Crestron e-Control Spécifications télécharger pdf (Page 15)

Crestron e-Control

Software

• The Registered Ports are those from 1024 through 49151—Crestron has four

registered ports for CIP and TCP communication.

• The Dynamic and/or Private Ports are those from 49152 through 65535.

Some examples of well-known port numbers are FTP (port 21), Telnet (port 23),

E-mail (SMTP, or Simple Mail Transfer Protocol, port 25) and WWW (port 80).

If the server machine accepts connections on a port from the outside world, and if a

firewall is not protecting the port, you can connect to the port from anywhere on the

Internet and use the service.

Note that nothing forces a Web server, for example, to be on port 80. If you were to

set up your own Web server, you could put it on port 49153 or any other unused port.

Then if the server were located at http://www.e-control.com, someone on the

Internet could connect to that server by typing http://www.e-control.com:49153

. The

":49153" explicitly specifies the port number, and would have to be included for

someone to reach the server. When no port is specified, the browser simply assumes

that the server is using the well-known port 80.

Port Mapping

If a firewall or NAT is protecting a port, an Internet client can still access a server

machine on the internal LAN if the router or NAT is configured for port mapping.

Port mapping is a mechanism that makes specific services available to the WAN

without exposing other areas of the internal LAN.

Here you assign an “external” port number to whichever service you want to make

available to the outside world; the external port is mapped to the real port number on

the internal LAN. This allows anyone on the outside to connect to the server, if they

know the IP address or domain name address of the router and the external port

number of the server.

For example, if you were to set up a Web server on the internal LAN, you could

assign it an external port number 918, and map it to internal port 80. Any Internet

client that wants to connect to that server would then need to know the IP address of

the router, and the external port number. If the router were located at IP address

195.164.35.7, the client would enter http://195.164.35.7:918, as shown below.

Router Port Mapping Settings

External Port IP Address Protocol Internal Port

918 192.168.1.8 TCP 80

Server (192.168.1.8)

Browser (http://195.164.35.7:918)

LAN (192.168.1.1)

Router

WAN (195.164.35.7)

Hub

Most routers allow between 10 and 16 ports to be opened using port mapping; the

Crestron NAT that is built into the 2-Series processor allows up to 16.

Reference Guide – DOC. 6052 Crestron e-Control® • 11

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 73 74

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Whirlpool BSNF 9101 OX Guía de uso y cuidado (33 paginas)

Marca: Whirlpool | Categoria: Fridge-freezers | Tamaño: 3.42 MB |

Tabla de contenidos

ENGLISH

RECOMMENDATIONS

SAFEGUARDING

THE ENVIRONMENT

DECLARATION

OF CONFORMITY

PRODUCT

DESCRIPTION

TECHNICAL

CONTROL PANEL

ACCESSORIES

NO-FROST FREEZER

COMPARTMENT

HOW TO USE

THE APPLIANCE

DAILY USE

FOOD-STORAGE TIPS

CLEANING AND

MAINTENANCE

TROUBLESHOOTING

GUIDE & AFTER-SALES

AFTER-SALES

SERVIC E

400010791468

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