EWS UFS8000, Руководство по эксплуатации

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UFS8000 Ethernet 71
The modem is connected to two networks, namely the internet (WAN = Wide Area Network) and the
local network (LAN = Local Area Network). The modem has an IP address in both networks. To gain
access via the internet to the control, a so-called “NAPT entry” (Network Address Translation) must be
created in the modem.
Thus the modem will know to which IP address in the local network the incoming messages are to be
transmitted.
If the DHCP (DHCP = Dynamic Host Configuration Protocol) server is activated in the modem, the IP
address of the controller (which is accessible via the internet) must be reserved (“DHCP lease”). The
controls are then always assigned the same IP address. This is necessary because only a fixed IP
address can be specified in the “NAPT entry” to control the internet access.
Below is a schematic example of a configuration. Here the “PC-1” and “modem-1”, for example, are
placed in the office of the supplier of the installation.
Figure 14.1
Examples:
1) If you want to connect from your PC (PC-1) with control UFS8000-1 then you must enter the following in the URL bar of the
internet browser:
2) If you want to connect from your PC (PC-1) with control UFS8000-2 then you must enter the following in the URL bar of the
internet browser:
3) If you want to connect from your PC (PC-1) with control UFS8000-3 then you must enter the following in the URL bar of the
internet browser:
WAN
IP : 84.86.9.96
LAN
IP : 10.0.0.138
NAPT
Entry 1 (UFS8000-1)
Inside IP : 10.0.0.4
Inside port : 80
Outside IP : .0.0.0.0
Outside port : 80
Entry 2 (UFS8000-2)
Inside IP : 10.0.0.7
Inside port : 80
Outside IP : .0.0.0.0
Outside port : 81
DHCP Lease
Entry 1 (UFS8000-1)
ID : 01:00:04:a3:20:73:aa
IP : 10.0.0.4
Entry 2 (UFS8000-2)
ID : 01:00:04:f4:66:d3:bb
IP : 10.0.0.7
UFS8000-2
PC-2
PC-1 Modem-1 Modem-2
Internet
IP : 10.0.0.7
Port : 80
GW : 10.0.0.138
MAC: 00.04.f4.66.d3.bb
UFS8000-1
IP : 10.0.0.4
Port : 80
GW : 10.0.0.138
MAC: 00.04.a3.20.73.aa
UFS8000-3
IP : 10.10.10.141
Port : 80
GW : 10.10.10.254
MAC: 00.04.bb.43.a2.cd
WAN
IP : 55.0.152.23
LAN
IP : 10.10.10.254
NAPT
Entry 1 (UFS8000-1)
Inside IP : 10.10.10.141
Inside port : 80
Outside IP : .0.0.0.0
Outside port : 80
DHCP Lease
Entry 1 (UFS8000-3)
ID : 01:00:04:bb:43:a2:cd
IP : 10.10.10.141
Modem-3