Brocade Mobility 7131 Installation Guide - Dependent Mode (Supporting software release 4.1.0.0 and later) - Manual (Page 35)

Configuring basic device settings
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Brocade Mobility 7131 Installation Guide - Dependent Mode 27
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6. Optionally, use the Enable PPP over Ethernet checkbox to enable Point-to-Point
Protocol over Ethernet (PPPoE) for a high-speed connection that supports this
protocol. Most DSL providers are currently using or deploying this protocol.
PPPoE is a data-link protocol for dialup connections. PPPoE will allow the
Mobility 7131 to use a broadband modem (DSL, cable modem, etc.) for access
to high-speed data networks.
a. Select the Keep Alive checkbox to enable occasional communications over
the WAN port even when client communications to the WAN are idle. Some
ISPs terminate inactive connections, while others do not. In either case,
enabling Keep-Alive maintains the WAN connection, even when there is no
traffic. If the ISP drops the connection after the idle time, the Mobility 7131
automatically reestablishes the connection to the ISP.
b. Specify a Username entered when connecting to the ISP. When the
Internet session begins, the ISP authenticates the username.
c. Specify a Password entered when connecting to the ISP. When the Internet
session starts, the ISP authenticates the password.
7. Click the LAN tab to set a minimum set of parameters to use the Mobility 7131
LAN interface.
a. Select the Enable LAN Interface checkbox to forward data traffic over the
Mobility 7131 LAN connection. The LAN connection is enabled by default.
b. Use the This Interface drop-down menu to specify how network address
information is defined over the Mobility 7131’s LAN connection. Select
DHCP Client if the larger corporate network uses DHCP. DHCP is a protocol
that includes mechanisms for IP address allocation and delivery of
host-specific configuration parameters from a DHCP server to a host.
Some of these parameters are IP address, network mask, and gateway.
Select DHCP Server
to use the Mobility 7131 as a DHCP server over the
LAN connection.
c. Enter the network-assigned IP Address of the Mobility 7131.
d. The Subnet Mask defines the size of the subnet. The first two sets of
numbers specify the network domain, the next set specifies the subset of
hosts within a larger network. These values help divide a network into
subnetworks and simplify routing and data transmission.
e. Enter a Default Gateway to define the IP address of a router the Mobility
7131 uses on the Ethernet as its default gateway.
f. Enter the Primary DNS Server IP address.