TP-Link Archer C20 Router Manual PDF (Setup & Configuration Guide)

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Archer C20

AC750 Wireless Dual Band Router

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

Note:

The max share folders number is 6. If you want share a new folder when the number has been

reached to be 6, you can delete a share folder and then add a new one.

4.10.6

Print Server

Choose menu “

USB Settings

→

Print Server

”, you can configure print server on this page as

shown below.

Figure 4-59 Print Server Setting

There are two states of the print server, they are as follows:



Online -

Indicates the print service has been turned on, and no user is using the print service

at present. You can click the "

Stop

" button to stop the print service.



Offline -

Indicates the print service feature is disabled. You can click "

Start

" button to start the

print service.

4.11 NAT

Choose “

NAT

”, and you can enable or disable the NAT and Hardware NAT Control feature. The

NAT Rules and Hardware NAT will work properly only when the NAT Control feature is enabled.

Figure 4-60 The Forwarding menu



Current NAT Status

- If enabled, the NAT function and the Forwarding configuration will take

effect. If disabled, neither NAT function nor Forwarding configuration will take effect.



Current Hardware NAT Status

- If enabled, the Hardware NAT feature will take effect. If

disabled, neither Hardware NAT feature will take effect.

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AC750 Wireless Dual Band Router

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4.12 Forwarding

Figure 4-61 The Forwarding menu

There are four submenus under the Forwarding menu (shown in Figure 4-61):

Virtual Servers

,

Port Triggering

,

DMZ

and

UPnP

. Click any of them, and you will be able to configure the

corresponding function.

4.12.1

Virtual Servers

Choose menu “

Forwarding

→

Virtual Servers

”, and then you can view and add virtual servers

on this page (shown in Figure 4-62). Virtual servers can be used for setting up public services on

your LAN. A virtual server is defined as a service port, and all requests from Internet to this

service port will be redirected to the computer specified by the server IP. Any PC that was used

for a virtual server must have a static or reserved IP address because its IP address may change

when using the DHCP function. If you want the Virtual Servers configuration take effect, please

make sure the NAT is enabled.

Figure 4-62 Virtual Servers



Service Port

- The numbers of External Service Ports. You can enter a service port or a

range of service ports (the format is XXX – YYY; XXX is the Start port and YYY is the End

port).



IP Address

- The IP address of the PC running the service application.



Internal Port

- The Internal Service Port number of the PC running the service application.

You can leave it blank if the

Internal Port

is the same as the

Service Port

, or enter a

specific port number when

Service Port

is a single one.



Protocol

- The protocol used for this application, either

TCP

,

UDP

, or

All

(all protocols

supported by the router).

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AC750 Wireless Dual Band Router

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

Status

- The status of this entry, "Enabled" means the virtual server entry is enabled.



Common Service Port

- Some common services already exist in the drop-down list.



Edit

- To edit or delete an existing entry.

To setup a virtual server entry:

1.

Click the

Add New

button. (pop-up

Figure 4-63)

2.

Select the service you want to use from the

Common Service Port

list. If the

Common

Service Port

menu does not list the service that you want to use, enter the number of the

service port or service port range in the

Service Port

field.

3.

Enter the IP address of the computer running the service application in the

IP Address

field.

4.

Select the protocol used for this application in the

Protocol

drop-down list, either

TCP

,

UDP

,

or

All

.

5.

Select the

Enabled

option in the

Status

drop-down list.

6.

Click the

Save

button.

Figure 4-63 Add or Modify a Virtual Server Entry



Note:

It is possible that you have a computer or server that has more than one type of available service.

If so, select another service, and type the same IP address for that computer or server.

To modify or delete an existing entry:

1.

Find the desired entry in the table.

2.

Click

Edit

or

Delete

as desired on the

Edit

column.

Click the

Enable/ Disable Selected

button to make selected entries enabled/ disabled.

Click the

Delete Selected

button to delete selected entries.

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AC750 Wireless Dual Band Router

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

Note:

If you set the service port of the virtual server as 80, you must set the Web management port on

Security

→

Remote Management

page to be any other value except 80 such as 8080.

Otherwise there will be a conflict to disable the virtual server.

4.12.2

Port Triggering

Choose menu “

Forwarding

→

Port Triggering

”, you can view and add port triggering entry on this

page (shown in Figure 4-64). Some applications require multiple connections, like Internet games,

video conferencing, Internet telephoning and so on. Port Triggering is useful for those applications

that cannot work with a pure NAT router.

Figure 4-64 Port Triggering



Trigger Port

- The port for outgoing traffic. An outgoing connection using this port will trigger

this rule.



Trigger Protocol

- The protocol used for Trigger Ports, either

TCP

,

UDP

, or

All

(all

protocols supported by the router).



Open Port

- The port or port range used by the remote system when it responds to the

outgoing request. A response using one of these ports will be forwarded to the PC which

triggered this rule. You can input at most 5 groups of ports (or port sections). Every group of

ports must be separated with ",", for example, 2000-2038, 2046, 2050-2051, 2085,

3010-3030.



Open Protocol

- The protocol used for

Open Port

, either

TCP

,

UDP

, or

ALL

(all protocols

supported by the router).



Status

- The status of this entry, Enabled means the Port Triggering entry is enabled.



Edit

- To modify or delete an existing entry.



Common Applications

- Some popular applications already listed in the drop-down list of

Incoming Protocol

.

To add a new rule, follow the steps below.

1.

Click the

Add New

button, the next screen will pop-up as shown in Figure 4-65.

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AC750 Wireless Dual Band Router

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2.

Select a common application from the

Common Applications

drop-down list, then the

Trigger Port

field and the

Open Port

field will be automatically filled. If the

Common

Applications

do not have the application you need, enter the

Trigger Port

and the

Open

Port

manually.

3.

Select the protocol used for Trigger Port from the

Trigger Protocol

drop-down list, either

TCP

,

UDP

, or

All

.

4.

Select the protocol used for Incoming Ports from the

Open Protocol

drop-down list, either

TCP

or

UDP

, or

All.

5.

Select

Enabled

in

Status

field.

6.

Click the

Save

button to save the new rule.

Figure 4-65 Add or Modify a Triggering Entry

To modify or delete an existing entry:

1.

Find the desired entry in the table.

2.

Click

Edit

or

Delete

as desired on the

Edit

column.

Click the

Enable Selected

button to make selected entries enabled.

Click the

Disable Selected

button to make selected entries disabled.

Click the

Delete Selected

button to delete selected entries

Once the router is configured, the operation is as follows:

1.

A local host makes an outgoing connection to an external host using a destination port

number defined in the

Trigger Port

field.

2.

The router records this connection, opens the incoming port or ports associated with this

entry in the

Port Triggering

table, and associates them with the local host.

3.

When necessary, the external host will be able to connect to the local host using one of the

ports defined in the

Open Ports

field.

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