Configuring Udp Helper To Convert Multicast To Broadcast Or Unicast - HP FlexNetwork MSR2003 Configuration Manual

Step
5. Specify a destination
multicast address for
UDP helper to convert
broadcast to multicast.
Configuring UDP helper to convert multicast to
broadcast or unicast
You can configure UDP helper to convert multicast packets with specific UDP port numbers and
multicast addresses to broadcast or unicast packets.
Upon receiving a UDP multicast packet, UDP helper uses the configured UDP ports to match the
UDP destination port number of the packet.
•
If a match is found, UDP helper searches the configured mappings based on the packet's
destination multicast address.
UDP helper duplicates the packet and modifies the copy's destination IP address to the
broadcast or unicast address in the matched mapping. Then UDP helper forwards the
packet to its destination.
If no match is found, UDP helper does not process the packet.
•
If the packet's destination port number does not match the configured UDP ports, UDP helper
does not process the packet.
To configure UDP helper to convert multicast to broadcast or unicast:
Step
1. Enter system view.
2. Enable UDP helper.
3. Specify a UDP port.
4. Enter interface view.
5. Map a multicast
address to a directed
broadcast or a unicast
address for UDP helper.
Command
udp-helper broadcast-map
multicast-address [ acl acl-number ]
Command
system-view
udp-helper enable
udp-helper port { port-number |
dns | netbios-ds | netbios-ns |
tacacs | tftp | time }
interface interface-type
interface-number
udp-helper multicast-map
multicast-address ip-address
[ global | vpn-instance
vpn-instance-name ] [ acl
acl-number ]
198
Remarks
By default, no destination
multicast address is specified
for UDP helper.
If you specify multiple multicast
addresses, UDP helper
creates one copy for each
address.
Use this command on the
interface that receives
broadcast packets.
Remarks
N/A
By default, UDP helper is disabled.
By default, no UDP port is specified.
N/A
By default, no address mapping is
specified for UDP helper.
If you specify multiple multicast and
unicast addresses, UDP helper
creates one copy for each address.
For multicast to broadcast conversion,
do not specify a limited broadcast
address for the ip-address argument.
Use this command on the interface
that receives multicast packets.