Users Guide

• For a Management Ethernet interface, enter the keyword managementethernet.
NOTE: When you congure the capability to enable the loopback IP
address to be sent for easy debugging and diagnosis (IP addresses of
the devices for which the ICMP source interface is congured), the
source IP address of the outgoing ICMP error message is modied,
although the packets are not sent out using the congured interface.
Because the management interface is congured without any
parameters such as the IP address, it is treated to the management
interface of the primary unit or the existing unit.
• For a 1-GigabitEthernet interface, enter the keyword GigabitEthernet then the
slot/port information.
• For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then
the slot/port information.
• For a Loopback interface, enter the keyword loopback then a number from 0 to
16383.
• For a port channel interface, enter the keywords port-channel then a number.
• For a VLAN interface, enter the keyword vlan then a number from 1 to 4094.
Defaults Not congured.
Command Modes CONFIGURATION
Command History
This guide is platform-specic. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
9.10(0.0) Introduced on the S6100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.3(0.0) Introduced on the S4810, S4820T, S6000, and Z9000 platforms.
Usage Information
You can enable the mechanism to congure the source or the originating interface from which the packet (the
device that generates the ICMP error messages) is received by the switch to send the loopback address instead of
its source IP address to be used in the ICMP unreachable messages and in the traceroute command output.
The loopback address must be unique in a particular domain.
In network environments that contain a large number of devices, ranging up to thousands of systems, and with
each device congured for equal-cost multipath (ECMP) links, you cannot eectively and optimally use the
traceroute and ping applications to examine the network reachablity and identify any broken links for diagnostic
purposes. In such cases, if the reply that is obtained from each hop on the network path contains the IP address of
the adjacent, neighboring interface from which the packet is received, it is dicult to employ the ping and
traceroute utilites. You can enable the ICMP unreachable messages to contain the loopback address of the source
device instead of the previous hop's IP address to be able to easily and quickly identify the device and devices
along the path because the DNS server maps the loopback IP address to the hostname and does not translate the
IP address of every interface of the switch to the hostname.
Example
Dell(conf)# ip icmp source-interface gigabitethernet 1/1
Dell(conf)#
714 IPv4 Routing