Command Line Reference Guide
IPv4 Routing | 615
Related
Commands
debug ip icmp
c e s
View information on the Internal Control Message Protocol (ICMP).
Syntax
debug ip icmp [interface] [count value]
To disable debugging, use the no debug ip icmp command.
Parameters
Command Modes
EXEC Privilege
Command
History
Example ICMP: echo request rcvd from src 40.40.40.40
ICMP: src 40.40.40.40, dst 40.40.40.40, echo reply
ICMP: src 40.40.40.40, dst 40.40.40.40, echo reply
ICMP: echo request sent to dst 40.40.40.40
ICMP: echo request rcvd from src 40.40.40.40
ICMP: src 40.40.40.40, dst 40.40.40.40, echo reply
ICMP: src 40.40.40.40, dst 40.40.40.40, echo reply
ICMP: echo request sent to dst 40.40.40.40
Usage
Information
Use the count option to stop packets from flooding the user terminal when debugging is turned on.
ip helper-address
Specify the destination broadcast or host address for DHCP
server request.
ip helper-address hop-count disable Disable hop-count increment for DHCP relay agent.
interface
(OPTIONAL) Enter the following keywords and slot/port or number information:
• For a 1-Gigabit Ethernet interface, enter the keyword
GigabitEthernet followed by
the slot/port information.
• For the Management interface, enter the keyword ManagementEthernet followed
by the slot/port information. The slot range is 0 and the port range is 0-1.
• For a Port Channel interface, enter the keyword
port-channel followed by a number:
C-Series and S-Series Range: 1-128
E-Series Range: 1 to 255 for TeraScale and 1 to 512 for ExaScale.
• For a SONET interface, enter the keyword
sonet followed by the slot/port information.
• For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet followed
by the slot/port information.
• For VLAN, enter the keyword vlan followed by a number from 1 to 4094.
count value (OPTIONAL) Enter the keyword count followed by the count value.
Range: 1 to 65534
Default: Infinity
Version 8.2.1.0 Support 4094 VLANs on E-Series ExaScale (prior limit was 2094)
Version 8.1.1.0 Introduced on E-Series ExaScale
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
Version 6.3.1.0 Added the count option