RFC 5735: Special Use IPv4 Addresses - RFC Editor
RFC 5735 Special Use IPv4 Addresses January 2010 127.0.0.0/8 - This block is assigned for use as the Internet host loopback address. A datagram sent by a higher-level protocol to an address anywhere within this block loops back inside the host.
RFC 4291: IP Version 6 Addressing Architecture - RFC Editor
The Loopback Address The unicast address 0:0:0:0:0:0:0:1 is called the loopback address. It may be used by a node to send an IPv6 packet to itself. It must not be assigned to any physical interface.
RFC 7527: Enhanced Duplicate Address Detection - RFC Editor
This document includes mitigation techniques and outlines the Enhanced DAD algorithm to automate the detection of looped back IPv6 ND messages used by DAD. For network loopback tests, the Enhanced DAD algorithm allows IPv6 to self …
Information on RFC 7527 - RFC Editor
This document includes mitigation techniques and outlines the Enhanced DAD algorithm to automate the detection of looped back IPv6 ND messages used by DAD. For network loopback tests, the Enhanced DAD algorithm allows IPv6 to self …
In Situ Operations, Administration, and Maintenance (IOAM) Loopback …
The Loopback flag is used to request that each transit device along the path loops back a truncated copy of the data packet to the sender. Loopback allows an IOAM encapsulating node to trace the path to a given destination and to receive per …
RFC 3330: Special-Use IPv4 Addresses - RFC Editor
127.0.0.0/8 - This block is assigned for use as the Internet host loopback address. A datagram sent by a higher level protocol to an address anywhere within this block should loop back inside the host.
RFC 6849: An Extension to the Session Description Protocol
Loopback-Role Attributes: loopback-source and loopback-mirror The loopback role defines two property media attributes that are used to indicate the role of the agent generating the SDP offer or answer.
RFC 7706: Decreasing Access Time to Root Servers by Running One on Loopback
This document describes a method for the operator of a recursive resolver to greatly speed these queries and to hide them from outsiders. The basic idea is to create an up-to-date root zone server on a loopback address on the same host as the recursive server, and use that server when the recursive resolver looks up root information.
RFC 4862: IPv6 Stateless Address Autoconfiguration - RFC Editor
A straightforward way to implement this facility is to disable loopback at the hardware level (if supported by the hardware), with packets looped back (if requested) by software.
2.1.3. Loopback Addresses Many operators reserve a /64 block for all loopback addresses in their infrastructure and allocate a /128 out of this reserved /64 prefix for each loopback interface. This practice facilitates configuration of Access Control List (ACL) rules to enforce a security policy for those loopback addresses. 2.1.1. Use of ULAs