Technical data

14 ServerIron ADX NAT64 Configuration Guide
53-1002444-02
Advanced stateful NAT64 configuration
2
DRAFT: BROCADE CONFIDENTIAL
NOTE
If the ServerIron ADX runs out of stateful NAT64 NAT pool ports or session entries, new connection
requests are dropped silently.
NOTE
You must reload your ServerIron ADX when the IPv4 NAT address pool configuration is changed.
Stateful NAT64 static route injection configuration example
Figure 5 shows a typical IPv6-only client to IPv4 resource topology configured with router adjacency
relationships on both the IPv4 and IPv6 sides of the ServerIron ADX. In this configuration, routes
defined by the IPv6 prefix and IPv4 NAT address pool are advertised to the adjacent routers and
distributed to the respective networks using the routing protocol configured.
FIGURE 5 NAT64 route injection example
The following example configures the NAT64 gateway for route injection as shown in Figure 5.
1. An IPv6 address is configured: VLAN 10 is configured with VE 10, which has an IPv6 address
(2001:db8:7000::1).
ServerIron ADX(config)# vlan 10
ServerIron ADX(config-vlan-10)# untagged ethernet 1
ServerIron ADX(config-vlan-10)# router-interface ve 10
ServerIron ADX(config-vlan-10)# exit
ServerIron ADX(config)# interface ve 10
ServerIron ADX(config-vif-10)# ipv6 address 2001:db8:7000::1/64
ServerIron ADX(config-vif-10)# exit
2. An IPv4 address is configured: VLAN 20 is configured with VE 20, which has an IP address
(192.168.1.1).
ServerIron ADX(config)# vlan 20
ServerIron ADX(config-vlan-20)# untagged ethernet 3
ServerIron ADX(config-vlan-20)# router-interface ve 20
ServerIron ADX(config-vlan-20)# exit
ServerIron ADX(config)# interface ve 20
ServerIron ADX(config-vif-20)# ip address 192.168.1.1/24
ServerIron ADX(config-vif-20)# exit
3. OSPF and OSPFv6 are configured for static route redistribution. The IPv4 side is configured as
OSPF Area 0. The IPv6 side is configured as OSPF Area 1.
Upstream IPv6
Router
Downstream IPv4
Router
IPv6-only Client
ServerIron ADX
with NAT64
NAT64 Prefix:
2001:db8:8000::0/96
NAT64 IPv4 address pool
192.0.2.1 - 192.0.2.10
IPv4-only Server
port 1
port 2
port 3
OSPF Area 1 OSPF Area 0