Subject: LLMNR Issue 48: Reachability of routable addresses

From: Bernard Aboba <[email-masked]>
Date: Sun, 14 Sep 2003 06:53:15 -0700 (PDT)

Issue 48: Reachability of routable addresses
Submitter name: Bernard Aboba
Submitter email address: [email-masked]
Date first submitted: September  13, 2003
Reference:
Document: LLMNR-23
Comment type: T
Priority: S
Section: 3
Rationale/Explanation of issue:

If a host has both link-scope and routable addresses, it should only
prefer the routable address in responses if that routable address
is reachable on the interface on which the query was received.
Otherwise the query sender could end up resolving a name to an address
that would not respond to ARP or ND/NS.

In Section 3 change:

"[2] A responder with both link-local and routable addresses
MUST respond to LLMNR queries for A/AAAA RRs only with
routable address(es). This encourages use of routable
address(es) for establishment of new connections."

To:

"[2] A responder with both link-local and routable addresses
on an interface MUST respond to LLMNR queries for
A/AAAA RRs only with routable address(es) reachable
on the interface receiving the query. This encourages
use of routable address(es) for establishment of new
connections."

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