ef(4)

NAME

device ef

The ef pseudo-device driver clones each Ethernet type device
with four additional interfaces. Each of them is capable to send or
receive only one predefined frame type.
Names for the new interfaces are created by adding a fN suf
fix to an existing device name. Where N is a device unit which can
have one of the following values:: 0 interface with an Ethernet_II frame
1 interface with a Novell Ethernet_802.3 frame
2 interface with an Ethernet_802.2 frame
3 interface with an Ethernet_802.2/SNAP frame sup; port.
For example, device ed0 will be populated with four devices:
ed0f0, ed0f1, ed0f2 and ed0f3.
After that, each device can be configured as usual:: # ifconfig ed0f1 ipx 0x105
This will configure IPX protocol with network number 0x105
and
Ethernet_802.3 frame type.
Please note that it is impossible to configure the IPX pro
tocol on the
parent ed0 device after the if_ef.ko driver has been loaded.
If the parent interface is not configured for any other pro
tocol (IP for example), subinterfaces will not function. To avoid that,
the parent interface should be manually marked as ``up'':: # ifconfig ed0 up

The ef driver can be loaded via the loader.conf(5) file:: if_ef_load="YES"
In this case, ordinary interface configuration commands can
be used in the rc.conf(5) file:: network_interfaces="ed2 lo0 tun0 ed2f0 ed2f1"
ifconfig_ed2f0_ipx="ipx 0x101"
ifconfig_ed2f1_ipx="ipx 0x102"

None.