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This commit introduces extensive documentation for VyOS VPP (Vector Packet Processing) Dataplane interfaces and features, including examples. Features documented: * VPP integration description, base requirements and limitations * VPP dataplane core settings * Features enabled in the dataplane: ACL, IPsec, NAT, sFlow * VPP interface types: bonding, bridge, GRE, IPIP, kernel, loopback, VXLAN, XConnect Note: This is an initial documentation version that will require ongoing improvements based on user feedback and questions, real-world deployment testing and validation, additional use cases and configuration scenarios discovered in production. Therefore, all pages are marked as "need improvement".
35 lines
988 B
ReStructuredText
35 lines
988 B
ReStructuredText
:lastproofread: 2025-09-04
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.. _vpp_config_nat_index:
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.. include:: /_include/need_improvement.txt
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#####################
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VPP NAT Configuration
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#####################
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.. toctree::
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:maxdepth: 1
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:includehidden:
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cgnat
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nat44
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VPP Dataplane in VyOS supports two types of NAT:
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NAT44
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=====
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This type is a classical NAT implementation where you can configure static and
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dynamic NAT rules. It supports both source and destination NAT - while the configuration may looks a bit unusual in comparison to traditional NAT implementations.
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CGNAT
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=====
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CGNAT is a special type of NAT44, which is highly useful for use cases where you have multiple local customers with a limited number of public IP addresses, and want to share public IP address space fairly between them. It uses a combination of IP address and port number to distinguish between different customers.
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This type of NAT is often used by ISPs to provide internet access to their customers.
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It supports only source NAT.
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