Chapter 1 Introducing the Zyxel Device
EX5501-B0 / AX7501-B0 / PX7501-B0 User’s Guide
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Figure 1
Zyxel Device’s Internet Access Application
You can also configure Firewall on the Zyxel Device for secure Internet access. When the Firewall 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.
Connect the WAN port to the broadband modem or router. This way, you can access the Internet via
an Ethernet connection and use the QoS, Firewall and parental control functions on the Zyxel Device.
Figure 2
Zyxel Device’s Internet Access Application: Ethernet WAN
1.2.2 Dual-Band WiFi
By default, WiFi is enabled on the Zyxel Device. IEEE 802.11a/b/g/n/ac/ax compliant clients can
wirelessly connect to the Zyxel Device to access network resources.
The Zyxel Device is a dual-band gateway that can use both 2.4G and 5G networks at the same time.
You could use the 2.4 GHz band for regular Internet surfing and downloading while using the 5 GHz
