Neighbors in the ND Cache are Not Translated
Focus
Focus

Neighbors in the ND Cache are Not Translated

Table of Contents

Neighbors in the ND Cache are Not Translated

In our example, there are hosts behind the firewall with host identifiers :1, :2, and :3. If the prefixes of those hosts are translated to a prefix that exists beyond the firewall, and if those devices also have host identifiers :1, :2, and :3, because the host identifier portion of the address remains unchanged, the resulting translated address would belong to the existing device, and an addressing conflict would result. In order to avoid a conflict with overlapping host identifiers, NPTv6 does not translate addresses that it finds it its ND cache.