3com WX3000 User Manual

 

2-2 

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, 

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If there is default route in the routing table, the default route will be selected to forward the packet. 

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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. 

Before configuring a static route, perform the following tasks:  

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Configuring the physical parameters of related interfaces  

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Configuring IP addresses for related interfaces 

Follow these steps to configure a static route: 

Enter system view 

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Configure a static 
route 

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 ] 

Required 

By default, the system 
can obtain the route to the 
subnet directly connected 
to the router. 

 

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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. 

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Avoid configuring the next hop address of a static route to the address of an interface on the local 

device. 

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Different preferences can be configured to implement flexible route management policies. 

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For automatic detection information, refer to the part discussing Auto Detect.