IPv4 and IPv6 In a Single Network Segment

I need someone to back me up, or prove me wrong, in regard to the comments I've made some time ago. Here is the original thread:

dual-stack ipv6/ipv4 on localhost

Basically, I'd like to know if we can have 2 different kinds of IP addresses (IPv4 and IPv6) r开发者_JAVA百科unning on the same network segment WITHOUT any address translation.

Thanks in advance!

Without any problems: IPv4 and IPv6 can share a transport layer such as Ethernet without causing problems. Furthermore, there are many systems that can support both v4 and v6 protocol stacks concurrently.

Of course, to get any communications going between IPv4 and IPv6 nodes, one must go through a gateway (e.g. 4to6).