Chapter 11 Interfaces

 

Table 61 Configuration > Network > Interface > Cellular > Add (continued)

 

LABEL

DESCRIPTION

 

Egress

Enter the maximum amount of traffic, in kilobits per second, the

 

Bandwidth

ZyWALL can send through the interface to the network. Allowed

 

 

values are 0 - 1048576. This setting is used in WAN load balancing

 

 

and bandwidth management.

 

 

 

 

Ingress

This is reserved for future use.

 

Bandwidth

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.

 

 

 

 

Connectivity

The interface can regularly check the connection to the gateway you

 

Check

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.

 

Connectivity

 

 

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.

 

 

 

 

Check Period

Enter the number of seconds between connection check attempts.

 

 

 

 

Check Timeout

Enter the number of seconds to wait for a response before the

 

 

attempt is a failure.

 

 

 

 

Check Fail

Enter the number of consecutive failures before the ZyWALL stops

 

Tolerance

routing through the gateway.

 

 

 

 

Check Default

Select this to use the default gateway for the connectivity check.

 

Gateway

 

 

 

 

 

Check this

Select this to specify a domain name or IP address for the

 

address

connectivity check. Enter that domain name or IP address in the field

 

 

next to it.

 

 

 

 

Check Port

This field only displays when you set the Check Method to tcp.

 

 

Specify the port number to use for a TCP connectivity check.

 

 

 

 

Related Setting

 

 

 

 

 

Configure WAN

Click WAN TRUNK to go to a screen where you can configure the

 

TRUNK

interface as part of a WAN trunk for load balancing.

 

 

 

 

Configure

Click Policy Route to go to the policy route summary screen where

 

Policy Route

you can configure a policy route to override the default routing and

 

 

SNAT behavior for the interface.

 

 

 

 

IP Address

 

 

Assignment

 

 

 

 

 

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ZyWALL USG 50 User’s Guide