ELTEX TAU-8.IP - NAT Rules (Port Forwarding) Submenu

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40 VoIP subscriber gateways
Host configuration
To add the address into the list, fill in the described below fields and click 'Add' button:
– IP address– IPv4-address of host corresponding to the name specified in the ‘Domain name’ field;
– Domain name – host domain name for access to it.
To remove the address from the list, select the checkbox next to the respective address and click ‘Delete’.
To save changes into the device operative memory, click ‘Save Changes’ button. To record settings into
the non-volatile memory, click ‘Apply’.
3.1.2.6 ‘NAT rules’ (‘Port Forwarding’) submenu
This submenu is available only for TAU-8.IP-W devices.
In the submenu, you may configure port forwarding from WAN interface to WLAN interface.
NAT (Network Address Translation) allows for IP packet address and network port translation. Port
forwarding is required when TCP/UDP connection to a local computer (connected to LAN interface) is
established from the external network. In this settings menu, you may define the rules allowing packets to pass
from the external network to the specified address in the local network and, thus, enabling connection. In
general, port forwarding is necessary for torrent and P2P service operation. For this purpose, you should identify
TCP/UDP ports used by a torrent or p2p client in their settings and assign the respective forwarding rules for
your computer IP address.
Configuration of NAT rules:
Network Address Translation (NAT) mode is enabled by default. To disable NAT, click ‘Disable NAT’
button.
To add new NAT rule, click ‘New rule’ button and fill in the following fields:
– Name – service name (this field is required);
– LAN IP Address – internal destination IP address – IP address of the host in LAN used for packet
translation falling under this rule;
– Traffic type – traffic type selection. When ‘Any’ value is set, internal destination IP address (LAN IP
address) is used for all incoming traffic. When you select type ‘Specify’, you may get opportunity
to specify some parameters of incoming traffic: