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Chapter 10 Interface
ZyWALL USG 100/200 Series User’s Guide
211
Ingress
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 - 1500.
Usually, this value is 1500.
Connectivity Check This option is available for the WAN and OPT interfaces. 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
Connectivity
Check
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.
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
Toleranc e
Enter the number of consecutive failures before the ZyWALL stops routing
through the gateway.
Check Default
Gateway
Select this to use the default gateway for the connectivity check.
Check this
address
Select this to specify a domain name or IP address for the 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
Add this
interface to
WAN_TRUNK
for WAN load
balance.
This option only displays for the WAN Ethernet interfaces. Select this option to
use the interface as part of a WAN trunk for load balancing.
PPPoE/PPTP This option is available for the WAN and OPT interfaces. Click this link if this
interface’s Internet connection uses PPPoE or PPTP.
VLAN This option is available for the OPT interface. Click this link if you want to
configure a VLAN interface for this Ethernet interface.
WAN TRUNK This option is available for the OPT interface. Click this link to go to a screen
where you can set this interface to be part of a WAN trunk for load balancing.
Policy Route Click this link to go to the screen where you can manually configure a policy
route to associate traffic with this interface.
Add a default
lan1 Policy
Route for WAN
access.
This option is available for the LAN and DMZ interfaces. Click this link to
automatically configure a policy route to allow traffic that comes in through the
LAN or DMZ interface to go out through the WAN.
Table 51 Network > Interface > Ethernet > Edit (continued)
LABEL DESCRIPTION