H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – IP Addressing and Performance
H3C S7500E Series Ethernet Switches Chapter 2 IP Performance Configuration
2-2
To do… Use the command… Remarks
Enter system view
system-view
—
Enable the device to
receive directed
broadcasts
ip forward-broadcast
Required
By default, the device is
disabled from receiving
directed broadcasts.
2.2.2 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
By default, the device is
disabled from forwarding
directed broadcasts.
 Note:
z You can reference an ACL to forward only directed broadcasts permitted by the
ACL.
z If you execute the ip forward-broadcast acl command on an interface repeatedly,
the last execution overwrites the previous one. If the command executed last time
does not include the acl acl-number, the ACL configured previously will be
removed.
2.2.3 Configuration Example
I. Network requirements
As shown in Figure 2-1, the host’s interface and VLAN-interface 3 of Switch A are on
the same network segment (1.1.1.0/24). VLAN-interface 2 of Switch A and
VLAN-interface 2 of Switch B 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
a static route on Switch B to enable the reachability between host and Switch B.