Brocade Communications Systems ServerIron ADX 12.4.00 Service Manual Page 27
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ServerIron ADX NAT64 Configuration Guide 15
53-1002444-02
Advanced stateful NAT64 configuration
2
DRAFT: BROCADE CONFIDENTIAL
ServerIron ADX(config)# router ospf
ServerIron ADX(config-ospf-router)# redistribution static
ServerIron ADX(config-ospf-router)# area 0
ServerIron ADX(config-ospf-router)# exit
ServerIron ADX(config)# ipv6 router ospf
ServerIron ADX(config-ospf6-router)# redistribute static
ServerIron ADX(config-ospf6-router)# area 1
ServerIron ADX(config-ospf6-router)# exit
4. Assign the VE interfaces to OSPF or OSPFv6 areas defined previously.
ServerIron ADX(config)# interface ve 10
ServerIron ADX(config-vif-10)# ipv6 ospf area 1
ServerIron ADX(config-vif-10)# exit
ServerIron ADX(config)# interface ve 20
ServerIron ADX(config-vif-20)# ip ospf area 0
ServerIron ADX(config-vif-20)# exit
5. An IPv4 NAT address pool is configured with static route injection.
ServerIron ADX(config)# nat64 pool nat64-zone1 192.0.2.1 192.0.2.10
prefix-length 24 port-pool-range 1 inject-static-route
6. An IPv6 prefix is configured with static route injection.
ServerIron ADX(config)# nat64 ipv6-prefix 2001:db8:8000::0/96
inject-static-route
If you are running a ServerIron ADX build prior to 12.4.00, you must specify an interface and
port number.
ServerIron ADX(config)# nat64 ipv6-prefix 2001:db8:8000::0/96
inject-static-route ve 10
NOTE
While this example describes NAT64 route injection for the OSPF protocol, you can also use this
feature with BGP and IS-IS. Only the routing protocol configurations will differ.
NAT64 sticky session configuration
This section describes steps required to configure NAT64 sticky sessions.
Enabling ServerIron ADX to delete sticky sessions
By default, the stateful NAT64 gateway selects the same NAT64 pool IP address for a given IPv6
client and maintains this IPv6 client-to-NAT64 address mapping by means of a sticky session.
The same NAT64 pool IP address is selected for all subsequent flows from the client for as long as
this sticky session exists, However, under certain heavy traffic conditions, the NAT64 pool might
run out of ports. In such an event, new connections from the same client are dropped by the NAT64
gateway.
To override this behavior, configure the nat64 nat-sticky-delete command to enable the NAT64
gateway to delete an existing sticky session that has run out of available ports and select a
different NAT64 pool IP address for the same client.
ServerIron ADX(config)# nat64 nat-sticky-delete
Syntax: [no] nat64 nat-sticky-delete
- 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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