tchmiel-ffserver-ffmpeg

Server configuration (/etc/ffserver.conf) relevant lines:
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<Feed feed1.ffm>
File /tmp/feed1.ffm
FileMaxSize 1G

ACL allow 127.0.0.1
ACL allow 192.168.42.69
</Feed>

<Stream test1.mp4>
Feed feed1.ffm
Format mp4
#AudioBitRate 32
#AudioChannels 1
#AudioSampleRate 44100
VideoBitRate 256
VideoBufferSize 30
VideoFrameRate 30
VideoSize 640x480
VideoGopSize 30
NoAudio
Preroll 15
</Stream>
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FFmpeg "sender" command line:
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ffmpeg -v 10 -r 30 -s 640x480 -f video4linux2 -i /dev/video0 -flags +global_header -vcodec mp4 http://192.168.42.42:8090/feed1.ffm
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ffserver output as soon as I try to view my file:
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Mon Nov  7 23:15:00 2011 192.168.42.69 - - New connection: GET /test1.mp4
Mon Nov  7 23:15:00 2011 Codec for stream 0 does not use global headers but container format requires global headers
Mon Nov  7 23:15:00 2011 muxer does not support non seekable output
Mon Nov  7 23:15:00 2011 Error writing output header
Mon Nov  7 23:15:00 2011 192.168.42.69 - - [GET] "/test1.mp4 HTTP/1.1" 200 68