-53999087310368919662024-03-08T14:33:46.896-08:00INT ZBZ(Under Construction) A site to find U.S. Navy IT related stuff!Nick IT Nitehttp://www.blogger.com/profile/03504576369465875197noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-5399908731036891966.post-31626749574030367602016-06-29T19:12:00.000-07:002016-06-29T19:14:44.987-07:00Every IT should Know: IP Address Classes<div dir="ltr" style="text-align: left;" trbidi="on">
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Here is info on IP Classes and some methods to memorize them.</span></div>
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 700; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"></span><br />
<a name='more'></a><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 700; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">There are 5 Classes of IP addresses here are the ranges and default subnet mask:</span></div>
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Class A - 1 through 127 Subnet: 255.0.0.0</span></div>
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Class B - 128 though 191 Subnet: 255.255.0.0</span></div>
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Class C - 192 through 223 Subnet: 255.255.255.0</span></div>
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Class D - 224 through 239 (Reserved for multicast)</span></div>
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Class E - 240 through 254 (Reserved for experimental and research use)</span></div>
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: italic; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">(Class A 127.0.0.0 to 127.255.255.255 cannot be used as they are reserved for diagnostics and testing)</span></div>
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<br />
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 700; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Leading bits:</span></div>
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">To understand leading bits and IP Classes you need to know binary. </span></div>
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<br />
<div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;">
<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">To simplify binary imagine 4 people lined up from right to left number them starting with 1 number doubling the number each person over </span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><img height="253" src="https://lh5.googleusercontent.com/mO7_1xgQ6_NMVo1Eema9N1PNwmA1FyVzk3rlM9b34p_RiW94dB58RxA3_dAanzkLjoQ1a7XqeExQb94akO4t1R8UQ1Z-nSNWLwr0Xonv0UCBJtfQniGX2Mz_ay43XzgZ_HjpBr-x" style="-webkit-transform: rotate(0.00rad); border: none; transform: rotate(0.00rad);" width="624" /></span></div>
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div>
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Now cover some of the numbers and leave others uncovered</span></div>
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div>
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><img height="253" src="https://lh5.googleusercontent.com/DuOvFrgJC38Z2DXWmkK8bt8yFtD6QxGEteakaHmPJq_VI66hTtQCa4BDPzZXdmAFvKUYRgNlGrbGkcG6W91fZzj9qXH1V5O0JMC6lhjQGNI4BWA7eGCOcIesWMz4cL4K670Ml64a" style="-webkit-transform: rotate(0.00rad); border: none; transform: rotate(0.00rad);" width="624" /></span></div>
<div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;">
<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Now add up the uncovered number. That is how binary works each person is representing a bit the bit is either on represented by 1 or off represented by 0 then you just add up the bits that are on.</span></div>
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">An IP addresses is 4 octets comprised of 8 bits instead of just going to 8 now you have bits representing as much as 128. In binary 10000000 is 128 because the the first bit represents 128 and it is the only one on.</span></div>
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<div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;">
<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Now that you have a basic idea of binary you can understand the logic behind IP address class ranges and how they are set. Each IP address Class has leading bits these leading bits can not change. To better understand look at the chart of IP Classes the leading bits have been highlighted. </span></div>
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Class A leading Bits 0</span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br class="kix-line-break" /></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> 0. 0. 0. 0 =</span><span style="background-color: yellow; color: black; font-family: "arial"; font-size: 14.6667px; font-style: normal; font-variant: normal; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><b> 0</b></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">0000000.00000000.00000000.00000000</span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br class="kix-line-break" /></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">127.255.255.255 = </span><span style="background-color: yellow; color: black; font-family: "arial"; font-size: 14.6667px; font-style: normal; font-variant: normal; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><b>0</b></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">1111111.11111111.11111111.11111111</span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br class="kix-line-break" /></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">(Notice that the leading bit never ends right before the bit of 128 and that is the next Class of IP)</span></div>
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br class="kix-line-break" /></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Class B leading Bits 10</span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br class="kix-line-break" /></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">128. 0. 0. 0 = </span><span style="background-color: yellow; color: black; font-family: "arial"; font-size: 14.6667px; font-style: normal; font-variant: normal; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><b>10</b></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">000000.00000000.00000000.00000000</span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br class="kix-line-break" /></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">191.255.255.255 = </span><span style="background-color: yellow; color: black; font-family: "arial"; font-size: 14.6667px; font-style: normal; font-variant: normal; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><b>10</b></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">111111.11111111.11111111.11111111</span></div>
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br class="kix-line-break" /></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Class C leading Bits 110</span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br class="kix-line-break" /></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">192. 0. 0. 0 = </span><span style="background-color: yellow; color: black; font-family: "arial"; font-size: 14.6667px; font-style: normal; font-variant: normal; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><b>110</b></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">00000.00000000.00000000.00000000</span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br class="kix-line-break" /></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">223.255.255.255 = </span><span style="background-color: yellow; color: black; font-family: "arial"; font-size: 14.6667px; font-style: normal; font-variant: normal; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><b>110</b></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">11111.11111111.11111111.11111111</span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br class="kix-line-break" /></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br class="kix-line-break" /></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Class D leading Bits 1110</span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br class="kix-line-break" /></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">224. 0. 0. 0 =</span><span style="font-family: "arial"; font-size: 14.6667px; font-style: normal; font-variant: normal; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><b><span style="background-color: transparent; color: yellow;"> </span><span style="background-color: yellow;">1110</span></b></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">0000.00000000.00000000.00000000</span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br class="kix-line-break" /></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">239.255.255.255 = </span><span style="background-color: yellow; color: black; font-family: "arial"; font-size: 14.6667px; font-style: normal; font-variant: normal; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><b>1110</b></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">1111.11111111.11111111.11111111</span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br class="kix-line-break" /></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br class="kix-line-break" /></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Class E leading Bits 1111</span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br class="kix-line-break" /></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">240. 0. 0. 0 = </span><span style="background-color: yellow; color: black; font-family: "arial"; font-size: 14.6667px; font-style: normal; font-variant: normal; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><b>1111</b></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">0000.00000000.00000000.00000000</span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br class="kix-line-break" /></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">255.255.255.255 = </span><span style="background-color: yellow; font-family: "arial"; font-size: 14.6667px; font-style: normal; font-variant: normal; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><b>1111</b></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">1111.11111111.11111111.11111111</span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"><br class="kix-line-break" /></span><span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span></div>
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 700; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Available Networks and Hosts IP's</span></div>
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">The Default Subnet marks what portion of he IP address is Network with 255 and what is Host with 0.</span></div>
<div dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;">
<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Look at the chart below the correlating number for available Networks and Hosts. </span></div>
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<span id="docs-internal-guid-e7eff288-9ef5-1433-3aea-34b6d20e8258"></span><br />
<div dir="ltr" style="margin-left: 0pt;">
<table style="border-collapse: collapse; border: none;"><colgroup><col width="67"></col><col width="97"></col><col width="148"></col><col width="97"></col><col width="125"></col></colgroup><tbody>
<tr style="height: 66px;"><td style="background-color: #ededed; border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="background-color: transparent; font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">Class</span></div>
</td><td style="background-color: #ededed; border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="background-color: transparent; font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">First octet Range</span></div>
</td><td style="background-color: #ededed; border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="background-color: transparent; font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">Network portion=N</span></div>
<div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="background-color: transparent; font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">Host portion=H</span></div>
</td><td style="background-color: #ededed; border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="background-color: transparent; font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">Available Networks</span></div>
</td><td style="background-color: #ededed; border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="background-color: transparent; font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">Avalable Hosts per Network</span></div>
</td></tr>
<tr style="height: 17px;"><td style="border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">A</span></div>
</td><td style="border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">1–127</span></div>
</td><td style="border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">N.H.H.H</span></div>
<div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">255.0.0.0</span></div>
</td><td style="border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">126</span></div>
<div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">(127 is reserved)</span></div>
</td><td style="border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">16,777,214</span></div>
</td></tr>
<tr style="height: 11px;"><td style="border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">B</span></div>
</td><td style="border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">128–191</span></div>
</td><td style="border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">N.N.H.H</span></div>
<div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">255.255.0.0</span></div>
</td><td style="border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">16,384</span></div>
</td><td style="border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">65,534</span></div>
</td></tr>
<tr style="height: 0px;"><td style="border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">C</span></div>
</td><td style="border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">192–223</span></div>
</td><td style="border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">N.N.N.H</span></div>
<div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">255.255.255.0</span></div>
</td><td style="border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">2,097,152</span></div>
</td><td style="border-bottom: solid #bbbbbb 1px; border-left: solid #bbbbbb 1px; border-right: solid #bbbbbb 1px; border-top: solid #bbbbbb 1px; padding: 11px 8px 11px 8px; vertical-align: top;"><div dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-family: "arial"; font-size: 14.6667px; vertical-align: baseline; white-space: pre-wrap;">254</span></div>
</td></tr>
</tbody></table>
</div>
<span id="docs-internal-guid-e7eff288-9ef5-1433-3aea-34b6d20e8258">
<div dir="ltr" style="margin-left: 0pt;">
(The reason class C is not 255 available host per network is that you have 1 host for broadcast)</div>
</span><br />
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<span style="background-color: transparent; color: black; font-family: "arial"; font-size: 14.666666666666666px; font-style: normal; font-variant: normal; font-weight: 400; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;"> </span></div>
<b>How to remember Private IP Addresses</b><br />
<b><br /></b>
Class A- 10.0.0.0 to 10.255.255.255 <br />
All Class A IP's that start with 10 are private<br />
<br />
Class B 172.16.0.0 to 172.31.255.255 <br />
There are 16 private networks available in class B so the 2nd octet is 16 then including 16 count up 16 times 16, 17,18,19........... 31 that is the 2nd octet of the highest Class B private IP remaining octets go from 0-255.<br />
<br />
Class C- 192.168.0.0 to 192.168.255.255<br />
What is the default IP on your home router?<br />
<br />
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<br /></div>
Nick IT Nitehttp://www.blogger.com/profile/03504576369465875197noreply@blogger.com1tag:blogger.com,1999:blog-5399908731036891966.post-21696826730753799942016-06-08T19:21:00.000-07:002016-06-08T19:21:44.039-07:00Under Construction<div dir="ltr" style="text-align: left;" trbidi="on">
Right now I am working on the site but should be up any day now.<br />
<br />
My plan is to have this site as a single location where you will be able to find Navy IT related information. As soon as the site is live you will be able to find:<br />
<br />
-BIBS (<span style="font-size: x-small;">unclass only</span>)<br />
-Community made Study Guides<br />
-Updates on the IT rate<br />
-Helpful links<br />
<br />
And anything more I can add to make this site thrive.<br />
<br />
If you have any suggestions please send them to <a href="mailto:admin@intzbz.com">admin@intzbz.com</a> or put them in the comments bellow.</div>
Nick IT Nitehttp://www.blogger.com/profile/03504576369465875197noreply@blogger.com2