ZyXEL Communications P-2812HNU-51c Manual

P-2812HNU-51c
Dual WAN VDSL2 IAD with 802.11n Wireless
Support Notes
Firmware Version 1.00BLL0B6
September 2009
Edition1.0

P-2812HNU-51C Support Notes
All contents copyright (c) 2009 ZyXEL Communications Corporation.
Table of Contents
General Application Notes ...................................................................................... 6
Highlights of P2812HNU-51c............................................................................ 6
Dual WAN to Simplify the Logistics for ISP.............................................. 6
Internet Access through 3G Networks........................................................ 6
Dual mode VDSL2/ADSL2+ functionality................................................. 6
Quality of Service (QoS)............................................................................ 7
TR-069 Remote Management .................................................................... 7
Multi-Services Application Scenario ...................................................................... 8
VDSL2 as WAN................................................................................................8
Ethernet as WAN...............................................................................................9
Prologue .................................................................................................... 9
Access Application Notes........................................................................................11
Web GUI ......................................................................................................... 11
Telnet .............................................................................................................. 12
Internet Connection .............................................................................................. 13
The Default Configured WAN Interfaces Available.......................................... 13
Bridge Mode (In the following example to configure a bridge WAN
interface, the Ethernet WAN is used.)....................................................... 13
IPoE Mode (In the following example to configure a IPoE WAN interface,
the VDSL WAN is used.) ......................................................................... 16
PPPoE Mode (In the following example to configure a PPPoE connection,
the ADSL WAN interface is used.)........................................................... 20
IGMP Multicast ProxyApplication Note.............................................................. 26
IP Multicast Introduction ................................................................................. 26
IGMP Multicast Proxy Configuration................................................... 27
VoIPApplication Notes.......................................................................................... 28
VoIP Introduction............................................................................................. 28
What is Voice over IP?............................................................................. 28
VoIP Configuration.......................................................................................... 29
VLAN Based Configuration Note......................................................................... 32
Environment.................................................................................................... 32
WAN Configuration......................................................................................... 32
INTERNET Service................................................................................. 33
IPTV Service ........................................................................................... 36
Interface Grouping........................................................................................... 38
Verification...................................................................................................... 40
Quality of Service Application Note...................................................................... 42

P-2812HNU-51C Support Notes
All contents copyright (c) 2009 ZyXEL Communications Corporation.
Environment.................................................................................................... 42
QoS configuration ........................................................................................... 42
Wireless Application Notes.................................................................................... 45
Wireless Introduction....................................................................................... 45
WEP Configuration (Wired Equivalent Privacy) Introduction .................. 45
Wi-Fi Protected Access Introduction................................................................ 47
Wireless Configuration .................................................................................... 48
WPS Application Notes ......................................................................................... 51
What is WPS?.................................................................................................. 51
WPS configuration .......................................................................................... 52
Maintenance Log................................................................................................... 55
Internal Maintenance ....................................................................................... 55
View the log in the Web GUI. .................................................................. 56
Maintenance Tools................................................................................................. 57
Maintenance Procedure.................................................................................... 57
Upgrading firmware................................................................................. 57
Backing-up the Configuration.................................................................. 57
Upload Configuration .............................................................................. 59
Restoring to Factory Default .................................................................... 60
Product FAQ.......................................................................................................... 62
Will the device work with my Internet connection?.................................. 62
What is PPPoE?....................................................................................... 62
Does the device support PPPoE?.............................................................. 62
How do I know I am using PPPoE?.......................................................... 62
Why does my provider use PPPoE? ......................................................... 62
Which Internet Applications can I use with the device?............................ 63
How can I configure the device? .............................................................. 63
Does device support dynamic IP addressing? ........................................... 63
What is the difference between the internal IP and the real IP from my ISP?
................................................................................................................ 63
How does e-mail work through the device?.............................................. 63
Is it possible to access a server running behind SUA from the outside
Internet? If possible, how? ....................................................................... 64
What DHCP capability does the device support?...................................... 64
How do I used the reset button, more over what field of parameter will be
reset by reset button? ............................................................................... 64
How does the device support TFTP?........................................................ 64
Can the device support TFTP over WAN?................................................ 64

P-2812HNU-51C Support Notes
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How fast can the data go? ........................................................................ 65
What is Multi-NAT? ................................................................................ 65
When do I need Multi-NAT?.................................................................... 66
What IP/Port mapping does Multi-NAT support? ..................................... 66
What is the difference between SUA and Multi-NAT?.............................. 67
What is BOOTP/DHCP?.......................................................................... 68
What is DDNS? ....................................................................................... 68
When do I need DDNS service?............................................................... 68
Wireless FAQ............................................................................................ 68
What is a Wireless LAN?......................................................................... 68
What are the advantages of Wireless LANs?............................................ 69
What are the disadvantages of Wireless LANs? ....................................... 69
Where can you find wireless 802.11 networks?........................................ 70
What is an Access Point? ......................................................................... 70
What is IEEE 802.11?.............................................................................. 70
What is 802.11b? ..................................................................................... 70
How fast is 802.11b?................................................................................ 70
What is 802.11a? ..................................................................................... 71
What is 802.11g? ..................................................................................... 71
What is 802.11n?..................................................................................... 71
Is it possible to use products from a variety of vendors?........................... 71
What is Wi-Fi?......................................................................................... 72
What types of devices use the 2.4GHz Band?........................................... 72
Does the 802.11 interfere with Bluetooth devices?................................... 72
Can radio signals pass through walls? ...................................................... 72
What are potential factors that may causes interference among WLAN
products? ................................................................................................. 73
What's the difference between a WLAN and a WWAN?.......................... 73
What is Ad Hoc mode? ............................................................................ 73
What is Infrastructure mode? ................................................................... 73
How many Access Points are required in a given area? ............................ 74
What is Direct-Sequence Spread Spectrum Technology – (DSSS)?.......... 74
What is Frequency-hopping Spread Spectrum Technology – (FHSS)? ..... 74
Do I need the same kind of antenna on both sides of a link?..................... 74
Why the 2.4 Ghz Frequency range?.......................................................... 74
What is Server Set ID (SSID)?................................................................. 75
What is an ESSID? .................................................................................. 75
How do I secure the data across an Access Point's radio link?.................. 75

P-2812HNU-51C Support Notes
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What is WEP?.......................................................................................... 75
What is the difference between 40-bit and 64-bit WEP?........................... 75
What is a WEP key? ................................................................................ 76
A WEP key is a user defined string of characters used to encrypt and
decrypt data?............................................................................................ 76
Can the SSID be encrypted?..................................................................... 76
By turning off the broadcast of SSID, can someone still sniff the SSID? .. 76
What are Insertion Attacks? ..................................................................... 76
What is Wireless Sniffer?......................................................................... 76
What is the difference between Open System and Shared Key of
Authentication Type?............................................................................... 77
What is 802.1x? ....................................................................................... 77
What is the difference between No authentication required, No access
allowed and Authentication required? ...................................................... 77
What is AAA? ......................................................................................... 78
What is RADIUS? ................................................................................... 78
What is WPA? ......................................................................................... 78
What is WPA-PSK?................................................................................. 78

P-2812HNU-51C Support Notes
All contents copyright (c) 2009 ZyXEL Communications Corporation.
General Application Notes
Highlights of P2812HNU-51c
The P-2812HNU-51c is a VDSL integrated access device (IAD), which provides
high-speed VDSL Internet access from major vendors to meet the worldwide market
requirements of triple-play services. The P-2812HNU-51c model also features built-in
802.11n WLAN which helps resolve some of those troublesome wirings. Two lines of
telephony service are provided using VoIP technology with SIP signaling protocol.
Additionally, it is designed with dual WAN function, suitable forxPON or WiMax
users. Userscan also leverage the USB interface in P-2812HNU-51c for file sharing or
together with 3G USB dongle for 3G backup.
Dual WAN to Simplify the Logistics for ISP
When a customer migrates from ADSL2+ or VDSL2 to PON or WiMax, the ISP only
needs to send out a “dumb”and relatively cheap bridge-device terminating the
physical connection, and provide an Ethernet-interface towards the customer. The
customer’s existing CPE (P-2812HNU-51c) will still be used for terminating the
IP-connection but now via the Ethernet WAN-interface. The end-users can still
experience in most cases from the original CPE, which is better than the customer
having to change the CPE due to the difference of physical connection.
Internet Access through 3G Networks
The P-2812HNU-51c with USB interface for 3G USB dongle provides convenient
Internet access for 3G networks to eliminate limitations of wired networks and to
further extend the last-mile connectivity. In Internet-challenged environments such
as rural or mountain areas, 3G connectivity may be the only viable solution; and it
can be used to provide temporary Internet access to places such as exhibition booths
as well. Furthermore, 3G access can be used as a WAN backup for high-availability
Internet connection in office environments.
Dual mode VDSL2/ADSL2+ functionality
The P-2812HNU-51c Series support dual- mode functionality that enables service
providers to support ATM or PTM on the same device. It offers bi-directional high
speed VDSL2, VDSL connection with speed up to 100/45Mbps in PTM mode and
24/1Mbps ADSL2+, ADSL2, ADSL connection in ATM mode. This powerful feature
ensures the service provider can support the connection not only on the IP network

P-2812HNU-51C Support Notes
All contents copyright (c) 2009 ZyXEL Communications Corporation.
but also the legacy ATM network without changing the CPE.
Quality of Service (QoS)
The P-2812HNU-51c series equipped with both ATM and IP QoS features.
Service provider can base on their service plan, freely design their QoS policy and
prioritize the mission-critical services such as IPTV and VoIP. This increases both
network efficiency and productivity to enable service providers to bring real
multi-play into the residential user’s life.
TR-069 Remote Management
With TR-069 standard management specifications, the service provider is able to
manage and configure client devices remotely without the end-user’s manual
intervention. This unique feature not only offers user a true “plug-and-play”
experience but also reduces the complexity of deployment, therefore reducing the
service provider’s operation and maintenance costs.

P-2812HNU-51C Support Notes
All contents copyright (c) 2009 ZyXEL Communications Corporation.
Multi-Services Application Scenario
VDSL2 as WAN

P-2812HNU-51C Support Notes
All contents copyright (c) 2009 ZyXEL Communications Corporation.
Ethernet as WAN
Prologue
 Before we begin.
The device is shipped with the following factory defaults:
1. IP address = 192.168.1.1, subnet mask = 255.255.255.0 (24 bits)
2. DHCP server enabled with IP pool starting from 192.168.1.33
3. Default username/password = admin/1234
 Setting up the PC (Windows OS)
1. Ethernet Connection for LAN access
 All PCs must have an Ethernet adapter card installed
2. TCP/IP Installation

P-2812HNU-51C Support Notes
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You must first install the TCP/IP software on each PC before you can use it for the
Internet access. If you have already installed the TCP/IP, go to the next section to
configure it; otherwise, follow these steps to install:
 In the Control Panel/Network window, click Add button.
 In the Select Network Component Type windows, select Protocol and click
Add.
 In the Select Network Protocol windows, select Microsoft from the
manufacturers, then select TCP/IP from the Network Protocols and click OK.
3. TCP/IP Configuration
Follow these steps to configure Windows TCP/IP:
 In the Control Panel/Network window, click the TCP/IP entry to select it and
click Properties button.
 In the TCP/IP Properties window, select obtain an IP address automatically.
Note: Do not assign the arbitrary IP address and subnet mask to your PCs; otherwise,
you will not be able to access the Internet.
1. Click the WINS configuration tab and select Disable WINS Resolution.
2. Click the Gateway tab. Highlight any installed gateways and click the Remove
button until there are none listed.
3. Click the DNS Configuration tab and select Disable DNS.
4. Click OK to save and close the TCP/IP properties window.
5. Click OK to close the Network window. You will be prompted to insert your
Windows CD or disk. When the drivers are updated, you will be asked if you
want to restart the PC. Make sure that your Device is powered on before
answering “Yes”to the prompt. Repeat the above steps for each Windows PC
on your network.

P-2812HNU-51C Support Notes
All contents copyright (c) 2009 ZyXEL Communications Corporation.
Access Application Notes
Web GUI
The following procedure is for the most typical usage of device using a Browser.
The device supports the embedded Web server that allows you to use Web browser
to configure it. Before configuring the router using Browser, please be sure there is
no Telnet or Console login.
a. Login the P2812HNU-51c via Web GUI.
1. Set up your PC/NB IP address to be a DHCP client.
2. Connect to a LAN port of P2812HNU-51c via RJ45 Ethernet cable and open
your IE browser.
3. The default IP of P2812HNU-51c is https://192.168.1.1
username/password= admin/1234.

P-2812HNU-51C Support Notes
All contents copyright (c) 2009 ZyXEL Communications Corporation.
Telnet
Telnet is also a common way to configure the device, but we have to use CLI
commands which may not be quick-to-learn. The commonly used CLI commands are
upon request to PLM.
b. Login the P2812HNU-51c via Telnet.
1. Set up your PC/NB IP address to be a DHCP client.
2. Connect to a LAN port of P2812HNU-51c via RJ45 Ethernet cable and open
your Hyper Terminal software (capable of using TELNET).
3. The default IP of P2812HNU-51c is 192.168.1.1 username/password =
admin/1234.
4. Type the command line “atsh”to display the basic information of device.

P-2812HNU-51C Support Notes
All contents copyright (c) 2009 ZyXEL Communications Corporation.
Internet Connection
The Default Configured WAN Interfaces Available
In the default configuration file, there are already 3 WAN interfaces configured which
are Ethernet WAN (eth4100), ADSL WAN (atm0), and VDSL WAN (ptm0.100). On
Network>WAN>Internet Connection page, the current mode will be identified.
Please refer to the Web GUI page below:
NOTE: The following sections are step by step examples of how to configure
different Internet Connection types (PPPoE, IPoE, and Bridge) with different WAN
interfaces(Ethernet, VDSL, and ADSL).
Bridge Mode (In the following example to configure a bridge WAN
interface, the Ethernet WAN is used.)
Scenario:
The P2812HNU-51c is a CPE bridge.
a. Bridge Mode
1. Go to Network > WAN > Internet Connection.
2. Click Add
3. Select the Layer 2 interface for this service, e.g “eth4.100”

P-2812HNU-51C Support Notes
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4. Click Next
5. Select the WAN service type, i.e. “Bridging”
6. Enter the Service Description or use the default value.
7. Configure Rate Limitation, or set up VLAN ID if needed.
8. Click Next

P-2812HNU-51C Support Notes
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9. Click Apply/Save, and then the WAN bridge interface (ETH/Bridge) just
configured will be displayed on the Network>WAN>Internet Connection
page.

P-2812HNU-51C Support Notes
All contents copyright (c) 2009 ZyXEL Communications Corporation.
IPoE Mode (In the following example to configure a IPoE WAN interface,
the VDSL WAN is used.)
Scenario:
The P2812HNU-51c is a DHCP client in routing mode.
b. IPoE Mode
1. Go to Network > WAN > Internet Connection.
2. Click Add
3. Select the Layer 2 interface for this service, e.g. “ptm0/(0_0_1)”
4. Click Next
5. Select the WAN service type, i.e. “IP over Ethernet”
6. Enter the Service Description, or use the default values.
7. Configure Rate Limitation, or set up VLAN ID if needed.

P-2812HNU-51C Support Notes
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8. Click Next
9. Select Obtain an IP address automatically. There is also the option to set a
static IP. Please select the option that fit in the currenttopology.
10. Click Next
11. Select Enable NAT
12. Option to select IGMP Multicast Proxy if needed.

P-2812HNU-51C Support Notes
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13. Click Next
Note: Default gateway interface list can have multiple WAN interfaces serving as
system default gateways but only one will be used according to priority, with the
first being the highest and the last one the lowest priority if the WAN interface is
connected(No Backup WAN function support). Priority order can be changed by
removing all and adding them again.
14. Use the Arrow button to move the interface just created to the Box on the
left (Selecte4d Default Gateway Interface.)

P-2812HNU-51C Support Notes
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15. Click Next
16. Select Obtain DNS info from a WAN interface
Note: Select DNS Server Interface from available WAN interfaces OR enter static
DNS server IP addresses for the system. In ATM mode, if only a single PVC with
IPoA or static IPoE protocol is configured, Static DNS server IP addresses must be
entered.
17. Click Next
18. Click Apply/Save

P-2812HNU-51C Support Notes
All contents copyright (c) 2009 ZyXEL Communications Corporation.
PPPoE Mode (In the following example to configure a PPPoE connection,
the ADSL WAN interface is used.)
In this example, how to create one PVC in ADSL interface is also demonstrated. By
default, ADSL WAN interface has only one PVC which is 8/35 and in default mode. If
multiple PVCs are required,separate individual PVC should be configured.
1. Go to Network> WAN > Layer2 Interface.
2. Select ATM from the Interface drop down list. And Click on “Add”.
3. Configure new PVC’s VCI/PCI(0/34), and Select DSL Link Type EoA(EoAis for
PPPoE, IPoE, and Bridge.)
4. Select Connection Mode (Default Mode).