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ATU-R110 User Manual
14
Configuring EOA Interfaces
This chapter describes how to configure an Ethernet-over-ATM
interface on the ATU-R110, if one is needed to communicate with
your ISP.
Overview of EOA
The Ethernet-over-ATM (EOA) protocol is commonly used to carry
data between local area networks that use the Ethernet protocol
and wide-area networks that use the ATM protocol. Many
telecommunications industry networks use the ATM protocol. ISPs
who provide DSL services often use the EOA protocol for data
transfer with their customers¡¦ DSL modems
EOA can be implemented to provide a bridged connection between
a DSL modem and the ISP. In a bridged connection, data is shared
between the ISP¡¦s net wor k andt h eir cust o mer¡¦s as if t he ne t wor k
were on the same physical LAN. Bridged connections do not use
the IP protocol. EOA can also be configured to provide a routed
connection with the ISP, which uses the IP protocol to exchange
data.
Before creating an EOA interface or modifying the default settings,
contact your ISP to determine which type of protocol they use.
Note
PPP vs. EOA: Your ISP may use a protocol other than EOA for
communication with the ATU-R110, such as the point-to-point
protocol (PPP). One type of PPP, named PPP over Ethernet
(PPPoE), actually works ¡§ont op¡¨ of t he EO
A prot ocol. The ot he
type, PPP over ATM (PPPoA), does not. However, if your ISP
uses either type of PPP, you do not need to separately create an
EOA interface. See Chapter 12 for instructions on creating or
configuring a PPP interface.
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