2684 routed mode, 1 2684 routed mode, 1 2684 routed mode example – ZyXEL Communications IES-708-22A User Manual
Page 189: Chapter 28 2684 routed mode, 2684 routed mode (189)
IES-708-22A User’s Guide
189
C
H A P T E R
28
2684 Routed Mode
This feature is available in STU-C mode only.
This chapter shows you how to set up 2684 routed mode service.
28.1 2684 Routed Mode
Use the 2684 (formerly 1483) routed mode to have the IES-708-22A add MAC address
headers to 2684 routed mode traffic from a PVC that connects to a subscriber device that uses
2684 routed mode. You also specify the gateway to which the IES-708-22A sends the traffic
and the VLAN ID tag to add. See RFC-2684 for details on routed mode traffic carried over
AAL type 5 over ATM.
• Use the
to configure PVCs for 2684 routed mode traffic.
• Use the
to configure domains for 2684 routed mode traffic.
The domain is the range of IP addresses behind the subscriber’s device (the CPE or
Customer Premises Equipment). This includes the CPE device’s LAN IP addresses and
the IP addresses of the LAN computers.
• Use the
to view the Address Resolution Protocol table of IP
addresses of CPE devices using 2684 routed mode and configure how long the device is to
store them.
• Use the
to configure gateway settings.
• For upstream traffic: Since the subscriber's device will not send out a MAC address, after
the IES-708-22A reassembles the Ethernet packets from the AAL5 ATM cells, the IES-
708-22A will append the routed mode gateway's MAC address and the IES-708-22A's
MAC address as the destination/source MAC address.
• For downstream traffic: When the IES-708-22A sees the destination IP address is
specified in the RPVC (or RPVC domain), the IES-708-22A will strip out the MAC
header and send them to the corresponding RPVC.
28.1.1 2684 Routed Mode Example
The following figure shows an example 2684 routed mode set up. The gateway server uses IP
address 192.168.10.102 and is in VLAN 1. The IES-708-22A uses IP address 192.168.20.101.
The subscriber’s device (the CPE) is connected to DSL port 1 on the IES-708-22A and the
2684 routed mode traffic is to use the PVC identified by VPI 8 and VCI 35. The CPE device’s