Zhone zNID-GPON-2402 Configuration Manual page 160

Configuration
160
zNID 24xx Series Configuration Guide
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PPPoE Bridged or Routed
PPPoE bridged or routed connections are very similar to bridged or routed
connections, only that the uplink interface is a PPPoE client that
establishes a PPPoE tunnel to an upstream BRAS
– PPPoE/Bridged VLANs are similar to Brouted VLANs, but the
uplink interface is a PPPoE client that establishes a PPPoE tunnel to
an upstream BRAS. On the LAN side of a PPPoE/Bridged VLAN, all
ports will be members of the same IP Subnet.
– PPPoE/Routed VLANs are similar to Routed VLANs, but the uplink
interface is a PPPoE client that establishes a PPPoE tunnel to an
upstream BRAS. On the LAN side of a PPPoE/Routed VLAN, each
LAN port will require its own IP subnet.
Figure 120: For PPPoE bridged the LAN side interfaces are all in the same
subnet. The WAN side is in its own subnet and a PPPoE tunnel is created to an
upstream BRAS