Multitech Multi-Tech RouteFinder SOHO RF820 Manuale utente

RouteFinder®

SOHO Internet Security Appliance

RF820 / RF830 / RF825

Port Forwarding Setup

Reference Guide

Multi-Tech Systems, Inc. RF820/RF830/RF825 Port Forwarding Setup – A Reference Guide 2

Port Forwarding Setup Example

Reference Guide

RouteFinder SOHO Internet Security Appliance

RF820 / RF830 / RF825

PN S000448A, Revision A

This publication may not be reproduced, in whole or in part, without prior expressed written permission from Multi-

Multi-Tech Systems, Inc. makes no representations or warranties with respect to the contents hereof and specifically

disclaims any implied warranties of merchantability or fitness for any particular purpose. Furthermore, Multi-Tech

Systems, Inc. reserves the right to revise this publication and to make changes from time to time in the content hereof

without obligation of Multi-Tech Systems, Inc. to notify any person or organization of such revisions or changes.

Revision Date Description

A 10/25/07 Initial release.

Trademarks

The Multi-Tech logo and RouteFinder are registered trademarks of Multi-Tech System, Inc.

World Headquarters

Multi-Tech Systems, Inc.

2205 Woodale Drive

Mounds View, Minnesota 55112

Phone: 763-785-3500 or 800-328-9717

Fax: 763-785-9874

Internet Address: http://www.multitech.com

Technical Support

Country By Email By Phone

Europe, Middle East, Africa [email protected] +(44) 118 959 7774

U.S., Canada, all others support@multitech.com (800) 972-2439 or 763-717-5863

Port Forwarding

Multi-Tech Systems, Inc. RF820/RF830/RF825 Port Forwarding Setup – A Reference Guide 3

Port Forwarding

Create DNAT Rules Using the WANInterface

IP Address

Create an Internal Server Name

1. Go to the Networks & Services > Network Configuration screen.

2. Enter the Name of the network that you want to create.

Example: private1.

3. Enter the IP Address of this new network.

Example: 192.168.2.20

4. Enter the Subnet Mask for this network. The same address/mask pair should not be present

in the current list displayed on the screen.

Example: 255.255.255.255

5. Click the Add button to add the new network.

Note: Pictured below is an RF820 screen with the single WAN ports. The RF830 screen is the

same except for the addition of WAN2 and WAN2Interface.

private1 192.168.2.20 255.255.255.255

The new network name displays at the bottom of the screen.

Port Forwarding

Multi-Tech Systems, Inc. RF820/RF830/RF825 Port Forwarding Setup – A Reference Guide 4

Create a Service Port

1. Go to the Networks & Services > Service Configuration screen to creating your own port.

2. Enter a Service Name, select a Protocol, enter a range of ports for the SNAT Client, and

enter a port number for DNAT server.

Example:

Service Name: RDP

Protocol: TCP+UDP

S-Port/Client: 1:65535

D-Port/Server: 3389

3. Click the Add button.

The new port displays at the bottom of the screen:

Port Forwarding

Multi-Tech Systems, Inc. RF820/RF830/RF825 Port Forwarding Setup – A Reference Guide 5

Create a DNAT Rule for the Public IP Address

1. Go to the Network Setup > DNAT screen.

2. Create a rule for the public IP Address.

Example:

ANY

WANInterface

RDP

private1

RDP

3. Click the Add button.

1 Any WANInterface RDP private1 RDP

The new DNAT rule displays at the bottom of the screen.

4. Repeat Step 2 for other ports you want to map.

5. Click the Add button after each rule.

Port Forwarding

Multi-Tech Systems, Inc. RF820/RF830/RF825 Port Forwarding Setup – A Reference Guide 6

Create a Packet Filter Rule

1. Go to the Packet Filter > Packet Filter Rules screen.

2. Create a rule allowing clients access across the new tunnel. Note: Do not check the Status

box when creating a new rule.

Example:

LAN

Any

3. Click the Add button.

The rule displays at the bottom of the screen.

4. Click the Save & Restart button located just under the menu bar. The Save and Restart

screen displays.

Save to Flash Memory

If a connection is established, then the settings have been entered correctly and your basic

configuration is now complete. Now, you must save your settings to the Flash Memory; this

saves the current settings in the flash prom and prevents settings from getting lost at the next

power up.

Restart

This is optional. You do not have to restart the RouteFinder after saving to the flash memory.

Port Forwarding

Multi-Tech Systems, Inc. RF820/RF830/RF825 Port Forwarding Setup – A Reference Guide 7

Create IP Aliases and DNAT Rules

Create an IP Alias for the Other Public IP Address

1. Go to the Network Setup > Advanced IP Settings screen.

2. Create an IP alias for the other public IP address.

Example:

Interface: WAN1

IP Address: 40.22.1.1

Netmask: 255.255.255.255

3. Click the Add button.

4. Go to the Networks & Services > Network Configuration screen.

5. Create a name for public IP Address:

Name: public1

IP Address: 40.22.1.1

Subnet Mask: 255.255.255.255

6. Click the Add button.

public1 40.22.1.1 255.255.255.255

The new network name displays at the bottom of the screen.

Port Forwarding

Multi-Tech Systems, Inc. RF820/RF830/RF825 Port Forwarding Setup – A Reference Guide 8

7. On the same Network & Services screen create another network name; this one is for the

private server:

Example:

Name: private1

IP Address: 192.168.2.20

Subnet Mask: 255.255.255.255

8. Click the Add button.

public1 40.22.1.1 255.255.255.255

private1 192.168.2.20 255.255.255.255

The new network names display at the bottom of the screen.

Port Forwarding

Multi-Tech Systems, Inc. RF820/RF830/RF825 Port Forwarding Setup – A Reference Guide 9

9. Go to the Network Setup > DNAT screen.

10. Create a DNAT rule for the public IP Address:

Any

public1

SMTP

private1

SMTP

11. Click the Add button.

1 Any public 1 SMTP private1 SMTP

The new DNAT rule displays at the bottom of the screen.

12. Repeat the above steps for more mapping using the other public IP Addresses.

13. Click the Save & Restart button located just under the menu bar. The Save and Restart

screen displays.

Save to Flash Memory

If a connection is established, then the settings have been entered correctly and your basic

configuration is now complete. Now, you must save your settings to the Flash Memory; this

saves the current settings in the flash prom and prevents settings from getting lost at the next

power up.

Restart

This is optional. You do not have to restart the RouteFinder after saving to the flash memory.

Appendix – A Reference Table of Commonly Supported Subnets

Multi-Tech Systems, Inc. RF820/RF830/RF825 Port Forwarding Setup – A Reference Guide 10

Appendix – A Reference Table of

Commonly Supported Subnets

This table lists commonly supported Subnets organized by Address.

Network Number Hosts Available Broadcast Address

255.255.255.128 N.N.N.0 N.N.N.1-126 N.N.N.127

/25 N.N.N.128 N.N.N.129-254 N.N.N.255

Network Number Hosts Available Broadcast Address

255.255.255.192 N.N.N.0 N.N.N.1-62 N.N.N.63

/26 N.N.N.64 N.N.N.65-126 N.N.N.127

N.N.N.128 N.N.N.129-190 N.N.N.191

N.N.N.192 N.N.N.193-254 N.N.N.255

Network Number Hosts Available Broadcast Address

255.255.255.224 N.N.N.0 N.N.N.1-30 N.N.N.31

/27 N.N.N.32 N.N.N.33-62 N.N.N.63

N.N.N.64 N.N.N.65-94 N.N.N.95

N.N.N.96 N.N.N.97-126 N.N.N.127

N.N.N.128 N.N.N.129-158 N.N.N.159

N.N.N.160 N.N.N.161-190 N.N.N.191

N.N.N.192 N.N.N.193-222 N.N.N.223

N.N.N.224 N.N.N.225-254 N.N.N.255

Network Number Hosts Available Broadcast Address

255.255.255.240 N.N.N.0 N.N.N.1-14 N.N.N.15

/28 N.N.N.16 N.N.N.17-30 N.N.N.31

N.N.N.32 N.N.N.33-46 N.N.N.47

N.N.N.48 N.N.N.49-62 N.N.N.63

N.N.N.64 N.N.N.65-78 N.N.N.79

N.N.N.80 N.N.N.81-94 N.N.N.95

N.N.N.96 N.N.N.97-110 N.N.N.111

N.N.N.112 N.N.N.113-126 N.N.N.127

N.N.N.128 N.N.N.129-142 N.N.N.143

N.N.N.144 N.N.N.145-158 N.N.N.159

N.N.N.160 N.N.N.161-174 N.N.N.175

N.N.N.176 N.N.N.177-190 N.N.N.191

N.N.N.192 N.N.N.193-206 N.N.N.207

N.N.N.208 N.N.N.209-222 N.N.N.223

N.N.N.224 N.N.N.225-238 N.N.N.239

N.N.N.240 N.N.N.241-254 N.N.N.255

Network Number Hosts Available Broadcast Address

255.255.255.248 N.N.N.0 N.N.N.1-6 N.N.N.7

/29 N.N.N.8 N.N.N.9-14 N.N.N.15

N.N.N.16 N.N.N.17-22 N.N.N.23

N.N.N.24 N.N.N.25-30 N.N.N.31

N.N.N.32 N.N.N.33-38 N.N.N.39

N.N.N.40 N.N.N.41-46 N.N.N.47

N.N.N.48 N.N.N.49-54 N.N.N.55

N.N.N.56 N.N.N.57-62 N.N.N.63

N.N.N.64 N.N.N.65-70 N.N.N.71

N.N.N.72 N.N.N.73-78 N.N.N.79

N.N.N.80 N.N.N.81-86 N.N.N.87

N.N.N.88 N.N.N.89-94 N.N.N.95

N.N.N.96 N.N.N.97-102 N.N.N.103

N.N.N.104 N.N.N.105-110 N.N.N.111

N.N.N.112 N.N.N.113-118 N.N.N.119

N.N.N.120 N.N.N.121-126 N.N.N.127

N.N.N.128 N.N.N.129-134 N.N.N.135

N.N.N.136 N.N.N.137-142 N.N.N.143

N.N.N.144 N.N.N.145-150 N.N.N.151

N.N.N.152 N.N.N.153-158 N.N.N.159

N.N.N.160 N.N.N.161-166 N.N.N.167

N.N.N.168 N.N.N.169-174 N.N.N.175

N.N.N.176 N.N.N.177-182 N.N.N.183

N.N.N.184 N.N.N.185-190 N.N.N.191

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