nanog mailing list archives
Re: ISP customer assignments
From: Chris Adams <cmadams () hiwaay net>
Date: Tue, 13 Oct 2009 20:14:40 -0500
Once upon a time, Leo Bicknell <bicknell () ufp org> said:
2) Colon's separate 16 bit chunks in IPv6. /112's allow XXXX::1, XXXX::2 to be your IP's.
Yeah, this is what I forgot about. Makes sense now. Another (quite possibly dumb :-) ) few questions come to mind about IPv6 assignment: 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)? What about web-hosting type servers? Right now, I've got a group of servers in a common IPv4 subnet (maybe a /26), with a /24 or two routed to each server for hosted sites. What is the IPv6 equivalent? I can see a /64 for the common subnet, but what to route for aliased IPs for web hosts? It is kind of academic right now, since our hosting control panel software doesn't handle IPv6, but I certainly won't be putting 2^64 sites on a single server. Use a /112 here again as well? Use a /64 per server because I can? 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? -- Chris Adams <cmadams () hiwaay net> Systems and Network Administrator - HiWAAY Internet Services I don't speak for anybody but myself - that's enough trouble.
Current thread:
- Re: ISP customer assignments, (continued)
- Re: ISP customer assignments Matthew Petach (Oct 13)
- 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)