Ip Address Assignment - Telkom ADSL 5100 Instruction Manual

network administrator assigns you a block of registered IP addresses, follow their instructions in
selecting the IP addresses and the subnet mask.
If the ISP did not explicitly give you an IP network number, then most likely you have a single user
account and the ISP will assign you a dynamic IP address when the connection is established. If
this is the case, it is recommended that you select a network number from 10.0.0.0 to 10.0.255.0
and you must enable the Network Address Translation (NAT) feature of the TELKOM ADSL 5100.
Let's say you select 10.0.0.0 as the network number; which covers 254 individual addresses, from
10.0.0.1 to 10.0.0.254 (zero and 255 are reserved). In other words, the first three numbers specify
the network number while the last number identifies an individual computer on that network.
Once you have decided on the network number, pick an IP address that is easy to remember, for
instance, 10.0.0.2, for your TELKOM ADSL 5100, but make sure that no other device on your
network is using that IP address.
The subnet mask specifies the network number portion of an IP address. Your TELKOM ADSL
5100 will compute the subnet mask automatically based on the IP address that you entered. You
don't need to change the subnet mask computed by the TELKOM ADSL 5100 unless you are
instructed to do otherwise.

3.7 IP Address Assignment

A static IP is a fixed IP that your ISP gives you. A dynamic IP is not fixed; the ISP assigns you a
different one each day. The Single User Account feature can be enabled or disabled if you have
either a dynamic or static IP. However the encapsulation method assigned influences your
choices for IP address and ENET ENCAP Gateway. Currently only Dynamic IPs is available for
the Internet over ADSL service offered by Telkom.
3.7.1 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.
3.7.2 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.
3.7.3 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 TELKOM ADSL 5100 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
TELKOM ADSL 5100.
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