System information

CONFIGURATION
1.13. NAT configuration
To enter the Network Address Translation configuration, select the NAT menu item.
NAT (Network address Translation / Port address Translation - PAT) is a method of adjusting
the network traffic through the router default transcript and/or destination IP addresses often
change the number of TCP/UDP port for walk-through IP packets. The window contains
sixteen entries for the definition of NAT rules.
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Public Port Public port
Private Port Private port
Type Protocol selection
Server IP address IP address which will be forwarded incoming data.
Table 22: NAT configuration
If necessary set more than sixteen rules for NAT rules, then is possible insert
into start up script following script:
iptables -t nat -A napt -p tcp --dport [PORT_PUBLIC] -j DNAT --to-destination
[IPADDR]:[PORT1_PRIVATE]
Concrete IP address [IPADDR] and ports numbers [PORT_PUBLIC]
and [PORT1_PRIVATE] are filled up into square bracket.
The following items are used to set the routing of all incoming traffic from the PPP
to the connected computer.
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Send all incoming pack
ets to default server
By checking this item and setting the Default Server item it is possible
to put the router into the mode in which all incoming data from GPRS
will be routed to the computer with the defined IP address.
Default Server Send all incoming packets to this IP addresses.
Table 23: Configuration of send all incoming packets
Enable the following options and enter the port number is allowed remote access
to the router from PPP interface.
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Enable remote HTTP
access on port
If this item field and port number is filled in, then configuration of the
router over web interface is possible.
Enable remote HTTPS
access on port
If this item field and port number is filled in, then configuration of the
router over web interface is possible.
Enable remote FTP
access on port
Choice this item and port number makes it possible to access over
FTP.
Enable remote SSH
access on port
Choice this item and port number makes it possible to access over
SSH.
Enable remote Telnet
access on port
Choice this item and port number makes it possible to access over
Telnet.
Enable remote SNMP
access on port
Choice this item and port number makes it possible to access
to SNMP agent.
Masquerade outgoing
packets
Choice Masquerade (alternative name for the NAT system) item
option turns the system address translation NAT.
Table 24: Remote access configuration
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