Atlantis Land Compact Router ADSL A02-RA110 - Manual (Page 31)

COMPACT ROUTER ADSL
A02-RA110 Pag. 23
4.7.1 IP Assignment with PPPoA or PPPoE Encapsulation
If you have a dynamic IP, then 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.
4.7.2 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.
4.7.3 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 ADSL Router acts as a DHCP client on the WAN
port and so the IP Address and ENET ENCAP Gateway fields are not applicable
(N/A) as the DHCP server assigns them to the ADSL Router.
4.7.4 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 with the Internet addresses for
your local networks. On the other hand, if you are part of a much larger
organization, you should consult your network administrator for the appropriate IP
addresses.
4.8 Nailed-Up Connection (PPP)
A nailed-up connection is a dial-up line where the connection is always up
regardless of traffic demand. The ADSL Router does two things when you specify
a nailed-up connection. The first is that idle timeout is disabled. The second is that
the ADSL Router will try to bring up the connection when turned on and whenever
the connection is down. A nailed-up connection can be very expensive for obvious
reasons.