This is not exactely a wowza query , but any workaround in wowza to achieve this would also be appreciated.

avconv should according to documentation (e.g be able to send in the format ftmp://usernameassword@serverip/live/streamname
However I get this fault when using that format :
/usr/bin/avconv -i rtsp:// -vcodec copy -acodec copy -f flv rtmp://gym:mypasswordhere@myserverip/live/streamname
avconv version 9.14-6:9.14-1rpi1rpi1, Copyright (c) 2000-2014 the Libav developers
built on Jul 22 2014 15:08:12 with gcc 4.6 (Debian 4.6.3-14+rpi1)
[rtsp @ 0x14ed580] Unimplemented RTP/JPEG restart marker header.
Last message repeated 2600 times Last message repeated 2280 times
[rtsp @ 0x14ed580] max_analyze_duration reached
[rtsp @ 0x14ed580] Estimating duration from bitrate, this may be inaccurate
Guessed Channel Layout for Input Stream #0.1 : mono
Input #0, rtsp, from 'rtsp://':
title : RTSP/RTP stream 2 from DCS-5222LB
comment : live2.sdp with v2.0
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0.0: Video: mjpeg, 90k tbn
Stream #0.1: Audio: pcm_mulaw, 8000 Hz, mono, s16, 64 kb/s
Problem accessing the DNS. (addr: gym)
rtmp://gym:mypasswordhere@myiphere:/live/streamname: Unknown error occurred

Same probem with dashes around rtmp://... Any suggestions ? With ffmpeg this format works.