3com 9000 SX User Manual

Table 4-15 describes IP route table commands.

Table 4-16 describes the commands used to configure the ICMP 
protocol.

Table 4-15   IP Route Table Commands 

show iproute {vlan {<name> | all | 

permanent | <ipaddress> <netmask>}

Allows you to display the contents of the IP routing 
table.

config iproute add default <gateway> 

{<metric>}

Allows you to add a default gateway to the routing 
table. A default gateway must be located on a 
configured IP interface. If no metric is specified, the 
default metric of 1 is used.

config iproute delete default <gateway>

Allows you to delete a default gateway.

config iproute add <ipaddress> <mask> 

<gateway> {<metric>}

Allows you to add a static address to the routing table. 
Use a value of 255.255.255.255 for 

mask

 to indicate a 

host entry.

config iproute delete <ipaddress> <mask> 

<gateway>

Allows you to delete a static address from the routing 
table.

config iproute add blackhole <ipaddress> 

<mask>

Allows you to add a blackhole address to the routing 
table. All traffic destined for the configured IP address 
is dropped, and no Internet Control Message Protocol 
(ICMP) message is generated.

config iproute delete blackhole 

<ipaddress> <mask>

Allows you to delete a blackhole address from the 
routing table.

Table 4-16   ICMP Commands 

enable icmp redirects {vlan <name> | all}

Allows you to enable generation of ICMP redirect 
messages on one or more VLANs. The default setting is 
enabled.

disable icmp redirects {vlan <name> | 

all}

Allows you to disable the generation of ICMP redirects 
on one or more VLANs.

enable icmp unreachables {vlan <name> | 

all}

Allows you to enable the generation of ICMP 
unreachable messages on one or more VLANs. The 
default setting is enabled.

disable icmp unreachables

Allows you to disable the generation of ICMP 
unreachable messages on one or more VLANs.

(continued)

SW9000.BK  Page 17  Wednesday, April 1, 1998  11:00 AM