# TCP/IP

<table border="1" class="align-center" id="bkmrk-cidr-adresses-machin" style="border-collapse: collapse; width: 100%; height: 928px;"><tbody><tr style="height: 29px;"><td style="width: 25%; height: 29px;">CIDR</td><td style="width: 25%; height: 29px;">Adresses</td><td style="width: 25%; height: 29px;">Machines</td><td style="width: 25%; height: 29px;">Masques</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/30</td><td style="width: 25%; height: 29px;">4</td><td style="width: 25%; height: 29px;">2</td><td style="width: 25%; height: 29px;">255.255.255.252</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/29</td><td style="width: 25%; height: 29px;">8</td><td style="width: 25%; height: 29px;">6</td><td style="width: 25%; height: 29px;">255.255.255.248</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/28</td><td style="width: 25%; height: 29px;">16</td><td style="width: 25%; height: 29px;">14</td><td style="width: 25%; height: 29px;">255.255.255.240</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/27</td><td style="width: 25%; height: 29px;">32</td><td style="width: 25%; height: 29px;">30</td><td style="width: 25%; height: 29px;">255.255.255.224</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/26</td><td style="width: 25%; height: 29px;">64</td><td style="width: 25%; height: 29px;">62</td><td style="width: 25%; height: 29px;">255.255.255.192</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/25</td><td style="width: 25%; height: 29px;">128</td><td style="width: 25%; height: 29px;">126</td><td style="width: 25%; height: 29px;">255.255.255.128</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/24</td><td style="width: 25%; height: 29px;">256</td><td style="width: 25%; height: 29px;">254</td><td style="width: 25%; height: 29px;">255.255.255.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/23</td><td style="width: 25%; height: 29px;">512</td><td style="width: 25%; height: 29px;">510</td><td style="width: 25%; height: 29px;">255.255.254.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/22</td><td style="width: 25%; height: 29px;">1 024</td><td style="width: 25%; height: 29px;">1 022</td><td style="width: 25%; height: 29px;">255.255.252.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/21</td><td style="width: 25%; height: 29px;">2 048</td><td style="width: 25%; height: 29px;">2 046</td><td style="width: 25%; height: 29px;">255.255.248.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/20</td><td style="width: 25%; height: 29px;">4 096</td><td style="width: 25%; height: 29px;">4 094</td><td style="width: 25%; height: 29px;">255.255.240.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/19</td><td style="width: 25%; height: 29px;">8 192</td><td style="width: 25%; height: 29px;">8 190</td><td style="width: 25%; height: 29px;">255.255.224.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/18</td><td style="width: 25%; height: 29px;">16 384</td><td style="width: 25%; height: 29px;">16 382</td><td style="width: 25%; height: 29px;">255.255.192.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/17</td><td style="width: 25%; height: 29px;">32 768</td><td style="width: 25%; height: 29px;">32 766</td><td style="width: 25%; height: 29px;">255.255.128.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/16</td><td style="width: 25%; height: 29px;">65 536</td><td style="width: 25%; height: 29px;">65 534</td><td style="width: 25%; height: 29px;">255.255.0.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/15</td><td style="width: 25%; height: 29px;">131 072</td><td style="width: 25%; height: 29px;">131 070</td><td style="width: 25%; height: 29px;">255.254.0.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/14</td><td style="width: 25%; height: 29px;">262 144</td><td style="width: 25%; height: 29px;">262 142</td><td style="width: 25%; height: 29px;">255.252.0.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/13</td><td style="width: 25%; height: 29px;">524 288</td><td style="width: 25%; height: 29px;">524 286</td><td style="width: 25%; height: 29px;">255.248.0.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/12</td><td style="width: 25%; height: 29px;">1 048 576</td><td style="width: 25%; height: 29px;">1 048 574</td><td style="width: 25%; height: 29px;">255.240.0.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/11</td><td style="width: 25%; height: 29px;">2 097 152</td><td style="width: 25%; height: 29px;">2 097 150</td><td style="width: 25%; height: 29px;">255.224.0.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/10</td><td style="width: 25%; height: 29px;">4 194 304</td><td style="width: 25%; height: 29px;">4 194 302</td><td style="width: 25%; height: 29px;">255.192.0.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/9</td><td style="width: 25%; height: 29px;">8 388 608</td><td style="width: 25%; height: 29px;">8 388 606</td><td style="width: 25%; height: 29px;">255.128.0.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/8</td><td style="width: 25%; height: 29px;">16 777 216</td><td style="width: 25%; height: 29px;">16 777 214</td><td style="width: 25%; height: 29px;">255.0.0.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/7</td><td style="width: 25%; height: 29px;">33 554 432</td><td style="width: 25%; height: 29px;">33 554 430</td><td style="width: 25%; height: 29px;">254.0.0.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/6</td><td style="width: 25%; height: 29px;">67 108 864</td><td style="width: 25%; height: 29px;">67 108 862</td><td style="width: 25%; height: 29px;">252.0.0.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/5</td><td style="width: 25%; height: 29px;">134 217 728</td><td style="width: 25%; height: 29px;">134 217 726</td><td style="width: 25%; height: 29px;">248.0.0.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/4</td><td style="width: 25%; height: 29px;">268 435 456</td><td style="width: 25%; height: 29px;">268 435 454</td><td style="width: 25%; height: 29px;">240.0.0.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/3</td><td style="width: 25%; height: 29px;">536 870 912</td><td style="width: 25%; height: 29px;">536 870 910</td><td style="width: 25%; height: 29px;">224.0.0.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/2</td><td style="width: 25%; height: 29px;">1 073 741 824</td><td style="width: 25%; height: 29px;">1 073 741 822</td><td style="width: 25%; height: 29px;">192.0.0.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/1</td><td style="width: 25%; height: 29px;">2 147 483 648</td><td style="width: 25%; height: 29px;">2 147 483 646</td><td style="width: 25%; height: 29px;">128.0.0.0</td></tr><tr style="height: 29px;"><td style="width: 25%; height: 29px;">/0</td><td style="width: 25%; height: 29px;">4 294 967 296</td><td style="width: 25%; height: 29px;">4 294 967 294</td><td style="width: 25%; height: 29px;">0.0.0.0</td></tr></tbody></table>

IEEE 802 est un comité de l'IEEE (Institute of Electrical and Electronics Engineers) qui décrit une famille de normes relatives aux réseaux locaux (LAN) :

- 802.11 -&gt; WIFI
- 802.1q -&gt; VLAN
- 802.1p -&gt; QOS ( FAIBLE | 12034567 | ÉLEVÉE )
- 802.ad -&gt; Agrégation de liens

FLAGS :

SEW --&gt; Problème de flux FIREWALL a reconfig