[streaming] SAP TTL

[George Bray]

I'm using VLC 0.8.6a on MacOS to do multicast UDP broadcasting with SAP.

However, the TTL on all SAP packets is 255, no matter what value I set
on the command line -ttl value.

I also don't see any change in this high TTL when adding supposedly
outdated switches,

--sout-udp-ttl 2 --sout-rtp-ttl 2 --sout-standard-sap=1

I'm using VLM to setup the stream

new ABCAP broadcast enabled
setup ABCAP input "udp://@127.0.0.1:1234"
setup ABCAP output
#std{access=udp,mux=ts,dst=233.70.142.177:1234,sap,group="TEST UCTV
International",name="Australia Network",ttl=2}
control ABCAP play


I've tried with and without a ttl value in the VLM output, and all combinations.

So could someone confirm that --ttl=n is the correct way to specifiy
the TTL of the outgoing stream, and SAP announce. Whether it should be
specified on the command line, or in the VLM channel spec.

As I can't seem to change it from 255 no matter what I do, could
someone confirm this behavior.

SAP is broadcast on 224.2.127.254 and can be seen using ethereal.

thanks,

George

-- 
George Bray - University of Canberra, Australia

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