User ManualTable of ContentsApplication Notes8General Application Notes8Internet Connection8Setup the Prestige as a DHCP Relay11Configure an Internal Server Behind SUA13Configure a PPTP server Behind SUA15Using NAT / Multi-NAT19About Filter & Filter Examples40Using the Dynamic DNS (DDNS)63Network Management Using SNMP65Using syslog71Using IP Alias75Using Call Scheduling77Using IP Multicast82Using Prestige traffic redirect84Using Universal Plug n Play (UPnP)87VoIP Application Notes92Setup SIP Account92Phone port settings96Phone book Speed dial98FAQ100ZyNOS FAQ100What is ZyNOS?100How do I access the embedded web configurator?100change it?101configurator?101program via LAN?101How do I upload or backup ROMFILE via web configurator?102LAN?102Why can't I make Telnet to Prestige from WAN?102What should I do if I forget the system password?103What is SUA? When should I use SUA?103What is the difference between NAT and SUA?103How many network users can the SUA/NAT support?104What are Device filters and Protocol filters?104Why can't I configure device filters or protocol filters?104Product FAQ104What is the Prestige Integrated Access Device?104Will the Prestige work with my Internet connection?105What do I need to use the Prestige?105What is PPPoE?105Does the Prestige support PPPoE?105How do I know I am using PPPoE?105Why does my provider use PPPoE?106Which Internet Applications can I use with the Prestige?106How can I configure the Prestige?106What network interface does the Prestige support?106What can we do with Prestige?106Does Prestige support dynamic IP addressing?106How does e-mail work through the Prestige?107Internet? If possible, how?107What DHCP capability does the Prestige support?107reset by reset button?107What network interface does the new Prestige series support?108How does the Prestige support TFTP?108Can the Prestige support TFTP over WAN?108How fast can the data go?108What is Multi-NAT?109When do I need Multi-NAT?109What IP/Port mapping does Multi-NAT support?110What is the difference between SUA and Multi-NAT?111What is BOOTP/DHCP?111What is DDNS?111When do I need DDNS service?112What DDNS servers does the Prestige support?112What is DDNS wildcard?112Does the Prestige support DDNS wildcard?112behind Prestige?112How do I setup my Prestige for routing IPsec packets over SUA?113VoIP FAQ113What is Voice over IP?113How does Voice over IP work?113Why use VoIP?113What is the relationship between codec and VoIP?114What advantage does Voice over IP can provide?114What is the difference between H.323 and SIP?114Can H.323 and SIP interoperate with one another?114What is voice quality?114How are voice quality normally rated?114What is codec?115What is the relation of codec and VoIP?115What codec does Prestige support?115Which codec should I choose?115What do I need in order to use SIP?115Unable to register with the SIP server?116I can register but can not establish a call?116I can make a call but the voice only goes one way not bothway?116I can receive a call but the voice only goes one way not bothway?116Firewall FAQ117What is a network firewall?117What makes Prestige firewall secure?117What are the basic types of firewalls?118What kind of firewall is the Prestige?118NAT built-in?119What is Denials of Service (DoS)attack?119What is Ping of Death attack?119What is Teardrop attack?119What is SYN Flood attack?119What is LAND attack?120What is Brute-force attack?120What is IP Spoofing attack?120What are the default ACL firewall rules in Prestige?120How can I protect against IP spoofing attacks?121Content Filter FAQ122IPSec FAQ122What is VPN?122Why do I need VPN?123What are most common VPN protocols?123What is PPTP?123What is L2TP?124What is IPSec?124What secure protocols does IPSec support?124What is SA?125What is IKE?125What is Pre-Shared Key?125What are the differences between IKE and manual key VPN?125What is Phase 1 ID for?125What are Local ID and Peer ID?126When should I use FQDN?126Is my Prestige ready for IPSec VPN?126How do I configure Prestige VPN?127How many VPN connections does Prestige support?127What VPN protocols are supported by Prestige?127What types of encryption does Prestige VPN support?127What types of authentication does Prestige VPN support?127to know?127Does Prestige support dynamic secure gateway IP?128What VPN gateway that has been tested with Prestige successfully?128What VPN software that has been tested with Prestige successfully?129Will ZyXEL support Secure Remote Management?129Does Prestige VPN support NetBIOS broadcast?129Is the host behind NAT allowed to use IPSec?129Where can I configure Phase 1 ID in Prestige?130IP type as Phase 1 ID, what should I know?130How can I keep a tunnel alive?13110/10II/10W/50/100 support in VPN/IPSec?131Can Prestige support IPSec passthrough?131IPSec gateway simultaneously?132Trouble Shooting132Using Embedded Packet Trace132Debug PPPoE Connection147CLI Command List159Web Request 72Block a client 72NetBIOS_WAN 72Size: 1.56 MBPages: 159Language: EnglishOpen manual