ZyXEL Communications USG40 User Manual page 333

Table 118 Configuration > Network > Interface > Bridge > Add / Edit (continued)
LABEL DESCRIPTION
Router Select the router preference (Low, Medium or High) for the interface. The interface
Preference
sends this preference in the router advertisements to tell hosts what preference they
should use for the ZyWALL/USG. This helps hosts to choose their default router
especially when there are multiple IPv6 router in the network.
Note: Make sure the hosts also support router preference to make this function work.
MTU The Maximum Transmission Unit. Type the maximum size of each IPv6 data packet, in
bytes, that can move through this interface. If a larger packet arrives, the ZyWALL/
USG divides it into smaller fragments.
Hop Limit Enter the maximum number of network segments that a packet can cross before
reaching the destination. When forwarding an IPv6 packet, IPv6 routers are required to
decrease the Hop Limit by 1 and to discard the IPv6 packet when the Hop Limit is 0.
Advertised Configure this table only if you want the ZyWALL/USG to advertise a fixed prefix to the
Prefix Table
network.
Add Click this to create an IPv6 prefix address.
Edit Select an entry in this table and click this to modify it.
Remove Select an entry in this table and click this to delete it.
# This field is a sequential value, and it is not associated with any entry.
IPv6 Enter the IPv6 network prefix address and the prefix length.
Address/
Prefix Length
The prefix length indicates what the left-most part of the IP address is the same for all
computers in the network, that is, the network address.
Advertised Use this table to configure the network prefix if you want to use a delegated prefix as
Prefix from
the beginning part of the network prefix.
DHCPv6 Prefix
Delegation
Add Click this to create an entry in this table.
Edit Select an entry in this table and click this to modify it.
Remove Select an entry in this table and click this to delete it.
# This field is a sequential value, and it is not associated with any entry.
Delegated Select the DHCPv6 request object to use for generating the network prefix for the
Prefix
network.
Suffix Enter the ending part of the IPv6 network address plus a slash (/) and the prefix
Address
length. The ZyWALL/USG will append it to the selected delegated prefix. The combined
address is the network prefix for the network.
For example, you got a delegated prefix of 2003:1234:5678/48. You want to divide it
into 2003:1234:5678:1111/64 for this interface and 2003:1234:5678:2222/64 for
another interface. You can use ::1111/64 and ::2222/64 for the suffix address
respectively. But if you do not want to divide the delegated prefix into subnetworks,
enter ::0/48 here, which keeps the same prefix length (/48) as the delegated prefix.
Address This is the final network prefix combined by the selected delegated prefix and the
suffix.
Note: This field displays the combined address after you click OK and reopen this
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.
Chapter 10 Interfaces
screen.
ZyWALL/USG Series User's Guide
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