- returns a new network incremented by the increment each time it's
- iterated or when inc_fmt is called. The increment may be positive,
- negative or 0 (in which case the network is always the same).
+ returns a new network, its address part incremented by the increment
+ number of network sizes, each time it is iterated or when inc_fmt is called.
+ The increment may be positive, negative or 0
+ (in which case the network is always the same).
+
+ Both initial and subsequent IP address can have host bits set,
+ check the initial value before creating instance if needed.
+ String formatting is configurable via constructor argument.