CONEL LR77 v2 [51/106] Nat configuration

1. CONFIGURATION OVER WEB BROWSER

1.19 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 net-

work 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.

Item Description

Public Port Public port

Private Port Private port

Type Protocol selection

Server IP address IP address which will be forwarded incoming data

Table 33: 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 [PORT_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.

Item Description

Send all remaining incoming

packets 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 IP Address Send all incoming pac kets to this IP addresses.

Table 34: Conﬁguration of send all incoming packets