Comtrend Corporation VG-8050 User manual

VG-8050
Wireless Router - Access Point
User Manual
Version 1.1, January 12, 2013
261097-011

1
Preface
This manual provides information related to the installation and operation of this
device. The individual reading this manual is presumed to have a basic
understanding of telecommunications terminology and concepts.
If you find the product to be inoperable or malfunctioning, please contact technical
support for immediate service by email at [e-mail]
For product update, new product release, manual revision, or software upgrades,
please visit our website at http://www.comtrend.com
Important Safety Instructions
With reference to unpacking, installation, use, and maintenance of your electronic
device, the following basic guidelines are recommended:
• Do not use or install this product near water, to avoid fire or shock hazard. For
example, near a bathtub, kitchen sink or laundry tub, or near a swimming pool.
Also, do not expose the equipment to rain or damp areas (e.g. a wet basement).
• Do not connect the power supply cord on elevated surfaces. Allow it to lie freely.
There should be no obstructions in its path and no heavy items should be placed
on the cord. In addition, do not walk on, step on, or mistreat the cord.
• Use only the power cord and adapter that are shipped with this device.
• To safeguard the equipment against overheating, make sure that all openings in
the unit that offer exposure to air are not blocked.
• Avoid using a telephone (other than a cordless type) during an electrical storm.
There may be a remote risk of electric shock from lightening. Also, do not use
the telephone to report a gas leak in the vicinity of the leak.
• Never install telephone wiring during stormy weather conditions.
CAUTION:
 To reduce the risk of fire, use only No. 26 AWG or larger
telecommunication line cord.
 Always disconnect all telephone lines from the wall outlet before servicing
or disassembling this equipment.
WARNING
 Disconnect the power line from the device before servicing.
 Power supply specifications are clearly stated in Appendix A.
Copyright
Copyright©2012 Comtrend Corporation. All rights reserved. The information
contained herein is proprietary to Comtrend Corporation. No part of this document
may be translated, transcribed, reproduced, in any form, or by any means without
prior written consent of Comtrend Corporation.
NOTE: This document is subject to change without notice.

2
Technical support
If you find the product to be inoperable or malfunctioning, please contact a technical
support engineer for immediate service by email at INT-[email protected]
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses/
Protect Our Environment
This symbol indicates that when the equipment has reached the end of
its useful life, it must be taken to a recycling centre and processed
separate from domestic waste.
The cardboard box, the plastic contained in the packaging, and the parts that make
up this router can be recycled in accordance with regionally established regulations.
Never dispose of this electronic equipment along with your household waste; you
may be subject to penalties or sanctions under the law. Instead, please be
responsible and ask for disposal instructions from your local government.

3
Table of Contents
CHAPTER 1 INTRODUCTION...........................................................................................................5
1.1 FEATURES..................................................................................................................................5
1.2 APPLICATION.................................................................................................................................6
CHAPTER 2 INSTALLATION.............................................................................................................7
2.1 HARDWARE SETUP...........................................................................................................................7
2.2 LED INDICATORS.............................................................................................................................9
CHAPTER 3 WEB USER INTERFACE............................................................................................11
3.1 DEFAULT SETTINGS .......................................................................................................................11
3.2 IP CONFIGURATION........................................................................................................................11
3.3 LOGIN PROCEDURE........................................................................................................................13
CHAPTER 4 DEVICE INFORMATION...........................................................................................16
4.1WAN .............................................................................................................................................17
4.2 STATISTICS.....................................................................................................................................18
4.2.1 LAN Statistics..................................................................................................................18
4.2.2 WAN Service ...................................................................................................................19
4.3 ROUTE...........................................................................................................................................20
4.4ARP...............................................................................................................................................21
4.5 DHCP............................................................................................................................................22
CHAPTER 5 ADVANCED SETUP.....................................................................................................23
5.1 LAYER 2INTERFACE ......................................................................................................................23
5.1.1 ETH Interface.................................................................................................................23
5.2 WAN SERVICE ...............................................................................................................................24
5.3 LAN..............................................................................................................................................25
5.3.1 IPv6 Autoconfig.....................................................................................................................29
5.4 NAT ..............................................................................................................................................32
5.4.1 Virtual Servers ................................................................................................................32
5.4.2 Port Triggering...............................................................................................................33
5.4.3 DMZ Host .......................................................................................................................35
5.5 SECURITY ......................................................................................................................................36
5.5.1 IP Filtering .....................................................................................................................36
5.5.2 MAC Filtering.................................................................................................................40
5.6 PARENTAL CONTROL......................................................................................................................42
5.6.1 Time Restriction..............................................................................................................42
5.6.2 URL Filter.......................................................................................................................43
5.7 ROUTING .......................................................................................................................................45
5.7.1 Default Gateway.............................................................................................................45
5.7.2 Static Route.....................................................................................................................46
5.7.3 Policy Routing ................................................................................................................47
5.7.4 RIP..................................................................................................................................48
5.8 DNS..............................................................................................................................................49
5.8.1 DNS Server.....................................................................................................................49
5.8.2 Dynamic DNS .................................................................................................................50
5.9 UPNP.............................................................................................................................................51
5.10 DNS PROXY/RELAY ....................................................................................................................52
5.11 IPTUNNEL...................................................................................................................................52
5.11.1 IPv6inIPv4...........................................................................................................................52
5.11.2 IPv4inIPv6...........................................................................................................................55
5.12 IPSEC ..........................................................................................................................................57
5.13 CERTIFICATE................................................................................................................................60
5.13.1 Local...............................................................................................................................60
5.13.2 Trusted CA......................................................................................................................62
5.14 MULTICAST..................................................................................................................................64
CHAPTER 6 WIRELESS 2.4G BAND...............................................................................................68
6.1 BASIC ............................................................................................................................................68

4
6.2SECURITY ......................................................................................................................................70
6.2.1 WPS ................................................................................................................................73
6.3 MAC FILTER .................................................................................................................................77
6.4 WIRELESS BRIDGE.........................................................................................................................78
6.5ADVANCED ....................................................................................................................................79
6.6 STATION INFO ................................................................................................................................83
CHAPTER 7 VOICE............................................................................................................................84
7.1 SIP BASIC SETTING .................................................................................................................85
7.1.1 Global Parameters .........................................................................................................85
7.1.2 Service Provider .............................................................................................................86
7.2 SIPADVANCED........................................................................................................................88
7.2.1 Global Parameters .........................................................................................................88
7.2.2 Service Provider ...........................................................................................................89
7.3 SIP DEBUG ..............................................................................................................................92
7.3.1 Global Parameters .........................................................................................................92
7.3.2 Service Provider .............................................................................................................93
7.4 TELEPHONE CALLS......................................................................................................................94
CHAPTER 8 DIAGNOSTICS.............................................................................................................96
CHAPTER 9 MANAGEMENT ..........................................................................................................97
9.1 SETTINGS.......................................................................................................................................97
9.1.1 Backup Settings...............................................................................................................97
9.1.2 Update Settings...............................................................................................................98
9.1.3 Restore Default...............................................................................................................98
9.2 SYSTEM LOG .................................................................................................................................99
9.3 SECURITY LOG ............................................................................................................................101
9.4 TR-069 CLIENT ...........................................................................................................................102
9.5 INTERNET TIME ...........................................................................................................................104
9.6ACCESS CONTROL .......................................................................................................................105
9.6.1 Passwords.....................................................................................................................105
9.6.2 Service Access......................................................................................................................106
9.7 UPDATE SOFTWARE .....................................................................................................................107
9.8 REBOOT.......................................................................................................................................108
APPENDIX A – SPECIFICATIONS ................................................................................................109
APPENDIX B – PIN ASSIGNMENTS ............................................................................................. 111
APPENDIX C – SSH CLIENT..........................................................................................................112
APPENDIX D – FIREWALL ............................................................................................................113
APPENDIX E – WPS EXTERNALREGISTRAR..........................................................................116
APPENDIX F - CONNECTION SETUP..........................................................................................121

5
Chapter 1 Introduction
The VG-8050 is an 802.11n 2.4GHz compliant VoIP Gateway. It employs a
10/100/1000 Base-T Gigabit Ethernet port for WAN, four 10/100/1000 Base-T
Gigabit Ethernet ports for LAN, one FXS port, one 2.4GHz WiFi On-Off/WPS
button, and an integrated 802.11n 2.4GHz (2T2R) for WLAN Access Point (AP),
which is backward compatible with 802.11b/g; therefore VG-8050 allows both
wired LAN connectivity and wireless connectivity. It is also capable of
facilitating predictable, real-time, toll-quality voice over the Internet.
VG-8050 connects to ADSL or GPON (Gigabit-Capable Passive Optical
Network) modem for providing VoIP services. It supports state-of-the-art
security features such as WPA data encryption, Firewall & VPN pass through
and is designed for both residential and business applications that require
wireless and wired connectivity. VG-8050 is also designed with TR-068
compliant color panel and LED indicators for easy installation and
user-friendliness.
1.1 Features
•UPnP
•Integrated 802.11n 2.4GHz AP (Backward
compatible with 802.11g/b)
•WPA/WPA2 and 802.1x
•WMM
•RADIUS client
•IP filtering
•Static route routing functions
•Dynamic IP assignment
•Parental Control
•IGMP Proxy
•DHCP Server/Client
•DHCP Server/Client
•DNS Relay
•Supports remote administration
•Configuration backup and restoration
•FTP/TFTP server
•Supports QoS (Quality of Service) for voice
•Supports caller ID display and restriction
•Supports call hold, call waiting, call
forwarding, call transfer, 3-way conference
•Supports Direct number dialing
•Supports T.38/ TR-069

6
1.2 Application
The following diagram depicts the application of the VG-8050.

7
Chapter 2 Installation
2.1 Hardware Setup
Follow the instructions below to complete the hardware setup.
BACK PANEL
The figure below shows the back panel of the device.
Power ON
Press the power button to the OFF position (OUT). Connect the power adapter to the
power port. Attach the power adapter to a wall outlet or other AC source. Press the
power button to the ON position (IN). If the Power LED displays as expected then
the device is ready for setup (see section 2.2 LED Indicators).
Caution 1: If the device fails to power up, or it malfunctions, first verify that the
power cords are connected securely. Then power it on again. If the
problem persists, contact technical support.
Caution 2: Before servicing or disassembling this equipment, disconnect all power
cords and telephone lines from their outlets.
Telf
For VoIP service, connect telephone(s) to these ports with RJ11 cable.
Reset Button
Restore the default parameters of the device by pressing the Reset button for 5 to
10 seconds. After the device has rebooted successfully, the front panel should
display as expected (see section 2.2 LED Indicators).
NOTE: If pressed down for more than 20 seconds, the VG-8050 will go into a
firmware update state (CFE boot mode). The firmware can then be
updated using an Internet browser pointed to the default IP address.
LAN PORTS
Use 1000-BASE-T RJ-45 cables to connect up to four network devices to a Gigabit
LAN, or 10/100BASE-T RJ-45 cables for slower networks. As these ports are
auto-sensing MDI/X, either straight-through or crossover cable can be used.
Internet
This port has the same features as the LAN ports described above with additional
Ethernet WAN functionality.

8
WiFi/WPS Button
This button is used to enable/disable WiFi and WPS.
If pushed for 10 seconds or longer, it will enable/disable the wireless functionality.
If pushed for less than 10 seconds, it will activate the WPS functionality.

9
2.2 LED Indicators
The front panel LED indicators are shown below and explained in the following table.
This information can be used to check the status of the device and its connections.
LED Color Mode Description
POWER
Green
On Power on
Red
Blinking
2Hz Red
Failure Power On Self Test
Off Power off
Ethernet
1x~4x
Green On Ethernet connection is available
Blink LAN activity present (traffic in either direction)
Off Ethernet connection is not available
2.4GHz
WiFi
Green On WiFi connection is available
Blink Negotiation or traffic on line
Off WiFi connection is not available
2.4GHz
WPS
Green
On WPS mode exists protected clients
Blink WPS mode is on for 120 seconds
Off WPS mode is off
Red
Solid
Red
(20 sec)
Problems on WPS Registration
FXS1
Green
Blinking
Negotiation or VoIP traffic presence.
Solid
VoIP configuration OK, ATA has been
registered in proxy SIP
Quick
blinking
Tx/Rx traffic on line

10
Off No VoIP configuration
Red Solid
VoIP configuration error, ATA can’t register in
proxy SIP
Linea
Green
On Line up
Blink
2Hz
No line detected
Blink
4Hz
Line is training
Off Router power off
Internet
Green
2 Hz
blinking
Green
& Red
round
Inform the firmware updating and flash
memory writing
&
Red
Green
Blink PPP/DHCP negotiation
Solid PPP/DHCP Up
Quick
Blinking
Tx/Rx traffic on line
Red Solid
Red Authentication failed

11
Chapter 3 Web User Interface
This section describes how to access the device via the web user interface (WUI)
using an Internet browser such as Internet Explorer (version 5.0 and later).
3.1 Default Settings
The factory default settings of this device are summarized below.
LAN IP address: 192.168.1.1
LAN subnet mask: 255.255.255.0
Administrative access (username: 1234 , password: 1234)
WLAN access: enabled
Technical Note
During power on, the device initializes all settings to default values. It will then
read the configuration profile from the permanent storage section of flash memory.
The default attributes are overwritten when identical attributes with different values
are configured. The configuration profile in permanent storage can be created via
the web user interface or telnet user interface, or other management protocols.
The factory default configuration can be restored either by pushing the reset button
for more than five seconds until the power indicates LED blinking or by clicking the
Restore Default Configuration option in the Restore Settings screen.
3.2 IP Configuration
DHCP MODE
When the VG-8050 powers up, the onboard DHCP server will switch on. Basically,
the DHCP server issues and reserves IP addresses for LAN devices, such as your PC.
To obtain an IP address from the DCHP server, follow the steps provided below.
NOTE: The following procedure assumes you are running Windows XP.
However, the general steps involved are similar for most operating
systems (OS). Check your OS support documentation for further details.
STEP 1: From the Network Connections window, open Local Area Connection (You
may also access this screen by double-clicking the Local Area Connection
icon on your taskbar). Click the Properties button.
STEP 2: Select Internet Protocol (TCP/IP) and click the Properties button.
STEP 3: Select Obtain an IP address automatically as shown below.

12
STEP 4: Click OK to submit these settings.
If you experience difficulty with DHCP mode, you can try static IP mode instead.
STATIC IP MODE
In static IP mode, you assign IP settings to your PC manually.
Follow these steps to configure your PC IP address to use subnet 192.168.1.x.
NOTE: The following procedure assumes you are running Windows XP.
However, the general steps involved are similar for most operating
systems (OS). Check your OS support documentation for further
details.
STEP 1: From the Network Connections window, open Local Area Connection (You
may also access this screen by double-clicking the Local Area Connection
icon on your taskbar). Click the Properties button.
STEP 2: Select Internet Protocol (TCP/IP) and click the Properties button.
STEP 3: Change the IP address to the 192.168.1.x (1<x<255) subnet with subnet
mask of 255.255.255.0. The screen should now display as shown below.

13
STEP 4: Click OK to submit these settings.
3.3 Login Procedure
Perform the following steps to login to the web user interface.
NOTE: The default settings can be found in section 3.1.
STEP 1: Start the Internet browser and enter the default IP address for the device
in the Web address field. For example, if the default IP address is
192.168.1.1, type http://192.168.1.1.
NOTE: For local administration (i.e. LAN access), the PC running the browser
must be attached to the Ethernet, and not necessarily to the device.
For remote access (i.e. WAN), use the IP address shown on the Device
Information screen and login with remote username and password.
STEP 2: A dialog box will appear, such as the one below. Enter the default
username and password, as defined in section 3.1 Default Settings.

14
Click OK to continue.
NOTE: The login password can be changed later (see section 9.5.1)
STEP 3: After successfully logging in for the first time, you will reach this screen.

15

16
Chapter 4 Device Information
The web user interface is divided into two windowpanes, the main menu (at left) and
the display screen (on the right). The main menu has several options and selecting
each of these options opens a submenu with more selections.
NOTE: The menu items shown are based upon the configured connection(s) and
user account privileges. For example, if NAT and Firewall are enabled, the
main menu will display the NAT and Security submenus. If either is
disabled, their corresponding menu(s) will also be disabled.
Device Info is the first selection on the main menu so it will be discussed first.
Subsequent chapters will introduce the other main menu options in sequence.
The Device Info Summary screen will display at startup.
This screen shows hardware, software, IP settings and other related information.

17
4.1 WAN
Select WAN from the Device Info submenu to display the configured PVC(s).
Heading
Description
Interface
Name of the interface for WAN
Description
Name of the WAN connection
Type
Shows the connection type
VlanMuxId
Shows 802.1Q VLAN ID
IPv6
Shows if IPv6 is enabled on this interface or not.
IGMP
Shows Internet Group Management Protocol (IGMP) status
MLD
Shows Multicast Listener Discovery (MLD) status
NAT
Shows Network Address Translation (NAT) status
Firewall
Shows the status of Firewall
Status
Lists the status of DSL link
IPv4 Address
Shows WAN IPv4 address
PPP
connect/disconnect
Shows the PPP connection status
IPv6 Address
Shows WAN IPv6 address
IPv6 Unnumbered
Model Shows if unnumbered model is used or not; Only ppp interfaces can use this model and in this model, only IPv6
link-local address is used on the interface.

18
4.2 Statistics
This selection provides LAN, WAN, ATM and DSL statistics.
NOTE: These screens are updated automatically every 15 seconds. Click Reset
Statistics to perform a manual update of these statistics.
4.2.1 LAN Statistics
This screen shows data traffic statistics for each LAN interface.
Heading
Description
Interface
LAN interface(s)
Received/Transmitted: - Bytes
- Pkts
- Errs
- Drops
Number of Bytes
Number of Packets
Number of packets with errors
Number of dropped packets

19
4.2.2 WAN Service
This screen shows data traffic statistics for each WAN interface.
Heading
Description
Interface
WAN interfaces
Description
WAN service label
Received/Transmitted - Bytes
-Pkts
-Errs
-Drops
Number of Bytes
Number of Packets
Number of packets with errors
Number of dropped packets