ZyXEL LTE7485-S905 User Guide - Page 83

Technical Reference, LABEL, DESCRIPTION

Page 83 highlights

Chapter 7 Home Networking Table 25 Network Settings > Home Networking > UPnP LABEL DESCRIPTION Internal Port This field displays the internal port number that identifies the service. Protocol This field displays the protocol of the NAT mapping rule. Choices are TCP or UDP. Apply Click Apply to save your changes. Cancel Click Cancel to restore your previously saved settings. 7.5 Technical Reference This section provides some technical background information about the topics covered in this chapter. LANs, WANs and the Zyxel Device The actual physical connection determines whether the Zyxel Device ports are LAN or WAN ports. There are two separate IP networks, one inside the LAN network and the other outside the WAN network as shown next. Figure 53 LAN and WAN IP Addresses Private IP Addresses Every machine on the Internet must have a unique address. If your networks are isolated from the Internet, for example, only between your two branch offices, you can assign any IP addresses to the hosts without problems. However, the Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of IP addresses specifically for private networks: • 10.0.0.0 - 10.255.255.255 • 172.16.0.0 - 172.31.255.255 • 192.168.0.0 - 192.168.255.255 You can obtain your IP address from the IANA, from an ISP or it can be assigned from a private network. If you belong to a small organization and your Internet access is through an ISP, the ISP can provide you LTE Series User's Guide 83

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Chapter 7 Home Networking
LTE Series User’s Guide
83
7.5
Technical Reference
This section provides some technical background information about the topics covered in this chapter.
LANs, WANs and the Zyxel Device
The actual physical connection determines whether the Zyxel Device ports are LAN or WAN ports. There
are two separate IP networks, one inside the LAN network and the other outside the WAN network as
shown next.
Figure 53
LAN and WAN IP Addresses
Private IP Addresses
Every machine on the Internet must have a unique address. If your networks are isolated from the
Internet, for example, only between your two branch offices, you can assign any IP addresses to the
hosts without problems. However, the Internet Assigned Numbers Authority (IANA) has reserved the
following three blocks of IP addresses specifically for private networks:
• 10.0.0.0
— 10.255.255.255
• 172.16.0.0
— 172.31.255.255
192.168.0.0 — 192.168.255.255
You can obtain your IP address from the IANA, from an ISP or it can be assigned from a private network.
If you belong to a small organization and your Internet access is through an ISP, the ISP can provide you
Internal Port
This field displays the internal port number that identifies the service.
Protocol
This field displays the protocol of the NAT mapping rule. Choices are
TCP
or
UDP
.
Apply
Click
Apply
to save your changes.
Cancel
Click
Cancel
to restore your previously saved settings.
Table 25
Network Settings > Home Networking > UPnP
LABEL
DESCRIPTION