Analysis of Potential Solutions for Revealing a Host Identifier (HOST_ID) in Shared Address Deployments, June 2013
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This document is a collection of potential solutions for revealing a host identifier (denoted as HOST_ID) when a Carrier Grade NAT (CGN) or application proxies are involved in the path. This host identifier could be used by a remote server to sort packets according to the sending host. The host identifier must be unique to each host under the same shared IP address.
This document analyzes a set of potential solutions for revealing a host identifier and does not recommend a particular solution, although it does highlight the hazards of some approaches.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.