Reference Guide for the Model RT328 and Model RH348 ISDN Routers
Note: The number 192.68.135.127 is not assigned because it is the broadcast address of the first subnet. And 192.68.135.128 is not assigned because it is the network address of the second subnet.
Table 1-1 lists the additional subnet mask bits in dotted-decimal notation. To use the table, write down the original class netmask and replace the 0 value octets with the dotted-decimal value of the additional subnet bits. For instance, to partition your Class C network 204.247.203.0 with subnet mask 255.255.255.0 into 16 subnets (4 bits), the new subnet mask becomes 255.255.255.240.
Table 1-1. Netmask Notation Translation Table for One Octet
Number of Bits | Dotted-Decimal Value |
1128
2192
3224
4240
5248
6252
7254
8255
