OPTICODEC-PC
STREAMING SERVERS
4-17
a firewall or router using NAT is not required or recommended. However, if SHOUT-
cast DNAS is located behind a firewall or router, and access from the Internet is re-
quired, specific ports need to be opened and forwarded in the firewall to allow in-
bound encoder connections and outbound HTTP requests from player clients to
stream media data to them.
FUNCTION
PORT
PROTOCOL
DIRECTION
Encoder – Opticodec-PC – HTTP - Default
8001
TCP
In
Player-Media – HTTP/ICY - Default
8000
TCP
Out
Note: Ports shown in this chart are default values. Actual ports used must
be configured in the firewall and/or router.
Table 4-2: Firewall considerations for SHOUTcast DNAS
Port forwarding must also route the incoming HTTP requests from player clients to
the IP address of the SHOUTcast DNAS.
For multiple streams, the necessary port pairs need to be opened and forwarded
accordingly.
Icecast2
Icecast2 is a free downloadable open-source streaming audio server capable of
streaming both live streams encoded with Orban Opticodec-PC Streaming Encoder
and files produced by Orban Optidodec-PC File Encoder, including stream-related
metadata. Icecast2 also offers additional server security by using encrypted pass-
words for encoder access. It is available for Microsoft Windows and various UNIX
platforms and uses the popular HTTP/ICY protocol. The Windows version offers both
a command line (CLI) and graphical user interface (GUI). Icecast2 supports mount-
points, thus allowing multiple streams on a single server using the same port. Ice-
cast2 produces streams compatible with the popular free Windows Winamp player
client.
Supported Protocol
•
Icecast2 HTTP/ICY over TCP
. The Icecast HTTP/ICY protocol is based
on the same TCP HTTP protocol used for web servers. The encoder and
player client negotiation, authentication, and metadata and media
data is specific to Icecast2. This protocol has the advantage of working
through most firewalls easily.
