Command Reference UDP-Helper Module Commands
UDP-Helper Module Commands
ip forward-protocol
Use this command to configure the User Datagram Protocol (UDP) port to enable relay forwarding.
Use the no form of this command to disable forwarding on the UDP port.
ip forward-protocol udp [ port | tftp | domain | time | netbios-ns | netbios-dgm | tacacs ]
no ip forward-protocol udp [ port | tftp | domain | time | netbios-ns | netbios-dgm | tacacs ]
Parameter
Description
Parameter Description
port
Port where relay forwarding is enabled. If this parameter is not
specified, the broadcast packet from the ports 69, 53, 37, 137, 138,
and 49 will be forwarded by default.
tftp
Specified by Trivial File Transfer Protocol(69).
If this parameter is specified, the broadcast packet from port 69 is
relayed and forwarded.
domain
Specified by Domain Name System(53).
If this parameter is specified, the broadcast packet from port 53 is
forwarded.
time
Specified by Time service(37).
If this parameter is specified, the broadcast packet from port 37 is
forwarded.
netbios-ns
Specified by NetBIOS Name Service(137).
If this parameter is specified, the broadcast packet from port 137 is
forwarded.
netbios-dgm
Specified by NetBIOS Datagram Service(138).
If this parameter is specified, the broadcast packet from port 138 is
forwarded.
tacacs
Specified by TAC Access Control System(49).
If this parameter is specified, the broadcast packet from port 49 is
forwarded.
Defaults
No UDP port for forwarding is configured by default.
Command
Mode
Global configuration mode
Usage Guide
Enabling UDP-Helper means to forward the broadcast packet of the UDP ports 69, 53, 37, 137, 138,
and 49 without any additional configuration, by default.
To Next Page
Loading...
Need help?
General
