
58 Chapter 3 Wizard setup
NN47923-500
IP assignment with PPPoA or PPPoE encapsulation
If you have a dynamic IP, the IP Address and ENET ENCAP Gateway fields are
not applicable (N/A). If you have a static IP, then you only need to fill in the IP
Address field and not the ENET ENCAP Gateway field.
IP assignment with RFC 1483 encapsulation
In this case, the IP address assignment must be static with the same requirements
for the IP Address and ENET ENCAP Gateway fields as stated above.
IP assignment with ENET ENCAP encapsulation
In this case, you can have either a static or dynamic IP. For a static IP, you must
fill in all the IP Address and ENET ENCAP Gateway fields as supplied by your
ISP. However, for a dynamic IP, the Business Secure Router acts as a DHCP client
on the WAN and so the IP Address and ENET ENCAP Gateway fields are not
applicable (N/A) as the DHCP server assigns them to the Business Secure Router.
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
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