Extron Electronics VN-Matrix 200 Series - Manual (Page 101)

If you get the message...
Reply from 208.132.180.48: Destination host unreachable.
…this indicates that the IP address of the computer is not in the same class (or subnet) as
that of the device being “pinged”. Check that the subNet mask on both the computer
and the device are set to the same value (see “
Subnet Mask ”). Also check that both
IP addresses are within the correct range for the chosen class and are compatible (see
“
Choosing IP Addresses ”).
VN-Matrix 200 Series • IP Addressing 96