Chapter 7 Interfaces

 

 

 

 

 

Table 41 Configuration > Network > Interface > Ethernet > Edit (continued)

 

LABEL

DESCRIPTION

 

 

Egress

Enter the maximum amount of traffic, in kilobits per second, the ZyWALL can send

 

 

Bandwidth

through the interface to the network. Allowed values are 0 - 1048576.

 

 

 

 

 

 

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 - 1500. Usually, this value is 1500.

 

 

 

 

 

 

Connectivity Check

These fields appear when Interface Properties is External or General.

 

 

 

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.

 

 

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 routing through the

 

 

Tolerance

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 connectivity check. Enter

 

 

address

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.

 

 

 

 

 

 

DHCP Setting

This section appears when Interface Type is internal or general.

 

 

 

 

 

 

DHCP

Select what type of DHCP service the ZyWALL provides to the network. Choices are:

 

 

 

None - the ZyWALL does not provide any DHCP services. There is already a DHCP

 

 

 

server on the network.

 

 

 

DHCP Relay - the ZyWALL routes DHCP requests to one or more DHCP servers you

 

 

 

specify. The DHCP server(s) may be on another network.

 

 

 

DHCP Server - the ZyWALL assigns IP addresses and provides subnet mask, gateway,

 

 

 

and DNS server information to the network. The ZyWALL is the DHCP server for the

 

 

 

network.

 

 

 

 

 

 

 

These fields appear if the ZyWALL is a DHCP Relay.

 

 

 

 

 

 

Relay Server 1

Enter the IP address of a DHCP server for the network.

 

 

 

 

 

 

Relay Server 2

This field is optional. Enter the IP address of another DHCP server for the network.

 

 

 

 

 

 

 

These fields appear if the ZyWALL is a DHCP Server.

 

 

 

 

 

 

119

ZyWALL 110/310/1100 Series User’s Guide