Brocade Communications Systems ServerIron ADX 12.4.00 Service Manual Page 25
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ServerIron ADX NAT64 Configuration Guide 13
53-1002444-02
Advanced stateful NAT64 configuration
2
DRAFT: BROCADE CONFIDENTIAL
The inject-static-route option is used to advertise the subnet defined by the <prefix/length>
variable to 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.
The inject-static-route option is described in detail in “Configuring stateful NAT64 with route
injection” on page 11.
Configuring IPv4 NAT address pools with route injection
In advanced configurations, you can use the inject-static-route option with the nat64 pool
command to ensure that a route to the specified IPv4 subnet is injected 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.
To configure a NAT64 IPv4 address pool and specify a route to the IPv4 subnet, enter a command
such as the following:
ServerIron ADX(config)# nat64 pool nat64-zone1 201.1.1.1 201.1.1.20 prefix-length
24 inject-static-route
In the example, the inject-static-route option is used to ensure that the pool of IPv4 addresses used
to represent the IPv6 clients is made available on the IPv4 network.
Syntax: [no] nat64 pool <pool-name> <start-ipaddress> <end-ipaddress> prefix-length
<prefix-length> [ port-pool-range { 1 | 2 } ] [ inject-static-route ]
NOTE
A maximum of 192 addresses can be configured for the IPv4 NAT address pools.
The <pool-name> variable specifies the name of the IPv4 NAT address pool. The name of the pool
can be up to 255 characters in length.
The <start-ipaddress> variable specifies the IPv4 address at the beginning of the IPv4 NAT address
pool range. This value should be the lowest numbered IPv4 address in the range.
The <end-ipaddress> variable specifies the IPv4 address at the end of the IPv4 NAT address pool
range. This value should be the highest numbered IPv4 address in the range.
The prefix-length option uses the CIDR prefix value specified by the <prefix-length> variable to
distinguish the portion of the IPv4 address that will be used for all IPv4 addresses in the pool. For
example, you can use “24” for the length of the CIDR prefix.
The port-pool-range option enables NAT64 redundancy. A value of 2 specifies a higher priority of
the NAT IP address than a value of 1. A value of 2 also indicates that source ports allocated for the
NAT IP address are from the higher range.
The inject-static-route option injects the <start-ipaddress> /<prefix-length> subnet route into the
routing table, which is then advertised to the adjacent router. This option is described in detail in
“Configuring stateful NAT64 with route injection” on page 11.
- 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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