Dell PowerEdge VRTX - Manual (Page 675)

IP Addressing Commands 675
FILE LOCATION: C:\Users\gina\Desktop\Checkout_new\CLI Folders\Dell Plasma-ARC
2+3\new_system_mifs_ARC2_latest\IP_Addressing_MeS.fm
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Command Mode
Global Configuration mode
User Guidelines
This command forwards specific UDP Broadcast packets from one interface
to another, by specifying a UDP port number to which UDP Broadcast
packets with that destination port number are forwarded. By default, if no
UDP port number is specified, the device forwards UDP Broadcast packets for
the following six services:
• IEN-116 Name Service (port 42)
• DNS (port 53)
• NetBIOS Name Server (port 137)
• NetBIOS Datagram Server (port 138)
• TACACS Server (port 49)
• Time Service (port 37)
Many helper addresses may be defined. However, the total number of address-
port pairs is limited to 128 for the device.
The setting of a helper address for a specific interface has precedence over the
setting of a helper address for all the interfaces.
Forwarding of BOOTP/DHCP (ports 67, 68) cannot be enabled with this
command. Use the DHCP relay commands to relay BOOTP/DHCP packets.
The
ip-interface argument cannot be the OOB port.
Example
The following example enables the forwarding of UDP Broadcast packets
received on all interfaces to the UDP ports of a destination IP address and
UDP port 1 and 2.
console(config)#ip helper-address all 172.16.9.9 49 53 1 2
show ip helper-address
Use the show ip helper-address Privileged EXEC mode command to display
the IP helper addresses configuration on the system.