H3C Technologies H3C WX6000 Series Access Controllers - Manual (Page 214)

23-2
1) Destination address and mask
In the ip route-static command, an IPv4 address is in dotted decimal format and a mask can be either
in dotted decimal format or in the form of mask length (the digits of consecutive 1s in the mask).
2) Output interface and next hop address
While configuring a static route, you can specify either the output interface or the next hop address
depending on the specific occasion. The next hop address can not be a local interface IP address;
otherwise, the route configuration will not take effect.
In fact, all the route entries must have a next hop address. When forwarding a packet, a router first
searches the routing table for the route to the destination address of the packet. The system can find the
corresponding link layer address and forward the packet only after the next hop address is specified.
When specifying the output interface, note that:
z
If the output interface is a NULL 0 interface, there is no need to configure the next hop address.
z
You are not recommended to specify a broadcast interface (such as VLAN interface) as the output
interface, because a broadcast interface may have multiple next hops. If you have to do so, you
must specify the corresponding next hop for the output interface.
3) Other attributes
You can configure different preferences for different static routes so that route management policies can
be applied more flexibly. For example, specifying the same preference for different routes to the same
destination enables load sharing, while specifying different preferences for these routes enables route
backup.
Configuring a Static Route
Configuration Prerequisites
Before configuring a static route, you need to configure the IP addresses for related interfaces.
Configuration Procedure
Follow these steps to configure a static route:
To do… Use the command… Remarks
Enter system view system-view —
Configure a static route
ip route-static dest-address { mask | mask-length }
{ next-hop-address | interface-type
interface-number
[ next-hop-address ] }
[ preference preference-value ] [ tag tag-value ]
[ description description-text ]
Required
By default, preference for
static routes is 60, tag is 0,
and no description
information is configured.
Configure the default
preference for static
routes
ip route-static default-preference
default-preference-value
Optional
60 by default