For selecting the host addresses (and their associated subnet masks), make the proper masks that provide enough host bits, which you should be able to do. As for the serial connection for example, all you need is a 30-bit mask (255.255.255.252).
By the way, is this a testing or production environment? Testing environments tend to use default values, while production you may end up tweaking settings (like setting the bandwidth values for IGRP).
By the way, is this a testing or production environment? Testing environments tend to use default values, while production you may end up tweaking settings (like setting the bandwidth values for IGRP).
