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5.5.5 RFC 1483 Interface (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 network and their customer's as if
the networks 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.
Interface: The name the software uses to identify the EoA interface.
Interface Sec Type: The type of security protections in effect on the interface (public, private,
or DMZ):
z A public interface connects to the Internet (IPoA interfaces are typically public). Packets
received on a public interface are subject to the most restrictive set of firewall protections
defined in the software.
z A private interface connects to your LAN, such as the Ethernet interface. Packets
received on a private interface are subject to a less restrictive set of protections, because
they originate within the network.
z The term DMZ (de-militarized zone), in Internet networking terms, refers to computers