IETF - RFC 9131
Gratuitous Neighbor Discovery: Creating Neighbor Cache Entries on First‑Hop Routers
active, Most Current
| Organization: | IETF |
| Publication Date: | 1 October 2021 |
| Status: | active |
| Page Count: | 20 |
scope:
Abstract
Neighbor Discovery (RFC 4861) is used by IPv6 nodes to determine the link-layer addresses of neighboring nodes as well as to discover and maintain reachability information. This document updates RFC 4861 to allow routers to proactively create a Neighbor Cache entry when a new IPv6 address is assigned to a node. It also updates RFC 4861 and recommends that nodes send unsolicited Neighbor Advertisements upon assigning a new IPv6 address. These changes will minimize the delay and packet loss when a node initiates connections to an off-link destination from a new IPv6 address.
Document History
RFC 9131
October 1, 2021
Gratuitous Neighbor Discovery: Creating Neighbor Cache Entries on First‑Hop Routers
Abstract
Neighbor Discovery (RFC 4861) is used by IPv6 nodes to determine the link-layer addresses of neighboring nodes as well as to discover and maintain reachability information. This document...