Technical data

4. Packages
VDSL modem fli4l router IPTV-STB interface
LAN interface
Figure 4.6.: fli4l in an IPTV configuration
A note for those using only ’normal DSL’, ie ADSL, ADSL2, ADSL2+: VLAN is only
needed by VDSL, but not for ’normal DSL’ - the VLAN configuration will not work in this
case.
If two VLAN tags are used (see above) traffic is split as follows:
• VLAN ID7: Internet traffic
• VLAN ID8: IPTV Multicast traffic
This way Internet traffic is independent from IPTV traffic. The main difference is that
VLAN ID7 needs a PPPoE dial-in. VLAN ID8 is provided via a DHCP server without dial-in.
In this architecure there is no forced disconnect after 24 hours any more.
The following configuration is needed for VLAN (hardware setup of NICs as described
above):
advanced_networking.txt
VLAN_DEV_N='2'
VLAN_DEV_1_DEV='eth1’ # interface of VDSL-Modem; example: eth1
# in our example 'eth1' connects to the VDSL modem
VLAN_DEV_1_VID='7 # ID7 to support VLAN for internet
VLAN_DEV_2_DEV='eth1’ # interface of VDSL modem; example: eth1
VLAN_DEV_2_VID='8’ # ID8 to support VLAN for IPTV
The virtual NIC eth1.7 has to be inserted into the DSL configuration:
dsl.txt
PPPOE_ETH='eth1.7' # eth<number of the card connecting the vdsl modem>.7'
# i.e. 'eth1.7'
The virtual NIC eth1.8 needs a dhcp_client, because VLAN ID8 is provided by a DHCP
server without dial-in.
dhcp_client
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