In Lab 4, task 1.5, I understand why static nat is needed for each subnet such as 150.1.6.6 and 54.0.0.0 beyond Context A's directly connected inside interface.

But, I don't understand why we have to have static NAT's for the directly connectly subnets behind ContextA and ContextB ie 163.1.136.0 and 204.12.1.0 ??

And, more importantly, if they're really needed in Lab 4, then why weren't they needed for this task 1.5 in Lab 2 ???

Thanks, Tim