Where to buy Internet IP addresses

TJ trejrco at gmail.com
Mon May 4 20:26:45 CDT 2009

>-----Original Message-----
>From: Ricky Beam [mailto:jfbeam at gmail.com]
>Sent: Monday, May 04, 2009 6:38 PM
>To: nanog list
>Subject: Re: Where to buy Internet IP addresses
>On Mon, 04 May 2009 18:01:32 -0400, Jack Bates <jbates at brightok.net> wrote:
>> Given there is no CLASS, but just a separation of network and host,
>> I'd hate to compare it to classful routing. They probably would have
>> been happy with a /96 network except for stateless autoconfig, which
>> is quite nice for some stuff actually.
>Ok, calling it "classful routing" might be a little melodramatic.
>I would love to be able to set interfaces on my cisco hardware to /96's,
>it's not allowed.  Autoconfig screws that up.  Even if it's not used,
>forced to live with it.  Linux, BSD, etc. don't care. (and the instant they
>I can remove that stupid code.)

Actually, they will - you can set them to any arbitrary value between 1 and
128 (inclusive), atleast on every piece of gear I've tried to use.

>> I've not tried every vendor out there, but I've noticed some
>> implementations handle /127 just fine from a routing perspective.
>So far, Cisco's gear is the only IPv6 routers I've messed with.  And they
>will not let you set an interface to anything smaller than a /64.
>Loopbacks have slightly different rules, but in my case (IPv6 tunnels) that
>fact hasn't proven very useful.

See above.
Maybe true on some gear, or some old IOS, or when using the auto-config key
word ... ?


More information about the NANOG mailing list