nanog mailing list archives
Re: ISP customer assignments
From: Leo Bicknell <bicknell () ufp org>
Date: Tue, 13 Oct 2009 18:24:09 -0700
In a message written on Tue, Oct 13, 2009 at 08:14:40PM -0500, Chris Adams wrote:
I would expect you just assign static addresses to servers. Are there pros/cons to using /64 or something else there? If I'm statically assigning IP (and DNS, etc. servers) info, why would I not just configure the gateway there as well (especially if you just make all local router interfaces ::1)?
All of our servers are in binary coded hex. :) That is, if your IPv4 address is 10.12.3.187, your IPv6 address is A:B:C:D::187. The router is ::1, just as in IPv4, and servers have static routes. We still use /64's everywhere. You may want to use temporary (privacy) addresses outbound. You many want to allow a server to use EUI-64 to get an address while doing an install, or similar.
What about anycast-type addresses (e.g. DNS servers)? I route a few server IPv4 /32s around in my network; do you assign a /128, a /64 (with only one address in use), a /112, or something else?
/128's for loopbacks, anycast addreses, and similar here. Typically out of a loopback /64. -- Leo Bicknell - bicknell () ufp org - CCIE 3440 PGP keys at http://www.ufp.org/~bicknell/
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Current thread:
- Re: ISP customer assignments, (continued)
- Re: ISP customer assignments Joe Abley (Oct 13)
- Re: ISP customer assignments Marco Hogewoning (Oct 13)
- Re: ISP customer assignments Scott Morris (Oct 13)
- Re: ISP customer assignments Michael Dillon (Oct 13)
- Re: ISP customer assignments Chris Adams (Oct 13)
- Re: ISP customer assignments Cord MacLeod (Oct 13)
- Re: ISP customer assignments James Hess (Oct 13)
- Re: ISP customer assignments Kevin Loch (Oct 13)
- Re: ISP customer assignments Leo Bicknell (Oct 13)
- Re: ISP customer assignments Chris Adams (Oct 13)
- Re: ISP customer assignments Leo Bicknell (Oct 13)
- RE: ISP customer assignments TJ (Oct 13)
- Re: ISP customer assignments Nathan Ward (Oct 13)
- Re: ISP customer assignments Chris Adams (Oct 13)
- Re: ISP customer assignments Nathan Ward (Oct 13)
- Re: ISP customer assignments Michael Dillon (Oct 15)
- Re: ISP customer assignments Chris Adams (Oct 15)
- Re: ISP customer assignments Nathan Ward (Oct 15)
- Re: ISP customer assignments Dave Temkin (Oct 15)
- Re: ISP customer assignments Rob Evans (Oct 16)
- Re: ISP customer assignments William Herrin (Oct 15)