nanog mailing list archives
Re: IPv6 Deployment for the LAN
From: William Herrin <herrin-nanog () dirtside com>
Date: Sat, 17 Oct 2009 21:28:13 -0400
On Sat, Oct 17, 2009 at 8:55 PM, Ray Soucy <rps () maine edu> wrote:
As it turns out delivering IPv6 to the edge in an academic setting has been a challenge. Common wisdom says to rely on SLAAC for IPv6 addressing, and in a perfect world it would make sense.
Ray, Common wisdom says that?
Our current IPv6 allocation schema provides for a 64-bit prefix for each network. Unfortunately, this enables SLAAC; yes, you can suppress the prefix advertisement, and set the M and O flags, but that only prevents hosts that have proper implementations of IPv6 from making use of SLAAC. The concern here is that older hosts with less than OK implementations will still enable IPv6 without regard for the stability and security concerns associated with IPv6.
I thought someone had to respond to router solicitations for stateless autoconfig of global scope addresses to happen. On Linux you just don't run the radvd. On Cisco I think it's something like "ipv6 nd suppress-ra" in the interface config. Does that fail to prevent stateless autoconfig? Or is there a problem with the operation of DHCPv6 if router advertisements aren't happening from the router? Regards, Bill Herrin -- William D. Herrin ................ herrin () dirtside com bill () herrin us 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/> Falls Church, VA 22042-3004
Current thread:
- IPv6 Deployment for the LAN Ray Soucy (Oct 17)
- Re: IPv6 Deployment for the LAN William Herrin (Oct 17)
- Re: IPv6 Deployment for the LAN Ray Soucy (Oct 17)
- Re: IPv6 Deployment for the LAN Nathan Ward (Oct 17)
- Re: IPv6 Deployment for the LAN Mikael Abrahamsson (Oct 17)
- Re: IPv6 Deployment for the LAN Clue Store (Oct 17)
- Re: IPv6 Deployment for the LAN Andy Davidson (Oct 18)
- Re: IPv6 Deployment for the LAN Mark Smith (Oct 18)
- Re: IPv6 Deployment for the LAN Nathan Ward (Oct 18)
- Re: IPv6 Deployment for the LAN Chuck Anderson (Oct 18)
- Re: IPv6 Deployment for the LAN Nathan Ward (Oct 18)
- RE: IPv6 Deployment for the LAN TJ (Oct 18)
- Re: IPv6 Deployment for the LAN Mark Smith (Oct 18)
- Re: IPv6 Deployment for the LAN William Herrin (Oct 17)