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030-300381 Rev. A 90 January 2004
UltraLine Home DSL Router (Models 7400, 7401)
User Guide
PPPoE = Point to Point Protocol over Ethernet
Bridge = Bridge Protocol
Classical IPoA = Internet Protocol over ATM (Asynchronous Transfer Mode). This
is an ATM encapsulation of the IP protocol.
Status The protocol status.
VC 1 Bridge Settings
Bridge = A bridge is a layer 2 device that connects two segments of the same LAN that use the
same protocol such as Ethernet. The Router does not have a WAN IP address in this mode. The
client PC will typically get an IP address form a DHCP server in the network or it can be assigned
statically.
Routed Bridge = Routed Bridged Encapsulation (RBE) is the process by which a bridged segment
is terminated on a routed interface. Specifically, the router is routing on an IEEE 802.3 or
Ethernet header carried over RFC 1483 bridged ATM. RBE was developed to address the known
RFC1483 bridging issues, including broadcast storms and security. The Router will get a WAN IP
address through DHCP or can be assigned statically. NAT will use the global address assigned to
the Router.
Proxy Bridge = Proxy Bridge is the process in which the Router acts as a proxy ARP agent for a
local public subnet. The Router will be assigned an IP address from within that public subnet.
The Router will direct all traffic to a router, which is configured statically. The router address
must not reside within the Routers assigned public subnet. All traffic will be sent via the router
MAC address. The LAN may also have a private NAT'ed network. NAT will use the global
address assigned to the Router.
Mode
VLAN = Assigns VLAN tags to individual data ports on the Router.
If you selected the Routed Bridge mode under VC 1- Bridge Settings, the following screen will be displayed.