Chapter 5: Ethernet Interface Commands
Efficient Networks
®
Router family
Command Line Interface Guide
Page 5-18
Efficient Networks
®
eth ip directbcast
Enables or disables the forwarding of broadcast packets directed to a specific network
prefix. When forwarding is disabled, the router silently discards all packets broadcast
to a subnet. The default is off; thus, by default, all network prefix-directed broadcast
packets are discarded. This applies to all broadcast interfaces, including all Ethernet
interfaces.
A network prefix-directed broadcast address is the broadcast address to a particular
network. For example, if a network’s IP address is 192.168.254.254 and its mask is
255.255.255.0, its network prefix-directed broadcast addresses are 192.168.254.0
and 192.168.254.255.
This feature is independent of the IP firewall and IP filtering features. However, it does
require that IP routing be enabled (see
eth ip enable
). To see the current settings for
IP routing and directed broadcasts, use the
eth list
command.
Mgmt Class
Network (R/W)
Input Format
eth ip directedbcast on | off
Parameters
Response
Command prompt.
eth ip disable
Disables IP routing across the Ethernet LAN. This commands acts as a master switch
allowing you to disable all IP routing for testing or control purposes.
NOTE:
This command requires a
save
and
reboot
before it takes effect.
Mgmt Class
Network (R/W)
on
Enables the forwarding of packets broadcast to a subnet.
off
Disables the forwarding of packets broadcast to a subnet.
