Your text is misleading. Just use what I told you. And your last point isn’t true in a decentralized NAT environment. But for this document’s scope, use RTR as the xTR term.
Dino > On Feb 18, 2026, at 6:34 AM, Luigi Iannone <[email protected]> wrote: > > Hi Dino, > > DO you meqns the “Second … “ Sentence? > > What about: > > Second, LISP protocol requires an xTR > to receive traffic on the specific UDP port 4341, hence, the random > UDP port allocated by the NAT on its public side is not used by other > xTRs to send LISP traffic. > > Better? > > L. > > > >> On 16 Feb 2026, at 19:06, Dino Farinacci <[email protected]> wrote: >> >> Luigi, to be more precise, this paragraph sound say: >> >> <Screenshot 2026-02-16 at 10.03.48 AM.png> >>> >>> >> >> The xTR needs to receive traffic with the destination port equal to the >> translated port and the source port equal to the well-known port 4341. >> >> Dino >> >>>> On Feb 16, 2026, at 5:26 AM, [email protected] wrote: >>> >>> Internet-Draft draft-ietf-lisp-nat-traversal-01.txt is now available. It is >>> a >>> work item of the Locator/ID Separation Protocol (LISP) WG of the IETF. >>> >>> Title: NAT traversal for LISP >>> Author: Luigi Iannone >>> Name: draft-ietf-lisp-nat-traversal-01.txt >>> Pages: 28 >>> Dates: 2026-02-16 >>> >>> Abstract: >>> >>> This document describes a mechanism for IPv4 NAT traversal for LISP >>> tunnel routers (xTR) and LISP Mobile Nodes (LISP-MN) behind a Network >>> Address Translator (NAT) device. A LISP device both detects the NAT >>> and initializes its state. Forwarding to the LISP device through a >>> NAT is enabled by the LISP Re-encapsulating Tunnel Router (RTR) >>> network element, which acts as an anchor point in the data plane, >>> forwarding traffic from unmodified LISP devices through the NAT. >>> >>> The IETF datatracker status page for this Internet-Draft is: >>> https://datatracker.ietf.org/doc/draft-ietf-lisp-nat-traversal/ >>> >>> There is also an HTMLized version available at: >>> https://datatracker.ietf.org/doc/html/draft-ietf-lisp-nat-traversal-01 >>> >>> A diff from the previous version is available at: >>> https://author-tools.ietf.org/iddiff?url2=draft-ietf-lisp-nat-traversal-01 >>> >>> Internet-Drafts are also available by rsync at: >>> rsync.ietf.org::internet-drafts >>> >>> >>> _______________________________________________ >>> lisp mailing list -- [email protected] >>> To unsubscribe send an email to [email protected] >> >> _______________________________________________ >> lisp mailing list -- [email protected] >> To unsubscribe send an email to [email protected] > _______________________________________________ lisp mailing list -- [email protected] To unsubscribe send an email to [email protected]
