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30 ServerIron ADX NAT64 Configuration Guide
53-1002444-02
Stateless NAT64 static mapping configuration
3
DRAFT: BROCADE CONFIDENTIAL
FIGURE 9 Stateless NAT64 translation
Populating the NAT64 mapping table
The stateless NAT64 gateway uses a mapping table to translate an IPv6 client address to an IPv4
address.
This mapping table can be configured manually (using static mapping) or generated dynamically
(using real-time dynamic learning or prefetched dynamic learning). In a stateless NAT64
configuration, all address mappings are one-to-one.
In configurations using static mapping, all entries in the NAT64 gateway mapping table are
manually defined using the nat64 map command.
Dynamically generated mapping tables can be populated in real time by way of real-time dynamic
learning or pre-populated by way of prefetched dynamic learning.
Stateless NAT64 static mapping configuration
In stateless NAT64 configurations using static mapping, the mapping table used to match IPv6 and
IPv4 addresses is populated manually using the nat64 map command.
Route injection can be used in advanced static mapping configurations to inject IPv6 and IPv4
addresses into the respective network routing tables. Route distribution is then performed using
any one of the routing protocols supported by ServerIron ADX: OSPF, IS-IS, and BGP (IPv6 to IPv4).
This section is divided into three topics:
• Basic stateless NAT64 static mapping configuration: This topic describes the tasks required to
configure a basic stateless NAT64 gateway.
• Stateless NAT64 static mapping configuration with route injection: This topic describes the
tasks required to configure a stateless NAT64 gateway that uses static route injection.
DNS Server
Stateless NAT64 Translation
2001:db8:80::80 192.0.2.1
NAT64 Gateway
Source IP = 200.1.1.1
Destination IP = 192.0.2.1
Source IP = 2001:db8:64::192.0.2.1
Destination IP = 2001:db8:80::80
Source IP = 192.0.2.1
Destination IP = 200.1.1.1
IPv6 Client IPv4 Server
Source IP = 2001:db8:80::80
Destination IP = 2001:db8:64::192.0.2.1
- ServerIron ADX 1
- Document History 2
- Contents 3
- About This Document 9
- Command syntax conventions 10
- Notice to the reader 11
- Related publications 11
- Getting technical help 11
- NAT64 and NAT46 Overview 13
- Stateless NAT46 translation 14
- Protocol support 15
- NAT64 fragmentation support 17
- References 18
- Stateful NAT64 Configuration 19
- Operation of stateful NAT64 20
- 53-1002444-02 23
- Enabling connection logging 28
- Displaying NAT64 information 31
- Displaying NAT64 translations 32
- Displaying NAT64 statistics 33
- Displaying NAT64 resources 37
- Stateless NAT64 Configuration 39
- Operation of stateless NAT64 40
- High availability for NAT64 52
- Clearing NAT64 information 53
- Stateless NAT46 Configuration 55
- Operation of stateless NAT46 56
- High availability for NAT46 67
- Displaying NAT46 information 68
- Clearing NAT46 information 69
- Access Control Lists 71
- Rule-based ACLs 72
- Default ACL action 74
- ACL IDs and entries 74
- Configuring rule-based ACLs 77
- Modifying rule-based ACLs 85
- Reordering ACLs 86
- Applying ACLs to interfaces 87
- Adding comments to named ACLs 89
- ACL logging 94
- Displaying ACL log entries 95
- Clearing the ACL statistics 97
- Throttling the fragment rate 98
- DRAFT: BROCADE CONFIDENTIAL 100
- Enabling strict TCP mode 101
- Enabling strict UDP mode 102
- ACLs and ICMP 103
- Numbered ACLs 104
- Named ACLs 105
- • Enable the strict TCP mode 107
- IPv6 Access Control Lists 109
- Configuration notes 110
- Processing of IPv6 ACLs 110
- Configuring IPv6 ACLs 111
- IPv6 ACL syntax 114
- Syntax Description 116
- Displaying IPv6 ACLs 118
- Logging IPv6 ACLs 119
- Network Address Translation 121
- Configuring NAT 122
- Configuring static NAT 123
- Configuring dynamic NAT 123
- Enabling IP NAT 124
- NAT configuration examples 125
- IP NAT with VIP overlap 129
- Translation timeouts 130
- Stateless static IP NAT 132
- IP NAT redundancy 133
- Displaying NAT information 144
- Displaying NAT translation 147
- Displaying VRRPE information 148
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