<div dir="ltr"><p style="margin:0.5em 0px;color:rgb(32,33,34);font-family:sans-serif;font-size:14px">The <a href="https://en.wikipedia.org/wiki/Internet_Engineering_Task_Force" title="Internet Engineering Task Force" style="text-decoration-line:none;color:rgb(11,0,128);background:none">Internet Engineering Task Force</a> (IETF) has directed the <a href="https://en.wikipedia.org/wiki/Internet_Assigned_Numbers_Authority" title="Internet Assigned Numbers Authority" style="text-decoration-line:none;color:rgb(11,0,128);background:none">Internet Assigned Numbers Authority</a> (IANA) to reserve the following IPv4 address ranges for private networks:<sup id="gmail-cite_ref-rfc1918_1-1" class="gmail-reference" style="line-height:1;unicode-bidi:isolate;white-space:nowrap;font-size:11.2px"><a href="https://en.wikipedia.org/wiki/Private_network#cite_note-rfc1918-1" style="text-decoration-line:none;color:rgb(11,0,128);background:none">[1]</a></sup><sup class="gmail-reference" style="line-height:1;unicode-bidi:isolate;white-space:nowrap;font-size:11.2px">(p4)</sup></p><table class="gmail-wikitable" style="font-size:14px;background-color:rgb(248,249,250);color:rgb(32,33,34);margin:1em 0px;border:1px solid rgb(162,169,177);border-collapse:collapse;font-family:sans-serif"><tbody><tr><th style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em;background-color:rgb(234,236,240);text-align:center">RFC1918 name</th><th style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em;background-color:rgb(234,236,240);text-align:center">IP address range</th><th style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em;background-color:rgb(234,236,240);text-align:center">Number of addresses</th><th style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em;background-color:rgb(234,236,240);text-align:center">Largest <a href="https://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing" title="Classless Inter-Domain Routing" style="text-decoration-line:none;color:rgb(11,0,128);background:none">CIDR</a> block (subnet mask)</th><th style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em;background-color:rgb(234,236,240);text-align:center">Host ID size</th><th style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em;background-color:rgb(234,236,240);text-align:center">Mask bits</th><th style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em;background-color:rgb(234,236,240);text-align:center"><i><a href="https://en.wikipedia.org/wiki/Classful_network" title="Classful network" style="text-decoration-line:none;color:rgb(11,0,128);background:none">Classful</a></i> description<sup id="gmail-cite_ref-4" class="gmail-reference" style="line-height:1;unicode-bidi:isolate;white-space:nowrap;font-weight:normal;font-size:11.2px"><a href="https://en.wikipedia.org/wiki/Private_network#cite_note-4" style="text-decoration-line:none;color:rgb(11,0,128);background:none">[Note 1]</a></sup></th></tr><tr><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em">24-bit block</td><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em">10.0.0.0 – 10.255.255.255</td><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em"><span style="white-space:nowrap">16<span style="margin-left:0.25em">777</span><span style="margin-left:0.25em">216</span></span></td><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em"><a href="http://10.0.0.0/8">10.0.0.0/8</a> (255.0.0.0)</td><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em">24 bits</td><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em">8 bits</td><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em">single class A network</td></tr><tr><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em">20-bit block</td><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em">172.16.0.0 – 172.31.255.255</td><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em"><span style="white-space:nowrap">1<span style="margin-left:0.25em">048</span><span style="margin-left:0.25em">576</span></span></td><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em"><a href="http://172.16.0.0/12">172.16.0.0/12</a> (255.240.0.0)</td><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em">20 bits</td><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em">12 bits</td><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em">16 contiguous class B networks</td></tr><tr><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em">16-bit block</td><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em">192.168.0.0 – 192.168.255.255</td><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em"><span style="white-space:nowrap">65<span style="margin-left:0.25em">536</span></span></td><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em"><a href="http://192.168.0.0/16">192.168.0.0/16</a> (255.255.0.0)</td><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em">16 bits</td><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em">16 bits</td><td style="border:1px solid rgb(162,169,177);padding:0.2em 0.4em">256 contiguous class C networks</td></tr></tbody></table><p style="margin:0.5em 0px;color:rgb(32,33,34);font-family:sans-serif;font-size:14px">In practice, it is common to subdivide these ranges into smaller subnets.</p><p style="margin:0.5em 0px;color:rgb(32,33,34);font-family:sans-serif;font-size:14px"><br></p><p style="margin:0.5em 0px;color:rgb(32,33,34);font-family:sans-serif;font-size:14px">192.168.x.x is a private subnet </p><p style="margin:0.5em 0px;color:rgb(32,33,34);font-family:sans-serif;font-size:14px">192.83.x.x in a public subnet</p><p style="margin:0.5em 0px;color:rgb(32,33,34);font-family:sans-serif;font-size:14px"><br></p><p style="margin:0.5em 0px;color:rgb(32,33,34);font-family:sans-serif;font-size:14px"><br></p></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Le dim. 20 déc. 2020 à 11:37, ARS W5OMR <<a href="mailto:ars.w5omr@gmail.com">ars.w5omr@gmail.com</a>> a écrit :<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-size:xx-large">just saw this in my konsole...<br><font size="2">[Dec 20 09:37:34] NOTICE[585]: chan_iax2.c:9712 socket_process: Registration of '29655' rejected: 'Password incorrect' from: '192.83.199.4'</font><br></div><br><div style="font-size:xx-large" class="gmail_default">I know 192.xx.xxx is an internal address, so... what the hell?</div><br>-- <br><div dir="ltr"><br>73 = Best Regards,<br>-Geoff/W5OMR</div></div>
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