ZyXEL Vantage CNM User Guide - Page 288
Table 112
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Chapter 9 Device Network Settings Table 112 Device Operation > Device Configuration > Network > Interface > PPP > Edit > Configuration (continued) LABEL DESCRIPTION Compression Select On button to turn on stac compression, and select Off to turn off stac compression. Stac compression is a data compression technique capable of compressing data by a factor of about four. Idle timeout Type the number of seconds the ZyWALL should wait for traffic before it automatically disconnects the connection. Set this field to zero to disable the idle timeout. Allowed values are 0 - 360. IP Address Assignment Click Advanced to display more settings. Click Basic to display fewer settings. Get Automatically Select this if this interface is a DHCP client. In this case, the DHCP server configures the IP address automatically. The subnet mask and gateway are always defined automatically in PPPoE/PPTP interfaces. Use Fixed IP Address Select this if you want to specify the IP address manually. IP Address This field is enabled if you select Use Fixed IP Address. Enter the IP address for this interface. Metric Enter the priority of the gateway (the ISP) on this interface. The ZyWALL decides which gateway to use based on this priority. The lower the number, the higher the priority. If two or more gateways have the same priority, the ZyWALL uses the one that was configured first. Interface Parameters Upstream Bandwidth Enter the maximum amount of traffic, in kilobits per second, the ZyWALL can send through the interface to the network. Allowed values are 0 - 1048576. Downstream Bandwidth This is reserved for future use. Enter the maximum amount of traffic, in kilobits per second, the ZyWALL can receive from the network through the interface. Allowed values are 0 - 1048576. MTU Maximum Transmission Unit. Type the maximum size of each data packet, in bytes, that can move through this interface. If a larger packet arrives, the ZyWALL divides it into smaller fragments. Allowed values are 576 - 1492. Usually, this value is 1492. Ping Check The interface can regularly check the connection to the gateway you specified to make sure it is still available. You specify how often the interface checks the connection, how long to wait for a response before the attempt is a failure, and how many consecutive failures are required before the ZyWALL stops routing to the gateway. The ZyWALL resumes routing to the gateway the first time the gateway passes the connectivity check. Enable Select this to turn on the connection check. Check Method Select the method that the gateway allows. Select icmp to have the ZyWALL regularly ping the gateway you specify to make sure it is still available. Select tcp to have the ZyWALL regularly perform a TCP handshake with the gateway you specify to make sure it is still available. 288 Vantage CNM User's Guide