Users Guide

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 difficult 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)#
ipv6 icmp source-interface
Enable the ICMP error and unreachable messages to be sent with the source interface IP address, such as the loopback address, instead
of the hops of the preceding devices along the network path to be used for easy debugging and diagnosis of network disconnections and
reachability problems with IPv6 packets.
Syntax
ipv6 icmp source-interface interface
Parameters
interface Enter one of the following keywords and slot/port or number information:
• For a Management Ethernet interface, enter the keyword managementethernet.
NOTE: When you configure 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 configured), the
source IP address of the outgoing ICMP error message is modified,
although the packets are not sent out using the configured interface.
Because the management interface is configurable only 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 configured.
Command Modes CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
9.8(1.0) Introduced on the Z9100–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.
IPv4 Routing 749