H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 103)

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Enabling forwarding of directed broadcasts to a directly
connected network
Follow these steps to enable the device to forward directed broadcasts:
To do… Use the command… Remarks
Enter system view system-view —
Enter interface view
interface interface-type
interface-number
—
Enable the interface to forward
directed broadcasts ip forward-broadcast [ acl
acl-number ] Required
Disabled by default.
NOTE:
•
If an ACL is referenced in the ip forward-broadcast command, only packets permitted by the ACL can
be forwarded.
• If you repeatedly execute the ip forward-broadcast command on an interface, only the last executed
command takes effect. If the command executed last does not include acl
acl-number, the ACL
configured previously will be removed.
Configuration example
Network requirements
As shown in Figure 42 , the host's interface and VLAN-interface 3 of the switch are on the same network
segment (1.1.1.0/24). VLAN-interface 2 of Switch A and the server are on another network segment
(2.2.2.0/24). The default gateway of the host is VLAN-interface 3 (IP address 1.1.1.2/24) of Switch A.
Configure the switch so that the server can receive directed broadcasts from the host to IP address
2.2.2.255.
Figure 42 Network diagram for receiving and forwarding directed broadcasts
Configuration procedure
# Enable the switch to receive directed broadcasts.
system-view
[Switch] ip forward-broadcast
# Configure IP addresses for VLAN-interface 3 and VLAN-interface 2.
[Switch] interface vlan-interface 3
[Switch-Vlan-interface3] ip address 1.1.1.2 24
[Switch-Vlan-interface3] quit
[Switch] interface vlan-interface 2
[Switch-Vlan-interface2] ip address 2.2.2.2 24