Telewell TW-EAV510v2 Router Manual PDF (Setup & Configuration Guide)

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Remove

If you don’t need a specified Server, you can remove it. Check the check box beside the item you want

to remove, then press Remove, it will be OK.

DMZ Host

The DMZ Host is a local computer exposed to the Internet. When setting a particular internal IP

address as the DMZ Host, all incoming packets will be checked by Firewall and NAT algorithms before

being passed to the DMZ host, when a packet received does not use a port number used by any other

Virtual Server entries.

DMZ Host IP Address:

Enter the IP Address of a host you want it to be a DMZ host. Select from the

list box to quick set the DMZ.

Time Schedule:

Select or set exactly when the DMZ works. When set to “Always On”, the DMZ will

work all time; and also you can set the precise time when DMZ works, like 01:00-19:00 from Monday

to Friday. Or you can select the already set timeslot in Time Schedule during which the DMZ works.

And when set to “Disable”, the DMZ Host

is disabled. See Time Schedule.

Using port mapping does have security implications, since outside users are able to connect to PCs on

your network. For this reason you are advised to use specific Virtual Server entries just for the ports

your application requires instead of simply using DMZ or creating a Virtual Server entry for “All”

protocols, as doing so results in all connection attempts to your public IP address accessing the

specified PC.

If you have disabled the NAT option in the WAN-ISP section, the Virtual Server function will hence be

invalid.

If the DHCP server option is enabled, you have to be very careful in assigning the IP addresses of the

virtual servers in order to avoid conflicts. The easiest way of configuring Virtual Servers is to manually

assign static IP address to each virtual server PC, with an address that does not fall into the range of

IP addresses that are to be issued by the DHCP server. You can configure the virtual server IP

address manually, but it must still be in the same subnet as the router

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One-to-One NAT

One-to-One NAT maps a specific private/local address to a global/public IP address. If user has

multiple global/public IP addresses from your ISP, you are free to use one-to-one NAT to assign some

specific public IP for an internal IP like a public web server mapped with a global/public IP for outside

access.

Valid

: Check whether to valid the one-to-one NAT mapping rule.

WAN Interface

: Select one based WAN interface to configure the one-to-one NAT.

Global IP address

: The Global IP mapped to an internal device. It can be left empty, and under this

circumstance, it can be reached through the WAN IP of interface set in the field above.

Internal Address

: The IP address of an internal device in the LAN.

For example, you have an ADSL connection of pppoe_0_8_35/ppp0.1 interface with three fixed global

IP, and you then can assign the other two global IPs to two internal devices respectively.

If you have a WEB server (IP address: 192.168.1.3) and a FTP server (IP address: 192.168.1.4) in

local network, owning a public IP address range of 123.1.1.2 to 123.1.1.4 assigned by ISP. 123.1.1.2

is used as WAN IP address of the router, 123.1.1.3 is used for WEB server and 123.1.1.4 is used for

FTP server. With One-to-One NAT, the servers with private IP addresses can be accessed at the

corresponding valid public IP addresses.

Port Triggering

Port triggering is a way to automate port forwarding with outbound traffic on predetermined ports

(‘triggering ports’), incoming ports are dynamically forwarded to the initiating host, while the outbound

ports are in use. Port triggering triggers can open an incoming port when a client on the local network

makes an outgoing connection on a predetermined port or a range of ports.

Click Add to add a port triggering rule.

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Interface

: Select from the drop-down menu the interface you want the port triggering rules apply to.

Application

: Preinstalled applications or Custom Application user can customize the utility yourself.

Custom Application: It is a kind of service to let users themselves customizes the service they want.

Enter the user-defined service name here.

Trigger Port

i

Start: Enter a port number as the triggering port starting number.

i

End: Enter a port number as the triggering port ending number.

Any port in the range delimited by the ‘Start’ and ‘End’ would be the trigger port.

Open port

i

Start: Enter a port number as the open port staring number.

i

End: Enter a port number as the open port ending number.

Any port in the range delimited by the ‘Start’ and ‘End’ would be the preset forwarding port

or open port.

Protocol:

select the protocol this service used:

Set up

An example of how port triggering works, when a client behind a NAT router connecting to Aim Talk, it

is a TCP connection with the default port 4099.

When connecting to Aim Talk, the client typically makes an outgoing connection on port 4099 to the

Aim Talk server, but when the computer is behind the NAT, the NAT silently drops this connection

because it does not know which computer behind the NAT to send the request to connect.

So, in this case, port triggering in the router is working, when an outbound connection is attempted on

port 4099 (or any port in the range set), it should allow inbound connections to that particular

computer.

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Select a Server Name from the drop-down menu, then the port will automatically appear, modify some

as you like, or you can just leave it as default. Remember to enter your server IP Address.

Press Apply to conform, and the items will be list in the Virtual Servers Setup table.

Remove

If you don’t need a specified Server, you can remove it. Check the check box beside the item you want

to remove, and then press Remove.

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ALG

The ALG Controls enable or disable protocols over application layer.

Wake On LAN

Wake on LAN (WOL, sometimes WoL) is an Ethernet computer networking standard that allows a

computer to be turned on or woken up remotely by a network message.

Host Label:

Enter identification for the host.

Select:

Select MAC address of the computer that you want to wake up or turn on remotely.

Wake by Schedule

: Enable to wake up your set device at some specific time. For instance, user can

set to get some device woken up at 8:00 every weekday. Click Schedule to enter time schedule

configuring page to set the exact timeline.

Add

: After selecting, click Add then you can submit the Wake-up action.

Edit/Delete

: Click to edit or delete the selected MAC address.

Ready:

“Yes” indicating the remote computer is ready for your waking up.

“No” indicating the machine is not ready for your waking up.

Delete: Delete the selected MAC address.

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