- play_arrow Overview
- play_arrow Next Gen Services Overview
- play_arrow Configuration Overview
- Configuration Differences Between Adaptive Services and Next Gen Services on the MX-SPC3
- Next Gen Services Feature Configuration Overview
- How to Configure Services Interfaces for Next Gen Services
- How to Configure Interface-Style Service Sets for Next Gen Services
- How to Configure Next-Hop Style Service Sets for Next Gen Services
- How to Configure Service Set Limits for Next Gen Services
- Example: Next Gen Services Inter-Chassis Stateful High Availability for NAT and Stateful Firewall (MX-SPC3)
- Example: Configuring AutoVPN with Pre-Shared Key
- Enabling and Disabling Next Gen Services
- play_arrow Global System Logging Overview and Configuration
- Understanding Next Gen Services CGNAT Global System Logging
- Enabling Global System Logging for Next Gen Services
- Configuring Local System Logging for Next Gen Services
- Configuring System Logging to One or More Remote Servers for Next Gen Services
- System Log Error Messages for Next Gen Services
- Configuring Syslog Events for NAT Rule Conditions with Next Gen Services
- play_arrow Next Gen Services SNMP MIBS and Traps
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- play_arrow Stateful Firewall Services
- play_arrow Stateful Firewall Services Overview and Configuration
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- play_arrow Intrusion Detection Services
- play_arrow IDS Screens for Network Attack Protection Overview and Configuration
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- play_arrow Traffic Load Balancing
- play_arrow Traffic Load Balancing Overview and Configuration
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- play_arrow DNS Request Filtering
- play_arrow DNS Request Filtering Overview and Configuration
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- play_arrow URL Filtering
- play_arrow URL Filtering
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- play_arrow Integration of Juniper ATP Cloud and Web filtering on MX Routers
- play_arrow Integration of Juniper ATP Cloud and Web filtering on MX Routers
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- play_arrow Aggregated Multiservices Interfaces
- play_arrow Enabling Load Balancing and High Availability Using Multiservices Interfaces
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- play_arrow Inter-Chassis Services PIC High Availability
- play_arrow Inter-Chassis Services PIC High Availability Overview and Configuration
- Next Gen Services Inter-chassis High Availability Overview for NAT, Stateful Firewall, and IDS Flows
- Inter-Chassis Stateful Synchronization for Long Lived NAT, Stateful Firewall, and IDS Flows for Next Gen Services
- Inter-Chassis Services Redundancy Overview for Next Gen Services
- Configuring Inter-Chassis Services Redundancy for Next Gen Services
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- play_arrow Application Layer Gateways
- play_arrow Enabling Traffic to Pass Securely Using Application Layer Gateways
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- play_arrow NAT, Stateful Firewall, and IDS Flows
- play_arrow Inline NAT Services Overview and Configuration
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- play_arrow Configuration Statements
IPv4 Addresses Embedded in IPv6 Addresses
Stateful NAT64 and XLAT464 embed IPv4 addresses in IPv6 addresses by using an IPv6 prefix that you specify. The prefix length you use determines how the IPv4 address is embedded.
IPv6 addresses with embedded IPv4 addresses are composed of a variable-length prefix, the embedded IPv4 address, and a variable-length suffix. Bits 64 to 71 are reserved and must be set to 0. The suffix follows the last bit of the embedded IPv4 address, and the suffix bits are ignored and should be set to 0.
The format for the IPv4-embedded IPv6 address depends on the prefix length, as shown in Table 1.
Prefix length | Prefix bits | IPv4 address bits | Reserved bits (must be set to 0) | Suffix bits |
---|---|---|---|---|
32 | 0-31 | 32 to 63 | 64 to 71 | 72 to 127 |
40 | 0 to 39 | 40 to 63 and 72 to 79 | 64 to 71 | 80 to 127 |
48 | 0 to 47 | 48 to 63 and 72 to 87 | 64 to 71 | 88 to 127 |
56 | 0 to 55 | 56 to 63 and 72 to 95 | 64 to 71 | 96 to 127 |
64 | 0 to 63 | 72 to 103 | 64 to 71 | 104 to 127 |
96 | 0 to 95 | 96 to 127 | 64 to 71 | No suffix bits |
The following table shows an example of an IPv4 address embedded in an IPv6 address for various prefix lengths.
IPv6 Prefix | IPv4 Address | IPv4 Address Embedded in IPv6 Address |
---|---|---|
2001:db8::/32 | 192.0.2.33 | 2001:db8:c000:221:: |
2001:db8:100::/40 | 192.0.2.33 | 2001:db8:1c0:2:21:: |
2001:db8:122::/48 | 192.0.2.33 | 2001:db8:122:c000:2:2100:: |
2001:db8:122:300::/56 | 192.0.2.33 | 2001:db8:122:3c0:0:221:: |
2001:db8:122:344::/64 | 192.0.2.33 | 2001:db8:122:344:c0:2:2100:: |
2001:db8:122:344::/96 | 192.0.2.33 | 2001:db8:122:344::192.0.2.33 |