ZyXEL Communications USG40 User Manual page 181

Table 78 Configuration > Network > Interface > PPP > Add (continued)
LABEL DESCRIPTION
Enable Rapid Select this to shorten the DHCPv6 message exchange process from four to two steps.
Commit
This function helps reduce heavy network traffic load.
Note: Make sure you also enable this option in the DHCPv6 clients to make rapid commit
Request Address Select this to get an IPv6 IP address for this interface from the DHCP server. Clear this
to not get any IP address information through DHCPv6.
DHCPv6 Request Use this section to configure DHCPv6 request settings that determine what additional
Options
information to get from the DHCPv6 server.
Add Click this to create an entry in this table. See
information.
Remove Select an entry and click this to delete it from this table.
Object Select an entry and click Object Reference to open a screen that shows which
Reference
settings use the entry. See
# This field is a sequential value, and it is not associated with any entry.
Name This field displays the name of the DHCPv6 request object.
Type This field displays the type of the object.
Value This field displays the IPv6 prefix that the ZyWALL/USG will advertise to its clients.
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.
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 - 1492. Usually, this value is
1492.
Connectivity Check 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
Chapter 8 Interfaces
work.
Section 8.3.2 on page 173
ZyWALL/USG Series User's Guide
181
Section 8.3.4 on page 174
for an example.
for more