Default Route; Static Route Configuration; Configuration Prerequisites; Configuring A Static Route - H3C S3100-52P Operation Manual

Operation Manual – Static Route
H3C S3100-52P Ethernet Switch
Blackhole route: route with blackhole attribute. If a static route destined for a
destination has the blackhole attribute, the outgoing interface of this route is the
Null 0 interface regardless of the next hop address, and all the IP packets
addressed to this destination will be dropped without notifying the source hosts.
The attributes reject and blackhole are usually used to limit the range of the
destinations this router can reach, and help troubleshoot the network.

2.1.2 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.

2.2 Static Route Configuration

2.2.1 Configuration Prerequisites

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

2.2.2 Configuring a Static Route

Follow these steps to configure a static route:
To do...
Enter system view
Configure a static
route
Use the command...
system-view
ip route-static ip-address
{ mask | mask-length }
{ interface-type interface-number
| next-hop } [ preference
preference-value ] [ reject |
blackhole ] [ description text ]
2-2
Chapter 2 Static Route Configuration
Remarks
—
Required
By default, the system can
obtain the route to the
subnet directly connected
to the router.