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	<title>Zajíc v pytli &#187; sixxs</title>
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		<title>České IPv6 alokace</title>
		<link>http://zajic.v.pytli.cz/2008/07/15/ceske-ipv6-alokace/</link>
		<comments>http://zajic.v.pytli.cz/2008/07/15/ceske-ipv6-alokace/#comments</comments>
		<pubDate>Tue, 15 Jul 2008 07:23:56 +0000</pubDate>
		<dc:creator>zajDee</dc:creator>
				<category><![CDATA[IPv6]]></category>
		<category><![CDATA[alokace]]></category>
		<category><![CDATA[poskytovatelé]]></category>
		<category><![CDATA[prefix]]></category>
		<category><![CDATA[ripe]]></category>
		<category><![CDATA[sixxs]]></category>

		<guid isPermaLink="false">http://zajic.v.pytli.cz/?p=7</guid>
		<description><![CDATA[
<p>V tomto příspěvku si projdeme IPv6 adresy alokované českým
poskytovatelům. Allocated inet6num netname rDNS Advertised
20061011 2001­:678:1::/48 D-NS-NIC-CZ Yes Yes 20010521 2001­:718::/35
CZ-TEN-34–20010521 Yes Yes 20021024 2001­:718:2000::/35 CZ-TEN-34–20010521
Yes Yes 20021024 2001­:718:4000::/34 CZ-TEN-34–20010521 Yes Yes
20021024 2001­:718:8000::/33 CZ-TEN-34–20010521 Yes Yes
20030203 2001­:7f8:14::/48 NIX-CZ-NET-IPv6–20030203 Yes No
20030205 2001­:ae8::/32 CZ-IPEXNET-20030205 Yes Yes 20030206 2001­:af0::/32
CZ-GTS-20030211 Yes Yes 20030314 […]</p>
]]></description>
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<p>V tomto příspěvku si projdeme IPv6 adresy alokované českým
poskytovatelům.</p>
<span id="more-7"></span>
<table border="0" cellspacing="0" frame="void" rules="none">
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		<col width="81" />
		<col width="137" />
		<col width="212" />
		<col width="45" />
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	<tbody>
		<tr>
			<td style="border: 1px solid #000000;" width="81" height="17"
			align="center"><strong>Allocated</strong></td>

			<td style="border: 1px solid #000000;" width="137"
			align="left"><strong>inet6num</strong></td>

			<td style="border: 1px solid #000000;" width="212"
			align="left"><strong>netname</strong></td>

			<td style="border: 1px solid #000000;" width="45"
			align="center"><strong>rDNS</strong></td>

			<td style="border: 1px solid #000000;" width="82"
			align="center"><strong>Advertised</strong></td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20061011</td>

			<td style="border: 1px solid #000000;" align="left">2001:678:1::/48</td>

			<td style="border: 1px solid #000000;" align="left">D-NS-NIC-CZ</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20010521</td>

			<td style="border: 1px solid #000000;" align="left">2001:718::/35</td>

			<td style="border: 1px solid #000000;" align="left">CZ-TEN-34–20010521</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20021024</td>

			<td style="border: 1px solid #000000;" align="left">2001:718:2000::/35</td>

			<td style="border: 1px solid #000000;" align="left">CZ-TEN-34–20010521</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20021024</td>

			<td style="border: 1px solid #000000;" align="left">2001:718:4000::/34</td>

			<td style="border: 1px solid #000000;" align="left">CZ-TEN-34–20010521</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20021024</td>

			<td style="border: 1px solid #000000;" align="left">2001:718:8000::/33</td>

			<td style="border: 1px solid #000000;" align="left">CZ-TEN-34–20010521</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20030203</td>

			<td style="border: 1px solid #000000;" align="left">2001:7f8:14::/48</td>

			<td style="border: 1px solid #000000;"
			align="left">NIX-CZ-NET-IPv6–20030203</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">No</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20030205</td>

			<td style="border: 1px solid #000000;" align="left">2001:ae8::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-IPEXNET-20030205</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20030206</td>

			<td style="border: 1px solid #000000;" align="left">2001:af0::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-GTS-20030211</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20030314</td>

			<td style="border: 1px solid #000000;" align="left">2001:b80::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-PRAGONET-20030314</td>

			<td style="border: 1px solid #000000;" align="center">No</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20030620</td>

			<td style="border: 1px solid #000000;" align="left">2001:1488::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-NIC-20030620</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

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			<td style="border: 1px solid #000000;" height="17" align="center">20030717</td>

			<td style="border: 1px solid #000000;" align="left">2001:1508::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-VOL-20030717</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

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			<td style="border: 1px solid #000000;" height="17" align="center">20030724</td>

			<td style="border: 1px solid #000000;" align="left">2001:1528::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-CASABLANCA-20030724</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20070720</td>

			<td style="border: 1px solid #000000;" align="left">2001:1568::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-WEB4U-20070720</td>

			<td style="border: 1px solid #000000;" align="center">No</td>

			<td style="border: 1px solid #000000;" align="center">No</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20040213</td>

			<td style="border: 1px solid #000000;" align="left">2001:1a48::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-CDT-20040213</td>

			<td style="border: 1px solid #000000;" align="center">No</td>

			<td style="border: 1px solid #000000;" align="center">No</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20040323</td>

			<td style="border: 1px solid #000000;" align="left">2001:1ab0::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-IGNUM-20040323</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20040407</td>

			<td style="border: 1px solid #000000;" align="left">2001:1ae8::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-RADIOMOBIL-20040407</td>

			<td style="border: 1px solid #000000;" align="center">No</td>

			<td style="border: 1px solid #000000;" align="center">No</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20041118</td>

			<td style="border: 1px solid #000000;" align="left">2001:41d8::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-EUROTEL-20041118</td>

			<td style="border: 1px solid #000000;" align="center">No</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20050623</td>

			<td style="border: 1px solid #000000;" align="left">2001:4cc8::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-NETBOX-20050623</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20051214</td>

			<td style="border: 1px solid #000000;" align="left">2001:4de8::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-INWAY-20051214</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20060214</td>

			<td style="border: 1px solid #000000;" align="left">2a01:28::/32</td>

			<td style="border: 1px solid #000000;"
			align="left">CZ-SUPERNETWORK-20060214</td>

			<td style="border: 1px solid #000000;" align="center">No</td>

			<td style="border: 1px solid #000000;" align="center">No</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20060714</td>

			<td style="border: 1px solid #000000;" align="left">2a01:168::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-HKFREE-20060714</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20070809</td>

			<td style="border: 1px solid #000000;" align="left">2a01:430::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-MASTER-20070809</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20070828</td>

			<td style="border: 1px solid #000000;" align="left">2a01:490::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-KLFREE-20070828</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20071015</td>

			<td style="border: 1px solid #000000;" align="left">2a01:510::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-IJC-20071015</td>

			<td style="border: 1px solid #000000;" align="center">No</td>

			<td style="border: 1px solid #000000;" align="center">No</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20071023</td>

			<td style="border: 1px solid #000000;" align="left">2a01:538::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-CZ-20071023</td>

			<td style="border: 1px solid #000000;" align="center">No</td>

			<td style="border: 1px solid #000000;" align="center">No</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20071109</td>

			<td style="border: 1px solid #000000;" align="left">2a01:5e0::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-SLOANE-20071109</td>

			<td style="border: 1px solid #000000;" align="center">No</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20071113</td>

			<td style="border: 1px solid #000000;" align="left">2a01:5f0::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-COOLHOUSING-20071113</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20080214</td>

			<td style="border: 1px solid #000000;" align="left">2a02:38::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-NIX-20080214</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20080306</td>

			<td style="border: 1px solid #000000;" align="left">2a02:128::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-ALFATELECOM-20080306</td>

			<td style="border: 1px solid #000000;" align="center">No</td>

			<td style="border: 1px solid #000000;" align="center">No</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20080325</td>

			<td style="border: 1px solid #000000;" align="left">2a02:1d0::/32</td>

			<td style="border: 1px solid #000000;" align="left">CS-VISUAL-20080325</td>

			<td style="border: 1px solid #000000;" align="center">No</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20080327</td>

			<td style="border: 1px solid #000000;" align="left">2a02:1f0::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-MIRAMO-20080327</td>

			<td style="border: 1px solid #000000;" align="center">No</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20080509</td>

			<td style="border: 1px solid #000000;" align="left">2a02:350::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-CL-NET-20080509</td>

			<td style="border: 1px solid #000000;" align="center">No</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20080521</td>

			<td style="border: 1px solid #000000;" align="left">2a02:3c0::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-NETAIR-20080521</td>

			<td style="border: 1px solid #000000;" align="center">Yes</td>

			<td style="border: 1px solid #000000;" align="center">No</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20080610</td>

			<td style="border: 1px solid #000000;" align="left">2a02:4a8::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-GLOBE-20080610</td>

			<td style="border: 1px solid #000000;" align="center">No</td>

			<td style="border: 1px solid #000000;" align="center">No</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20080620</td>

			<td style="border: 1px solid #000000;" align="left">2a02:4f0::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-MAFRA-CZ-20080620</td>

			<td style="border: 1px solid #000000;" align="center">No</td>

			<td style="border: 1px solid #000000;" align="center">No</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20080701</td>

			<td style="border: 1px solid #000000;" align="left">2a02:570::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-HA-VEL-20080701</td>

			<td style="border: 1px solid #000000;" align="center">No</td>

			<td style="border: 1px solid #000000;" align="center">No</td>
		</tr>

		<tr>
			<td style="border: 1px solid #000000;" height="17" align="center">20080704</td>

			<td style="border: 1px solid #000000;" align="left">2a02:598::/32</td>

			<td style="border: 1px solid #000000;" align="left">CZ-SEZNAM-20080704</td>

			<td style="border: 1px solid #000000;" align="center">No</td>

			<td style="border: 1px solid #000000;" align="center">No</td>
		</tr>
	</tbody>
</table>
 Jde o seznam, který lze získat oficiální cestou od RIPE. Aktualizováno
dnes. Jak je vidět, na konci června a začátku července bylo v této
oblasti obzvláště úrodno, od té doby je ale opět ticho po pěšině.
<p>Tabulka zjednodušeně řečeno zobrazuje všechny prefixy alokované
českým poskytovatelům (tedy těm, kteří mají v Čechách svůj vlastní
autonomní systém, takové Tiscali se svým nadnárodním ASem v seznamu tedy
chybí). K seznamu prefixů je jako bonus přidáno datum alokace a víceméně
praktická informace, zda poskytovatel má na globálních reverzních DNS
serverech zadaný záznam pro reverzní DNS, a pak informace, zda je alokovaný
prefix vidět v globálních routovacích tabulkách, tedy zda jej poskytovatel
oznamuje do světa.</p>

<p>Když se podíváme na tabulku blíže, zjistíme, že stav sice není
uspokojivý, ale ani vysloveně špatný. Na webu SixXS.net se dá najít <a
href="http://www.sixxs.net/tools/grh/dfp/">tabulka</a>, která přehledně
zobrazuje seznam zemí, počet jim alokovaných IPv6 prefixů a počet prefixů,
které byly vidět v globálních routovacích tabulkách. Podle této tabulky
jsme šestnáctí na světě v počtu přidělených prefixů a jedenáctí
v počtu živých prefixů, jak je zaznamenal jejich monitorovací
nástroj.</p>

<p>Pokud si rozkliknete Českou republiku, zjistíte, že zmíněná tabulka
zároveň dává přehled o stavu peeringu jednotlivých operátorů. Pokud je
pozadí řádku bílé, byl prefix operátora vidět ve všech kontrolních
bodech – takový poskytovatel vám je pravděpodobně schopen už dnes
nabídnout kvalitní IPv6 konektivitu.</p>
Ještě dvě technické poznámky:
<ul>
	<li>v tabulce je operátor „InWay, a.s.“, ovšem prefix 2001:4de8::/32 dnes
	patří Dial Telecomu. Hanba jim, že i po letech od převzetí InWaye stále
	nemají aktualizovaná data v RIPE</li>

	<li>prefix operátora CE Com, s.r.o. dnes v RIPE neexistuje, jedná se tedy
	pravděpodobně o nějaký pozůstatek z minulosti</li>
</ul>
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