Prodys S.L. Tel: +34 91 6896880
Θ
Fax: +34 91 6943777
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Email:
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Web:
www.prodys.com
Page 116
V.6.15
Router configuration
As we mentioned before, both Prodys Protocols and EBU TECH 3326
standard protocols, use several ports in order to achieve IP connections
between units.
If the user tries to connect two units through one or several routers, they
should be configured in order to forward these ports packets to the
recipient units (this is usually called Network Address Translation NAT, or
NAPT).
A new NAT Traversal IP Protocol has been implemented (Prodys
Proprietary Protocol V3). This protocol has been modified so that no
configuration at all is necessary in the router at the caller side: NAT
Traversal Protocol. Only at the callee side, the router has to be configured
to allow the incoming call to proceed.
This will make it possible to make calls from anywhere, regardless of
whether there is a router which can be configured by the user or not. This
is very useful for remote broadcasting from hotels, conference rooms or
any other public location which offers a non configurable IP access to the
internet, for example.
In addition, routers/firewalls should let ICMP packets pass through from
WAN interface to LAN interface, in order to let the unit ping packets to
reach the recipient codec. This is only necessary till version 4.8.0, in which
this protocol was removed.
Bear in mind that the Prodys IP Codec subnet should be the same as the
router subnet, and its gateway should be the private (LAN) IP address of
the router which the Codec is connected to.
The user should bear in mind that other protocols such us SNTP or SNMP
use UDP ports for their communications, and that should be taken into
account when configuring the routers/firewalls when required. That is,
SNMP 161 UDP port should be enabled/forwarded in the corresponding
router/firewall when trying to control the units via SNMP from outside our
network. SNTP 123 UDP port should be configured only when one the
units acts as a time server, and it is going to receive time requests from
outside our network.
Содержание IP Family
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