Cisco Catalyst 9500 Series

physical broadcasts. For more information on access lists, see the “Information about Network Security with
ACLs" section in the Security Configuration Guide.
Procedure
PurposeCommand or Action
Enables privileged EXEC mode. Enter your
password if prompted.
enable
Example:
Device> enable
Step 1
Enters the global configuration mode.configure terminal
Example:
Device# configure terminal
Step 2
Enters interface configuration mode, and specifies
the interface to configure.
interface interface-id
Example:
Device(config)# interface
gigabitethernet 1/0/2
Step 3
Enables directed broadcast-to-physical broadcast
translation on the interface. You can include an
ip directed-broadcast
[access-list-number]
Step 4
access list to control which broadcasts are
Example:
Device(config-if)# ip
directed-broadcast 103
forwarded. When an access list, only IP packets
permitted by the access list can be translated.
Returns to global configuration mode.exit
Example:
Device(config-if)# exit
Step 5
Specifies which protocols and ports the router
forwards when forwarding broadcast packets.
ip forward-protocol {udp [port] | nd |
sdns}
Step 6
Example:
Device(config)# ip forward-protocol
nd
• udp—Forward UPD datagrams.
port: (Optional) Destination port that controls
which UDP services are forwarded.
• nd—Forward ND datagrams.
• sdns—Forward SDNS datagrams
Routing Configuration Guide, Cisco IOS XE Everest 16.6.x (Catalyst 9500 Switches)
72
Configuring IP Unicast Routing
Configuring Broadcast Packet Handling