Chapter 7 Interfaces

 

 

 

 

Table 53 Configuration > Network > Interface > VLAN > Create Virtual Interface (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. 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

 

 

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 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 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 delegated prefix and the suffix.

 

 

Note: This field displays the combined address after you click OK and reopen this

 

 

screen.

 

 

 

 

Interface

 

 

Parameters

 

 

 

 

 

Egress

Enter the maximum amount of traffic, in kilobits per second, the ZyWALL 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 can receive

 

 

 

 

from the network through the interface. Allowed values are 0 - 1048576.

 

 

 

 

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ZyWALL 110/310/1100 Series User’s Guide