Service Manual

relayed with the same value for hops. However, the message is discarded if the hops field exceeds 16, to comply
with the relay agent behavior specified in RFC 1542.
Related Commands
ip helper-address — specifies the destination broadcast or host address for DHCP server requests.
show running-config — displays the current configuration and changes from the default values.
ip host
Assign a name and IP address to be used by the host-to-IP address mapping table.
Syntax
ip host name ip-address
To remove an IP host, use the no ip host name [ip-address] command.
Parameters
name Enter a text string to associate with one IP address.
ip-address Enter an IP address, in dotted decimal format, to be mapped to the name.
Defaults Not configured.
Command Modes CONFIGURATION
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
ip 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 IPv4 packets.
Syntax
ip 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 configured 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 Loopback interface, enter the keyword loopback. The range is from 0 to
16383.
• For a Port Channel interface, enter the keywords port-channel then a number.
The range is from 1 to 128.
• For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet.
IPv4 Routing 575