User Manual
Table Of Contents
- NBG-418N v2
- User’s Guide
- Introduction
- The Web Configurator
- Connection Wizard
- Modes
- Tutorials
- 5.1 Overview
- 5.2 How to Connect to the Internet from an AP
- 5.3 Configure Wireless Security Using WPS on both your NBG-418N v2 and Wireless Client
- 5.4 Enable and Configure Wireless Security without WPS on your NBG-418N v2
- 5.5 Using Multiple SSIDs on the NBG-418N v2
- 5.6 Installing UPnP in Windows 7 Example
- 5.7 Using Bandwidth Management on the NBG-418N v2
- Technical Reference
- Wireless LAN
- WAN
- LAN
- DHCP Server
- Network Address Translation
- Dynamic DNS
- Static Route
- Firewall
- Content Filter
- Remote Management
- Universal Plug-and-Play (UPnP)
- Bandwidth MGMT
- System
- Logs
- Tools
- Sys OP Mode
- Language
- Troubleshooting
- Customer Support
- IP Addresses and Subnetting
- Pop-up Windows, JavaScripts and Java Permissions
- Setting Up Your Computer’s IP Address
- Wireless LANs
- Common Services
- Legal Information
- Index
Appendix B IP Addresses and Subnetting
NBG-418N v2 User’s Guide
163
Fig ure 119 Subnetting Example: Before Subnetting
You can “borrow” one of the host ID bits to divide the network 192.168.1.0 into two separate sub-
networks. The subnet mask is now 25 bits (255.255.255.128 or /25).
The “borrowed” host ID bit can have a value of either 0 or 1, allowing two subnets; 192.168.1.0 /25 and
192.168.1.128 /25.
The following figure shows the company network after subnetting. There are now two sub-networks, A
and B.
Fig ure 120 Subnetting Example: After Subnetting
In a 25-bit subnet the host ID has 7 bits, so each sub-network has a maximum of 2
7
– 2 or 126 possible
hosts (a host ID of all zeroes is the subnet’s address itself, all ones is the subnet’s broadcast address).