Ip Helper-Address - Cisco Small Business 300 1.1 Series Administration Manual

IP Addressing Commands
78-20269-01 Command Line Interface Reference Guide
Console (config-ip)#

35.14 ip helper-address

Use the ip helper-address Global Configuration mode command to enable the
forwarding of User Datagram Protocol (UDP) broadcast packets received on an
interface to a specific (helper) address. Use the no form of this command to
disable the forwarding of broadcast packets to a specific (helper) address.
Syntax
ip-interface | all} address
ip helper-address {
no ip helper-address {
Parameters
•
ip-interface—Specifies the IP interface.
•
all—Specifies all IP interfaces.
•
address—Specifies the destination broadcast or host address to which to
forward UDP broadcast packets. A value of 0.0.0.0 specifies that UDP
broadcast packets are not forwarded to any host.
•
udp-port-list—Specifies the destination UDP port number to which to
forward broadcast packets. (Range: 1–65535)
Default Configuration
Forwarding of User Datagram Protocol (UDP) broadcast packets received on an
interface to a specific (helper) address is disabled.
If udp-port-list is not specified, packets for the default services are forwarded to
the helper address.
Command Mode
Global Configuration mode
User Guidelines
To use this command, you must put the switch into routing mode using the set
ip-interface | all} address
udp-port-list
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