Zyxel IES-1248 EE [479/544] 2684 routed mode example

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Chapter 64 Virtual Channel Management

IES-1248-51/51A/53 User’s Guide

479

64.7 2684 Routed Mode Commands

Use the 2684 routed mode to have the IES-1248 add MAC address headers to 2684 routed

mode traffic from a PVC that connects to a subscriber device that uses 2684 routed mode. You

can also specify the gateway to which the IES-1248 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 commands in the following order to set up a 2684 routed mode PVC.

1 Use the

adsl rpvc gateway commands to configure gateway settings.

2 Use the

adsl rpvc set command to configure RPVCs (2684 routed mode PVCs) for

2684 routed mode traffic.

3 Use the

adsl rpvc route set command 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.

4 Use the

adsl rpvc arp commands 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.

5 For upstream traffic: Since the subscriber's device will not send out a MAC address,

after the IES-1248 reassembles the Ethernet packets from the AAL5 ATM cells, the IES-

1248 will append the routed mode gateway's MAC address and the IES-1248's MAC

address as the destination/source MAC address.

6 For downstream traffic: When the IES-1248 sees the destination IP address is specified

in the RPVC (or RPVC domain), the IES-1248 will strip out the MAC header and send

them to the corresponding RPVC.

64.7.1 2684 Routed Mode Example

The following figure shows an example RFC 2684 (formerly RFC 1483) routed mode set up.

The gateway server uses IP address 192.168.10.102 and is in VLAN 1. The IES-1248 uses IP

address 192.168.20.101. The subscriber’s device (the CPE) is connected to DSL port 1 on the

IES-1248 and the 2684 routed mode traffic is to use the PVC identified by VPI 8 and VCI 35.

The CPE device’s WAN IP address is 192.168.10.200. The routed domain is the LAN IP

addresses behind the CPE device. The CPE device’s LAN IP address is 10.10.10.10 and the

LAN computer’s IP address is 10.10.10.1. This includes the CPE device’s LAN IP addresses

and the IP addresses of the LAN computers.