ZyXEL Communications ZyWall 110 User Manual page 225

Table 97 Network > Interface > Tunnel > Add/Edit (continued)
LABEL DESCRIPTION
Interface
Parameters
Egress Enter the maximum amount of traffic, in kilobits per second, the ZyWALL/USG can send
Bandwidth
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/USG 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/USG
divides it into smaller fragments. Allowed values are 576 - 1500. Usually, this value is
1500.
Connectivity Check This section is available if you are configuring a GRE tunnel.
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/USG stops routing to the gateway. The
ZyWALL/USG 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/USG regularly ping the gateway you specify to make
sure it is still available.
Select tcp to have the ZyWALL/USG 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/USG stops routing through
Tolerance
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 connectivity check. Enter
address
that domain name or IP address in the field next to it.
Check Port This field displays when you set the Check Method to tcp. Specify the port number to
use for a TCP connectivity check.
Related Setting
WAN TRUNK Click this link to go to a screen where you can configure WAN trunk 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.
OK Click OK to save your changes back to the ZyWALL/USG.
Cancel Click Cancel to exit this screen without saving.
Chapter 9 Interfaces
ZyWALL/USG Series User's Guide
225