Dell PowerEdge M805 - Manual (Page 325)

IP Addressing Commands 307
Command Mode
Global Configuration mode
User Guidelines
This command has no user guidelines.
Example
The following example defines a default domain name of dell.com.
console(config)#ip domain-name dell.com
ip helper-address
Use the ip helper-address command in Global Configuration mode to have the device forward
User Datagram Protocol (UDP) broadcasts received on an interface. To disable the forwarding of
broadcast packets to specific addresses, use the no form of this command.
Syntax
ip helper-address {intf-address | all} ip-address [udp-port-list]
no helper-address {intf-address | all} ip-address
• intf-address—IP address of a routing interface. (Range: Any valid IP address)
• all—Indicates that this UDP port to address mapping should be used for all IPv4 routing
interfaces. The exception is if a particular routing interface has its own mapping, then
that mapping takes precedence.
• ip-address—Destination broadcast or host address to be used when forwarding UDP
broadcasts. You can specify 0.0.0.0 to indicate not to forward the UDP packet to any host.
(Range: Any valid IP address)
• udp-port-list—The broadcast packet destination UDP port number to forward. If not
specified, packets for the default services are forwarded to the helper address. (Range: 0-
65535, comma delimited, e.g. 80,100)
Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode
User Guidelines
The ip helper-address command forwards specific UDP broadcast from one interface to
another. You can define many helper addresses but the total number of address-port pairs is
limited to 128 UDP ports for the whole device.