[Icecast] Newbie Question
mcbicecast at robuust.nl
Sat Oct 22 08:47:47 PDT 2011
On Thu, 20 Oct 2011, Sean Anthony wrote:
> I would hazard a guess that infact on the icecast server you would
> want to set this to a rfc 1918 ip on your lan such as 192.168.x.y or
> whatever range you are using on your home network, then you would need
> to forward the relevant ports through from your router to the icecast
You need to keep in mind though, that NAT settings such as port
forwarding, not always work as expected, when trying to access NAT-ed
services on the public IP from inside the same NAT.
Example: given external IP-address 188.8.131.52, you can redirect external port
8000 to internal host 192.168.56.7:8000 using the modem/router's
configuration pages. That way, connections to 184.108.40.206:8000 will be
forwarded to 192.168.56.7:8000 and work as expected.
However, when trying to connect to 220.127.116.11:8000 from, say, 192.168.56.3
which is another box inside the same LAN as the icecast server, may not
always work. Connections from anywhere else on the internet WILL work.
Reason for this: router rewrites:
to something like:
However, when this packet arrives at 192.168.56.7:8000, its reply will go
to 192.168.56.3:something, but at 192.168.56.3 this will not match with
its outgoing connection to 18.104.22.168:8000.
Several routers also rewrite the from-addresses when they come from inside
the LAN, such that the reply will also go through the router and be
re-translated back to the client.
A lot of routers, especially cheap/bulk ISP-provided modem/routers, fail
to also do this extra translation.
And as a free bonus: you might also need to check and tune your
modem/router's firewall settings to actually allow traffic to pass over
> On 10/20/11, gary at greatoldies.co.uk <gary at greatoldies.co.uk> wrote:
>> I'm trying to set up to stream myself as opposed to a remote server. I
>> should have bandwidth as I'm on BT Infinity, upstream is around 3mbps.
>> I'm streaming using Sam, and both the encoder in SAM and Icecast server
>> appear to be running. Checked the log file and all seems well.
>> When I set my IP adress to localhost I can tune in on my host machine,
>> however when I try to use my IP address, I can't connect.
>> Any suggestions?
>> Many thanks
>> Icecast mailing list
>> Icecast at xiph.org
> Sent from my mobile device
> Icecast mailing list
> Icecast at xiph.org
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