<div dir="ltr">Mark,<div><br></div><div>To be accurate, ipv6 from APNIC is not $0.</div><div><br></div><div>If your IPv6 allocation exceeds the value of the IPv4 allocation, you will pay the greater of the two.</div><div><br>
</div><div>You get a LOT for that, but, still.</div></div><div class="gmail_extra"><br clear="all"><div><div dir="ltr"><div><br>...Skeeve</div><div><br></div><div><div><b style="font-size:13px;font-family:Calibri">Skeeve Stevens - </b><span style="font-size:13px;font-family:Calibri">eintellego Networks Pty Ltd</span></div>
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<br><br><div class="gmail_quote">On Thu, Jul 3, 2014 at 11:00 AM, Mark Andrews <span dir="ltr"><<a href="mailto:marka@isc.org" target="_blank">marka@isc.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
In message <<a href="mailto:A3FB5D9FD28C50429DF7692DC31054E606E47A67@DC1INTADCW8201.yieldbroker.com">A3FB5D9FD28C50429DF7692DC31054E606E47A67@DC1INTADCW8201.yieldbroker.com</a>>,<br>
Alex Samad - Yieldbroker writes:<br>
> > 2002:<ipv4>:: (6to4) is not recommended.<br>
><br>
> Care to explain why.<br>
><br>
> So you get a /48 without having to pay for it, you don't have to use it to =<br>
> do 6to4.<br>
<br>
If you are getting IPv4 address space from APNIC you can get IPv6<br>
address space for $0. You pay MAX(IPv4 cost, IPv6 cost). ARIN and<br>
RIPE have similar policies I believe.<br>
<br>
> The only issue I see is if you can advertise the /48, but that would be a p=<br>
> rocedural thing not a technical reason ... less there is something in the r=<br>
> fc... but I am thinking that would be strange.<br>
<br>
6to4 has lots of gotchas that regular IPv6 space does not have.<br>
<br>
Firstly you do not advertise more specifics. This is to prevent<br>
having to import the entire IPv4 routing space into IPv6 thereby<br>
effectively doubling the routing table.<br>
<br>
You have idiots that filter IPv4 in IPv6.<br>
<br>
You have firewalls that don't allow reply packets in. They can come from<br>
any IPv4 address not just the ones you send the encapsulated packets to.<br>
<br>
You are depending apon the good will of others to {de}encapsulate<br>
traffic. Some of these boxes have been known to get overloaded.<br>
<br>
> Alex<br>
><br>
<span class="HOEnZb"><font color="#888888">--<br>
Mark Andrews, ISC<br>
1 Seymour St., Dundas Valley, NSW 2117, Australia<br>
PHONE: +61 2 9871 4742 INTERNET: <a href="mailto:marka@isc.org">marka@isc.org</a><br>
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</font></span></blockquote></div><br></div>