Справочник Пользователя для Insys GPRS 5.0 Ethernet 11-02-01-03-10.018
Модели
11-02-01-03-10.018
INSYS GPRS 5.0 Ethernet
Functions
Dez-06
35
5.4
Port Forwarding
5.4.1
Incoming connections
Besides the previously described, dynamic NAT entries for outgoing connections, fixed,
user-defined, i.e. purely static NAT entries may be defined for incoming connections for
the INSYS GPRS 5.0 Ethernet. This will remain permanently after the initialization. The
maximum possible number of dynamic entries will be reduced by the number of fixed,
static entries.
user-defined, i.e. purely static NAT entries may be defined for incoming connections for
the INSYS GPRS 5.0 Ethernet. This will remain permanently after the initialization. The
maximum possible number of dynamic entries will be reduced by the number of fixed,
static entries.
Note
In the INSYS GPRS 5.0 Ethernet, a maximum of 20 static NAT entries
may be defined.
In the INSYS GPRS 5.0 Ethernet, a maximum of 20 static NAT entries
may be defined.
It is thus possible to forward connections which come in at a certain public port (WAN
port) of the INSYS GPRS 5.0 Ethernet to a computer of the local network (LAN).
Example:
A web server (TCP, port 80) with the local IP address 192.168.0.10 should be reached
from the Internet.
LAN
192.168.0.10
GW:192.168.0.1
192.168.0.1
GPRS
INSYS GPRS 5.0
Ethernet
84.142.35.215
129.187.240.111
client computer
with web
browser
Internet
WAN
local webserver
The following static NAT entry (see Chapter 5.5.5) is entered in the INSYS GPRS 5.0
Ethernet:
WAN port: 80
Local IP address: 192.168.0.10
LAN port: 80
Protocol: TCP
Local IP address: 192.168.0.10
LAN port: 80
Protocol: TCP
Note
If port 80 on the device is forwarded to a web server in the local net-
work, it is no longer possible to reach the web configuration interface
on the device from the WAN.
If port 80 on the device is forwarded to a web server in the local net-
work, it is no longer possible to reach the web configuration interface
on the device from the WAN.