excluded-ipv6-address

Function

The excluded-ipv6-address command reserves a specified IPv6 address to prevent it from being allocated to users.

The undo excluded-ipv6-address command releases the reserved IPv6 address.

The excluded-ipv6-prefix command reserves a specified IPv6 prefix to prevent it from being allocated to users.

The undo excluded-ipv6-prefix command releases the reserved IPv6 prefix.

By default, no IPv6 address is reserved.

By default, no IPv6 prefix is reserved.

This command is supported only on the NetEngine 8000 F1A.

Format

excluded-ipv6-address start-ipv6-address [ end-ipv6-address ]

excluded-ipv6-prefix start-ipv6-prefix/prefix-length [ end-ipv6-prefix/prefix-length ]

undo excluded-ipv6-address start-ipv6-address [ end-ipv6-address ]

undo excluded-ipv6-prefix start-ipv6-prefix/prefix-length [ end-ipv6-prefix/prefix-length ]

Parameters

Parameter	Description	Value
start-ipv6-address	Specifies the start IPv6 address.	The address is a 32-digit hexadecimal number.
end-ipv6-address	Specifies the end IPv6 address.	The address is a 32-digit hexadecimal number.
excluded-ipv6-prefix start-ipv6-prefix/prefix-length	Specifies the start IPv6 prefix or prefix length.	The address is a 32-digit hexadecimal number in the format of X:X::X:X/M.
excluded-ipv6-prefix end-ipv6-prefix/prefix-length	Specifies the end IPv6 prefix or prefix length.	The address is a 32-digit hexadecimal number in the format of X:X::X:X/M.

Views

IPv6 prefix pool view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
ipv6pool	write

Usage Guidelines

Usage Scenario

To reserve some IPv6 addresses for future use in network planning, run the excluded-ipv6-address command.

To reserve some IPv6 prefixes for future use in network planning, run the excluded-ipv6-prefix command.

Configuration Impact

If the excluded-ipv6-address command is run several times, all the reserved IPv6 addresses cannot be allocated to users.

If the excluded-ipv6-prefix command is run several times, all the reserved IPv6 prefixes cannot be allocated to users.

Precautions

When no end IPv6 address is configured, only the start IPv6 address is reserved. When no end IPv6 prefix is configured, only the start IPv6 prefix is reserved.

The excluded-ipv6-address command is used to configure the local prefix pool. The excluded-ipv6-prefix command is used to configure the delegation prefix pool.

Example

# Reserve the IPv6 prefix 2001:db8::/64 in the prefix pool.

<HUAWEI> system-view
[~HUAWEI] ipv6 prefix pre2 delegation
  Info:Create a prefix pool
[*HUAWEI-ipv6-prefix-pre2] commit
[~HUAWEI-ipv6-prefix-pre2] prefix 2001:db8::/60
[~HUAWEI-ipv6-prefix-pre2] excluded-ipv6-prefix 2001:db8::/64

# Reserve the IPv6 address 2001:db8::1 in the prefix pool.

<HUAWEI> system-view
[~HUAWEI] ipv6 prefix pre1 local
  Info:Create a prefix pool
[~HUAWEI-ipv6-prefix-pre1] prefix 2001:db8::1/126
[~HUAWEI-ipv6-prefix-pre1] excluded-ipv6-address 2001:db8::1