I have 4 different RTMP URLs and I need to re-stream each one to the main server.

For example:
the RTMP URLS are:
rtmp://serverip1/livestream1
rtmp://serverip2/livestream2
rtmp://serverip3/livestream3
rtmp://serverip4/livestream4

I need to stream them again to my server
rtmp://myserver/livestream1
rtmp://myserver/livestream2
rtmp://myserver/livestream3
rtmp://myserver/livestream4

How can I do this? Can I use SMIL?

Thanks