Resolution
In order to configure an IP access list to control directed broadcasts, complete one of these steps:
- Configure the ip directed-broadcast command directly on an interface:
Hostname(config)#interface FastEthernet
Hostname(config-if)#ip directed-broadcast
- Configure an access control list (ACL) in order to permit traffic only from a trusted source. For example, 192.168.10.10 is the Wake-on-LAN (WoL) server.
Hostname(config)#access-list 10 permit 192.168.10.10
Then, apply that under the VLAN interface:
Hostname(config)#interface Vlan <Vlan id>
Hostname(config-if)#ip address x.x.y.y subnet mask
Hostname(config-if)#no ip redirects
Hostname(config-if)#ip directed-broadcast 10
!--- 10 is the ACL number.