ZyXEL Communications SBG5500 Series User Manual page 15

Chapter 1 Introducing the SBG
Computers can connect to the SBG's LAN ports.
Figure 1 SBG's Internet Access Application: ADSL/VDSL
SBG
Figure 2 SBG's Internet Access Application: ADSL
SBG
Figure 3 SBG5500's Internet Access Application: 3G/4G WAN Backup
SBG
You can also configure IP filtering on the SBG for secure Internet access. When the IP filter is on, all
incoming traffic from the Internet to your network is blocked by default unless it is initiated from your
network. This means that probes from the outside to your network are not allowed, but you can safely
browse the Internet and download files.
SBG5500/3310 Series User's Guide
15