ZyXEL Communications 320W manual Your ISP checks the MAC address

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P320W Support Notes

Ethernet (10baseT) is the most popular cable modem interface standard for the PC. This automatically limits the speed of the connection to under 10 Mbps even if the cable modem can receive at 30 Mbps. Most Local Area Networks use 10baseT Ethernet, and although they are 10 Mbps networks, it takes a LOT longer than one second to transmit 10 megabits (or 1.25 megabytes) of data from one terminal to another.

Cable modems on the same node share bandwidth, which means that congestion is created when too many people are on simultaneously. One user downloading large graphic or video files can use a significant portion of shared bandwidth, slowing down access for other users in the same neighborhood.

Most independent Internet Service Providers today connect to the Internet using a single 1.5 Mbps "T1" telephone line. All of their subscribers share that 1.5 Mbps pipeline. Cable head-ends connecting to the Internet backbone using a T1 limit their subscribers to an absolute maximum of 1.5 Mbps.

To create the appearance of faster network access, service companies plan to store or "cache" frequently requested web sites and Usenet newsgroups on a server at their head-end. Storing data locally will remove some of the bottleneck at the backbone connection.

How fast can they go? In a perfect world (or lab) they can receive data at speeds up to 30 Mbps. In the real world, with cost conscious cable companies running the systems, the speed will probably fall to about 1.5 Mbps.

My Prestige can not get an IP address from the ISP to connect to the Internet, what can I do?

Currently, there are various ways that ISPs control their users. That is, the WAN IP is provided only when the user is checked as an authorized user. The ISPs currently use two ways:

1.Check if the 'MAC address' is valid

2.Check if the 'Host Name' is valid, e.g., @home

If you are not able to get the Internet IP from the ISP, check which authentication method your ISP uses and troubleshoot the problem as described below.

1. Your ISP checks the 'MAC address'

Some ISPs only provide an IP address to the user with an authorized MAC address. This authorized MAC can be the PC's MAC which is used by the ISP for the authentication. So, if a new network card is used or

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All contents copyright (c) 2005 ZyXEL Communications Corporation.

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Contents Prestige 320W P320W Support Notes Ireless FAQ Trouble Shooting Ethernet connection Internet ConnectionTCP/IP Configuration TCP/IP InstallationSetting up the Prestige router P320W Support Notes P320W Support Notes Configure an Internal Server Behind SUA Smtp Service Port NumberUsing the Dynamic DNS Ddns Snmp Overview Network Management Using SnmpP320W Support Notes SNMPv1 Operations Trap GetGetNext SetZyXEL Snmp Implementation Get Community Configure the Prestige for SnmpSet Community Using Prestige traffic redirectTraffic Redirect on LAN port What is UPnP Using Universal Plug n Play UPnPUsing UPnP in ZyXEL devices Go to Management-UPnP, check Enable UPnP service P320W Support Notes Finally, your video conversation is achieved What is Infrastructure mode? Infrastructure ModeP320W Support Notes Configuration Wireless Station to Infrastructure mode P320W Support Notes Double click on the AP you want to associated with MAC Filter Overview Wireless MAC Address FilteringZyXEL MAC Filter Implementation Configure the Wlan MAC FilterIntroduction WEP ConfigurationP320W Support Notes Setting up the Access Point Setting up the Station Key settingsP320W Support Notes P320W Support Notes Ieee 802.1x Introduction IeeeAuthentication Server AuthenticatorSupplicant Authentication Port State and Authentication Control Re-Authentication Eapol Exchange between 802.1x Authenticator and Supplicant P320W Support Notes Using WEB Configuration Using External Radius Authentication Server P320W Support Notes Site Survey Survey on Site PreparationP320W Support Notes P320W Support Notes What is the P320W 802.11g Wireless Firewall Router? FAQDoes the Prestige support PPPoE? What is PPPoE?Will the P320W work with my Internet connection? What do I need to use the Prestige?Which Internet Applications can I use with the Prestige? How do I know I am using PPPoE?Why does my provider use PPPoE? How can I configure the Prestige?How does e-mail work through the Prestige? How fast can the data go? What Dhcp capability does the Prestige support?Your ISP checks the MAC address Your ISP checks the Host Name What is Ddns What is BOOTP/DHCPWhen do I need Ddns service? What makes P320W secure? What is a network firewall?What are the basic types of firewalls? What kind of firewall is the P320W? What is Denials of Service DoS attack?What is Land attack? What is Ping of Death attack?What is Teardrop attack? What is SYN Flood attack?What is a Wireless LAN? What is IP Spoofing attack?What are the advantages of Wireless LANs? Where can you find wireless 802.11 networks? What are the disadvantages of Wireless LANs?What is an Access Point? What is 802.11g? What is Ieee 802.11?What is 802.11b? What is 802.11a?Is it possible to use products from a variety of vendors? What is Wi-Fi?Does the 802.11 interfere with Bluetooth devices? Can radio signals pass through walls?Whats the difference between a Wlan and a WWAN? What is Ad Hoc mode?What is Infrastructure mode? How many Access Points are required in a given area?What is Server Set ID SSID? What is Direct-Sequence Spread Spectrum Technology DSSS?What is Frequency-hopping Spread Spectrum Technology FHSS? Why the 2.4 Ghz Frequency range?What is a WEP key? What is an ESSID?What is WEP? What is the difference between 40-bit and 64-bit WEP?Open System What is Wireless Sniffer?Can the Ssid be encrypted? What are Insertion Attacks?What is AAA? What is 802.1x?What is RADIUS? Why cannot access the Internet? Why cannot access the Prestige from my computer?Your ISP checks the MAC address ZyXEL SUA Supporting Table Unable to run applicationsApplication Outgoing Connection Incoming Connection NAT-T P320W Support Notes