System Configuration

Figure 4-10:DHCP client enable

Step 3

Click on “NAT” tab on left panel, and enable the NAPT function in the option menu.

Step 4

Click “Save settings” on left panel to write configuration into machine, and reboot to make settings effective.

Other settings

Here are explanations about some fields not mentioned above.

MAC Spoofing

The MAC Spoofing is developed to solve the scenario when the ISP only recognizes one MAC address. Copy the ISP-recognized MAC address here.

Figure 4-11: MAC Spoofing

ATM

If your ISP provides this information to you, fill it in appropriate field.

Service Category

UBR and CBR are two different types of service supported from the ATM.

Bandwidth

Bandwidth setting takes effect only when the CBR is selected. The maximum available bandwidth is from the upstream data rate of ADSL status page.

Figure 4-12:ATM Bandwidth Category

IGMP

Support IGMP proxy/relay function for ADSL modem, based on the following requirement and case:

•On CO side, there must be at least one IGMP querier (router) present. IGMP querier will send IGMP query packet. The ADSL modem is responsible to relay these IGMP query to Ethernet.

•End-user multicast application device send IGMP report while receiving IGMP query or being activated by user, the ADSL modem should be responsible to proxy (that is, change source IP to ADSL modem’s WAN IP) the IGMP report to ADSL WAN side, include all PVCs. The same case is for IGMP leave packet.

•It is not necessary to relay multicast routing between two ADSL PVCs or two interfaces in LAN side.

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