Re: Request for new link-layer type: LINKTYPE_DECT_NR_TAP (DLT_DECT_NR_TAP = 304)

[Edem Khadiev via tcpdump-workers <tcpdump-workers () lists tcpdump org>]

> --- Begin Message ---
>
>
> From: Edem Khadiev <edem.khadiev () dsr-corporation com>
>
> Date: Tue, 5 May 2026 08:57:39 +0300
>
> Hi tcpdump-workers team,
>
> Just following up on my message from a week ago—did you have a chance to 
> receive and review it? Happy to provide more details if helpful.
>
> Best Regards,
> Edem
>
> Edem Khadiev| Systems Software Engineer| DSR Corporation 
> <https://dsr-corporation.com>| E-mail: edem.khadiev () dsr-corporation com
>
> DSR logo
>
> ------------------------------------------------------------------------
>
> CONFIDENTIALITY NOTICE: This e-mail transmission, and any documents, 
> files or previous e-mail messages attached to it, is confidential and/or 
> legally privileged. If you are not the intended recipient, or a person 
> responsible for delivering it to the intended recipient, any use, 
> disclosure or copying of this email or any attachments is expressly 
> prohibited. If you have received this transmission in error, please 
> immediately notify the sender by reply email, and destroy the original 
> transmission and its attachments without reading or saving in any manner.
>
> VIRUS: Every care has been taken to ensure this email and its 
> attachments are virus free, however, any loss or damage incurred in 
> using this email is not the sender's responsibility. It is your 
> responsibility to ensure virus checks are completed before installing 
> any data sent in this email to your computer.
>
> On 4/28/26 3:06 PM, Edem Khadiev wrote:
> > Hi tcpdump‑workers,
> >
> > I would like to request a new link‑layer header type for PCAP/PCAP‑NG 
> > capture files, based on the DECT‑2020 New Radio (NR) link type.
> >
> > The proposed values are:
> >
> >   * LINKTYPE name: *LINKTYPE_DECT_NR_TAP*
> >   * DLT name: *DLT_DECT_NR_TAP*
> >   * Value: *304*
> >
> > This type is intended for DECT‑2020 NR frames (MAC and DLC‑layer 
> > frames as defined by ETSI TS 103‑636‑4 and TS 103‑636‑5) that are 
> > captured with a custom metadata TAP‑style header prepended. The inner 
> > payload is otherwise identical to DLT_DECT_NR as used in existing 
> > DLT_DECT_NR captures.
> >
> > The specification for LINKTYPE_DECT_NR_TAP can be found in the 
> > attached file _linktype_dect_nr_tap.md_ and is publicly available at 
> > https://github.com/DSRCorporation/dect-nr-tap
> >
> > This type is analogous to LINKTYPE_IEEE802_11_RADIOTAP and 
> > LINKTYPE_IEEE802_15_4_TAP: it adds a metadata header without changing 
> > the underlying MAC‑layer format.
> >
> >
> > Goals:
> >
> >   * Reuse DLT_DECT_NR parsing for the inner payload.
> >   * Allow tools such as tcpdump, Wireshark, etc., to expose metadata
> >     (e.g., RSSI, SNR, channel, transaction ID) from the TLV header.
> >
> > References:
> >
> >   * ETSI TS 103‑636‑4 – DECT‑2020 New Radio (NR); part 4 – MAC‑layer.
> >   * ETSI TS 103‑636‑5 – DECT‑2020 New Radio (NR); part 5 – DLC and
> >     convergence layers.
> >   * IETF draft-ietf-opsawg-pcaplinktype – Link‑Layer Types for PCAP
> >     and PCAP‑NG.
> >
> > I intend to submit an IANA registration for this type and would like 
> > to use the same name and value (*304*) in libpcap/tcpdump once the 
> > registry entry is approved.
> >
> > Thank you for your time.
> >
> >
> > --
> >
> > Best Regards,
> > Edem
> >
> > Edem Khadiev| Systems Software Engineer| DSR Corporation 
> > <https://dsr-corporation.com>| E-mail: edem.khadiev () dsr-corporation com
> >
> > DSR logo
> >
> > ------------------------------------------------------------------------
> >
> > CONFIDENTIALITY NOTICE: This e-mail transmission, and any documents, 
> > files or previous e-mail messages attached to it, is confidential 
> > and/or legally privileged. If you are not the intended recipient, or a 
> > person responsible for delivering it to the intended recipient, any 
> > use, disclosure or copying of this email or any attachments is 
> > expressly prohibited. If you have received this transmission in error, 
> > please immediately notify the sender by reply email, and destroy the 
> > original transmission and its attachments without reading or saving in 
> > any manner.
> >
> > VIRUS: Every care has been taken to ensure this email and its 
> > attachments are virus free, however, any loss or damage incurred in 
> > using this email is not the sender's responsibility. It is your 
> > responsibility to ensure virus checks are completed before installing 
> > any data sent in this email to your computer.
>
> --- End Message ---
_______________________________________________
tcpdump-workers mailing list -- tcpdump-workers () lists tcpdump org
To unsubscribe send an email to tcpdump-workers-leave () lists tcpdump org
%(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s