HP 10:10 LAN Bridge MB Installation And Reference Manual page 82

The IP address format is X.X.X.X, where each X is an integer between 1 and 255. The integers
are separated by decimal points. For a given network with its own class C addressing scheme,
the first three integers of each address must be the same. The fourth integer must be unique for
each addressed device. (Do not use 0 or 255 in the fourth position. They are reserved integers.)
For three bridges and an HP network management station on the network, the class C addresses
might be:
management station
first bridge
second bridge
third bridge
...
See "IPconfig" in chapter 3 for the IP configuration procedures and descriptions of the
parameters.
D-4 Network Addressing
192.1.1.1
192.1.1.10
192.1.1.11
192.1.1.12
...