ZyXEL Communications ZYWALL USG 2000 Manual page 220

Chapter 10 Interface
Table 59 Network > Interface > VLAN > Edit (continued)
LABEL
MTU
Connectivity
Check
Enable
Connectivity
Check
Check Method
Check Period
Check Timeout Enter the number of seconds to wait for a response before the
Check Fail
Tolerance
Check Default
Gateway
Check this
address
Check Port
DHCP
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
220
DESCRIPTION
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.
The ZyWALL can regularly check the connection to the gateway you
specified to make sure it is still available. You specify how often to
check 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.
Select this to turn on the connection check.
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.
Enter the number of seconds between connection check attempts.
attempt is a failure.
Enter the number of consecutive failures before the ZyWALL stops
routing through the gateway.
Select this to use the default gateway for the connectivity check.
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.
This field only displays when you set the Check Method to tcp.
Specify the port number to use for a TCP connectivity check.
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.
the network.
These fields appear if the ZyWALL is a DHCP Server.
ZyWALL USG 2000 User's Guide