Technical data

ServerIron ADX NAT64 Configuration Guide 13

53-1002288-02

Route injection NAT64

DRAFT: BROCADE CONFIDENTIAL

IPv6-only client to IPv4 resource sample configuration

The following example provides the commands required on a ServerIron ADX to enable the basic

IPv6-only client to IPv4 resource configuration shown in Figure 5.

FIGURE 5 NAT64 stateful example

ServerIron ADX(config) nat64 pool nat54-zone1 192.0.2.1 192.0.2.10 prefix-length

ServerIron ADX(config) nat64 ipv6-prefix 2001:db8:eee::/96

ServerIron ADX(config)interface ethernet 5

ServerIron ADX(config-if-1000-5) ip address 100.1.1.100 255.255.255.0

ServerIron ADX(config-if-1000-5) exit

ServerIron ADX(config)interface ethernet 6

ServerIron ADX(config-if-1000-6) ipv6 address 2001:db8:ddd::1/64

Route injection NAT64

As described previously, IPv6 prefix addresses are defined on the ServerIron ADX to represent IPv4

resources to IPv6 clients. Also, a pool of IPv4 addresses is defined on the ServerIron ADX to

represent the IPv6 clients to the IPv4 resources. The addresses assigned for these translations

need to be made available as destinations in the routing tables of the IPv6 and IPv4 networks that

they reside in. For this reason, we provide command options that direct the ServerIron ADX to inject

routes to these addresses. Route distribution is then performed using any of the routing protocols

supported by the ServerIron ADX: OSFP, IS-IS and BGP (IPv4 and IPv6).

NAT64 route injection requires that the ServerIron ADX have a routing adjacency relationship with a

router for the protocols you want to support route distribution with. For the IPv4 address pool, the

nat64 pool command has the inject-static-route option which injects a route to the subnet into the

local routing table. This route is then advertised as the destination for traffic bound for the subnet

by the routing protocol that is configured on the ServerIron ADX.

IPv4

ServerIron ADX

with NAT64

DNS 64 Server

IPv6-only Client

IPv6

IPv6 + IPv4

NAT64 Prex:

2001:db8:eee:/96

NAT64 IPv4 address pool

192.0.2.1 - 192.0.2.10

IPv4 address:

100.1.1.1

IPv4-only Server

IPv6 address:

2001:db8:ccc::1

Ethernet Port 5: IP address 100.1.1.100

Ethernet Port 6: IPv6 address 2001.db8.ddd.1