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IP Configuration Command Set
Reviewing IP Traffic and Configuring Routes
12-34
This example shows how to set IP address 10.1.2.3 as the next hop gateway to destination address 
10.0.0.0. The route is set as permanent and assigned a tag of 20:
This example shows how to set VLAN 100 as the next hop interface to destination address 10.0.0.0:
12.2.5.7 ip icmp
Use this command to re-enable the Internet Control Message Protocol (ICMP), allowing a router to 
reply to IP ping requests. By default, ICMP messaging is enabled on a routing interface for both 
echo-reply and mask-reply modes. If, for security reasons, ICMP has been disabled using no ip 
icmp
, this command will re-enable it on the routing interface.
ip icmp {echo-reply mask-reply}
Syntax Description
Command Syntax of the “no” Form
The “no” form of this command disables ICMP:
no ip icmp {echo-reply mask-reply}
Command Type
Router command.
Matrix>Router(config)#ip route 10.0.0.0 255.0.0.0 10.1.2.3 permanent tag 20
Matrix>Router(config)#ip route 10.0.0.0 255.0.0.0 vlan 100
echo-reply
Enables ICMP in echo-reply mode.
mask-reply
Enables ICMP in mask-reply mode.