ZyXEL Communications 128L user manual LAN-to-LAN Application, 46 TCP/IP Configuration

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.

Number of Bits	Dot Decimal
1	128
2	192
3	224
4	240
5	248
6	252
7	254
8	255

LAN-to-LAN Application

A typical LAN-to-LAN application is to use your Prestige to call from a branch office to the headquarters, as depicted in the following diagram.

Figure 6-1 LAN-to-LAN Application

For the branch office, you need to configure a Remote Node in order to dial out to the headquarters. Additionally, you may also need to

46 TCP/IP Configuration