Technical data

ServerIron ADX NAT64 Configuration Guide 33
53-1002444-02
Stateless NAT64 static mapping configuration
3
DRAFT: BROCADE CONFIDENTIAL
Tasks to configure a ServerIron ADX for advanced static mapping with route injection include the
following:
• “Configuring static NAT64 IPv6 prefixes with route injection” on page 33
• “Configuring static NAT64 IPv4 prefixes with route injection” on page 33
• “Configuring NAT64 static mapping” on page 34
Configuring static NAT64 IPv6 prefixes with route injection
The NAT64 gateway uses a NAT64 IPv6 prefix to create a synthesized IPv6 address to represent
IPv4 resources to the IPv6 network.
To specify an IPv6 prefix and a route to the subnet defined by that prefix, enter a command such as
the following:
ServerIron ADX(config)# nat64 ipv6-prefix 2001:db8:8000::0/96 inject-static-route
stateless
Syntax: [no] nat64 ipv6-prefix <prefix/length> [inject-static-route ] stateless
The <prefix/length> variable specifies the NAT64 IPv6 prefix that will be used by the ServerIron
ADX when operating as a NAT64 gateway. Currently, the only supported prefix length is 96.
The stateless operand is required for stateless NAT64 gateway configurations. Only one IPv6 prefix
can be designated as stateless using this option.
The inject-static-route option is used to advertise the subnet defined by the <prefix/length>
variable on the IPv6 network.
In ServerIron ADX releases prior to 12.4.00, you must also identify either an Ethernet or VE
interface and port number on the NAT64 gateway for static route injection. The specified interface
must have an IPv6 address and be directly connected to an adjacent router.
Syntax: [no] nat64 ipv6-prefix <prefix/length> [inject-static-route {ve <port-number> | ethernet
<port-number>} ]
The ve <port-number> or ethernet <port-number> variable specifies an IPv6 interface that is
connected to the adjacent IPv6 router.
Configuring static NAT64 IPv4 prefixes with route injection
In a NAT64 configuration, the IPv4 prefix defines the range of IPv4 addresses that can be used to
represent the IPv4 resources to the IPv6 network.
Use the nat64 ipv4-prefix command to specify an IPv4 prefix with a subnet mask. By including the
inject-static-route option, you can direct the ServerIron ADX to inject a static route to every mapped
address within the subnet defined by the IPv4 prefix.
Enter a command such as the following:
ServerIron ADX(config)# nat64 ipv4-prefix 200.1.1.0/24 inject-static-route
Syntax: [no] nat64 ipv4-prefix <prefix/subnet> [inject-static-route]
The <prefix/subnet> variable specifies the NAT64 IPv6 prefix that will be used by the ServerIron
ADX when operating as a NAT64 gateway.