FFMPEG shows bitrate=N/A and doesn't send anything - ffmpeg

Question

I am trying to relay an stream from one rtsp url to another without recoding using this command:
ffmpeg
-rtsp_transport tcp
-fflags nobuffer
-re
-i rtsp://xxx.xxx.xxx.xxx:554/[stream_name]
-vcodec copy
-an
-f rtsp rtsp://yyy.yyy.yyy.yyy/[new_stream_name]
But FFMPEG doesn't stream anything and stats shows bitrate=N/A
This is the exact output that i get:
ffmpeg version 4.1.3-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-gray --enable-libfribidi --enable-libass --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libxml2 --enable-libxvid --enable-libzimg
libavutil 56. 22.100 / 56. 22.100
libavcodec 58. 35.100 / 58. 35.100
libavformat 58. 20.100 / 58. 20.100
libavdevice 58. 5.100 / 58. 5.100
libavfilter 7. 40.101 / 7. 40.101
libswscale 5. 3.100 / 5. 3.100
libswresample 3. 3.100 / 3. 3.100
libpostproc 55. 3.100 / 55. 3.100
Input #0, rtsp, from
'rtsp://xxx.xxx.xxx.xxx:554/[stream_name]':
Metadata:
title : RTSP Session
Duration: N/A, start: 0.318111, bitrate: N/A
Stream #0:0: Video: h264 (High), yuv420p(progressive), 944x1080, 22 fps, 22 tbr, 90k tbn, 180k tbc
Output #0, rtsp, to
'rtsp://yyy.yyy.yyy.yyy/[new_stream_name]':
Metadata:
title : RTSP Session
encoder : Lavf58.20.100
Stream #0:0: Video: h264 (High), yuv420p(progressive), 944x1080, q=2-31, 22 fps, 22 tbr, 90k tbn, 90k tbc
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
frame= 113 fps= 32 q=-1.0 Lsize=N/A time=00:00:06.77 bitrate=N/A speed=1.92x
Although when i change output stream container to 'flv' and protocol to 'rtmp' it works.
Any help will be appreciated.

Answer 1

To have stream accessible you need to publish it to a streaming server that supports RTSP input (like Wowza SE) and that usually also involves publishing credentials like:
rtsp://user:password#yyy.yyy.yyy.yyy/[new_stream_name]
You can test re-streaming with this tool https://videonow.live/broadcast-ip-camera-or-stream/ that can also publish it in a HTML5 accessible format like HLS.