Chapter 5 WAN Setup
P-870HN-51D User’s Guide
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5.2 What You Need to Know
Encapsulation Method
Encapsulation is used to include data from an upper layer protocol into a lower
layer protocol. To set up a WAN connection to the Internet, you need to use the
same encapsulation method used by your ISP (Internet Service Provider). If your
ISP offers a dial-up Internet connection using PPPoE (PPP over Ethernet), they
should also provide a username and password (and service name) for user
authentication.
WAN IP Address
The WAN IP address is an IP address for the P-870HN-51D, which makes it
accessible from an outside network. It is used by the P-870HN-51D to
communicate with other devices in other networks. It can be static (fixed) or
dynamically assigned by the ISP each time the P-870HN-51D tries to access the
Internet.
If your ISP assigns you a static WAN IP address, they should also assign you the
subnet mask and DNS server IP address(es) (and a gateway IP address if you use
the Ethernet or ENET ENCAP encapsulation method).
PTM
Packet Transfer Mode (PTM) is packet-oriented and supported by the VDSL2
standard. In PTM, packets are encapsulated directly in the High-level Data Link
Control (HDLC) frames. It is designed to provide a low-overhead, transparent way
of transporting packets over DSL links, as an alternative to ATM.
Table 11 WAN Setup Overview
LAYER-2 INTERFACE INTERNET CONNECTION
INTERFACE
CONNECTION
MODE
WAN SERVICE
TYPE
CONNECTION SETTINGS
PTM Default Mode
VLAN MUX
Mode
MSC Mode
PPPoE PPP user name and
password, WAN IP address,
DNS server and default
gateway
IPoE WAN IP address, NAT, DNS
server and default gateway
Bridging N/A
