physical ethernet network expands to the point where it has more than
254 nodes, it may be necessary to run two 8-bit subnets on the same
ethernet until such time as a new physical network can be added. In
-this case, the \fIsubnet\fR declarations for these two networks may be
+this case, the \fIsubnet\fR declarations for these two networks must be
enclosed in a \fIshared-network\fR declaration.
.PP
Some sites may have departments which have clients on more than one