RAD Data comm Modular Access Device with Integrated Router 用户手册
Chapter 5 Setup Menu
FCD-IPM Installation and Operation Manual
5-12 Routing/Bridging
Menu
To perform these functions, you must configure the parameters in
Table 5-5. Interface Routing/Bridging Mode Menu Parameters
Parameters Possible
Values Description
Link/LAN Type
Bridge
IP Router
IPX
IP Router
IPX
Router
Any combination of
these types
these types
Assigns the link/LAN type, for each interface. Use the space bar to
toggle between the options
Link Protocol
Protocols For
Synchronus Links:
PPP
Native
Protocols For
Asynchronus Links:
PPP
SLIP
CSLIP
Synchronus Links:
PPP
Native
Protocols For
Asynchronus Links:
PPP
SLIP
CSLIP
Defines the type of encapsulation while sending frames through
the WAN interface. The settings are different for various link
types.
Note: When the Native protocol is used with a Router, protocol
types.
Note: When the Native protocol is used with a Router, protocol
packets pass in HDLC format.
When the Native protocol is used with a Bridge, MAC frames pass
in HDLC format.
Link Cost/Metric
Assigns a cost to each WAN link for routing purposes. This
parameter affects FCD-IPM’s operation of the corresponding
interface configured to use RIP routing protocol.
Each routing entry is accompanied by a metric, which is the
Each routing entry is accompanied by a metric, which is the
number of routers through which a packet must go to get to its
destination.
Before updating routing tables, FCD-IPM adds link cost value to
Before updating routing tables, FCD-IPM adds link cost value to
all routing metrics received from this link; this may affect further
routing decisions.
A router will automatically send packets using the lowest possible
metric. If a router is not functioning, FCD-IPM will send the
A router will automatically send packets using the lowest possible
metric. If a router is not functioning, FCD-IPM will send the
packets through an interface with a higher metric.