HP VPN Firewall Appliances VPN Command Reference

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Use undo aft prefix-ivi to delete a specific IVI prefix.
Syntax
aft prefix-ivi ivi-prefix
undo aft prefix-ivi ivi-prefix
Default
No IVI prefix is specified.
Views
System view
Default command level
2: System level
Parameters
ivi-prefix: Specifies the IVI prefix of an IPv6 address.
Usage guidelines
The length of an IVI prefix is 32 bits. If an IPv6 address matches the specified IVI prefix format, AFT
extracts the IPv4 address embedded in the IPv6 address to translate the IPv6 address into an IPv4
address.
The DNS64 prefix cannot be the same as the IVI prefix. Otherwise, an IPv6 host cannot communicate
with another IPv6 host whose address has an IVI prefix the AFT device performs address translation for
the packet and send it to the IPv4 network.
Examples
# Specify the IVI prefix as 3000:db8e::.
<Sysname> system-view
[Sysname] aft prefix-ivi 3000:db8e::
Related commands
display aft all
aft v4tov6
Use aft v4tov6 to configure a 4to6 AFT policy.
Use undo aft v4tov6 to delete a specific AFT policy.
Syntax
aft v4tov6 acl number acl-number { prefix-dns64 dns64-prefix prefix-length | prefix-ivi ivi-prefix }
undo aft v4tov6 acl number acl-number
Views
System view
Default command level
2: System level
Parameters
acl number acl-number: Specifies an IPv4 ACL for matching IPv4 packets, in the range of 2000 to 3999.