IP Routing Features
UDP Broadcast Forwarding
— Continued from the preceding page. —
<
ip-address
>:
This can be either of the following:
• The unicast address of a destination server on another
subnet. For example: 15.75.10.43.
• The broadcast address of the subnet on which a
destination server operates. For example, the following
address directs broadcasts to All hosts in the 15.75.11.0
subnet: 15.75.11.255.
Note:
The subnet mask for a forwarded UDP packet is the same
as the subnet mask for the VLAN (or subnet on a multinetted
VLAN) on which the UDP broadcast packet was received from
a client.
<
udp-port-#
>:
Any UDP port number corresponding to a UDP
application supported on a device at the specified unicast
address or in the subnet at the specified broadcast address. For
more information on UDP port numbers, refer to “TCP/UDP
Port Number Ranges” on page 3-68
.
<
port-name
>
:
Allows use of common names for certain well-
known UDP port numbers. You can type in the specific name
instead of having to recall the corresponding number:
dns:
Domain Name Service (53)
ntp:
Network Time Protocol (123)
netbios-ns:
NetBIOS Name Service (137)
netbios-dgm:
NetBIOS Datagram Service (138)
radius:
Remote Authentication Dial-In User Service (1812)
radius-old:
Remote Authentication Dial-In User Service (1645)
rip:
Routing Information Protocol (520)
snmp:
Simple Network Management Protocol (161)
snmp-trap:
Simple Network Management Protocol (162)
tftp:
Trivial File Transfer Protocol (69)
timep:
Time Protocol (37)
For example, the following command configures the routing switch to forward
UDP broadcasts from a client on VLAN 1 for a time protocol server:
ProCurve(config)# ip forward-protocol udp 15.75.11.155
timep
3-66
