Cisco IOS beta with IPv6 support?

[srg@2alpha.com (Spencer Garrett)]

> From: "Amer Mallah" <snare@greenmount.org>
> Date: Wed, 5 Apr 2000 22:20:22 -0400
> 
> Has anyone tried this on the 25xx series routers (or any router for that
> matter)? Does it support both IPv4 and IPv6? Is it stable?

I tried to load it about 10 days ago, but the checksum failed, so I
couldn't run it.  (And, yes, I downloaded it multiple times in the
same way that I download other IOS images that work...)

I remember reading somewhere that IPv6 support was planned for
IOS 12.1, but that's out now and the support isn't there.

Spencer