Default Route; Static Route Configuration; Configuration Prerequisites; Configuring A Static Route - 3Com 4500 Configuration Manual

Default Route

To avoid too large a routing table, you can configure a default route.
When the destination address of a packet fails to match any entry in the routing table,
If there is default route in the routing table, the default route will be selected to forward the packet.
If there is no default route, the packet will be discarded and an ICMP Destination Unreachable or
Network Unreachable packet will be returned to the source.
A default route can be manually configured or generated by some dynamic routing protocols, such as
OSPF and RIP.

Static Route Configuration

Configuration Prerequisites

Before configuring a static route, perform the following tasks:
Configuring the physical parameters of related interfaces
Configuring IP addresses for related interfaces

Configuring a Static Route

Follow these steps to configure a static route:
To do...
Enter system view
Configure a static
route
Use the ip route-static command to configure a default route by setting the destination IP address
and the mask to 0.0.0.0.
Avoid configuring the next hop address of a static route to the address of an interface on the local
switch.
Different preferences can be configured to implement flexible route management policies.
For automatic detection information, refer to the part discussing Auto Detect.

Displaying and Maintaining Static Routes

To do...
Display the current configuration
information
Use the command...
system-view
ip route-static ip-address { mask |
mask-length } { interface-type
interface-number | next-hop } [ preference
preference-value ] [ reject | blackhole ]
[ detect-group group number ] [ description
text ]
display current-configuration
2-2
Use the command...
Remarks
—
Required
By default, the system
can obtain the route to the
subnet directly connected
to the router.
Remarks
Available in
any view