ZyXEL Communications 794M 10

		Prestige 794M User’s Guide
4.3 DNS ...................................................................................................................		54
4.4	SHDSL Parameters ............................................................................................	55
Chapter 5
System ....................................................................................................................		58
5.1	Overview ............................................................................................................	58
5.2	Time Zone ..........................................................................................................	58
5.3	Remote Access ..................................................................................................	59
5.4	Firmware Upgrade ............................................................................................	60
5.5	Backup/Restore ................................................................................................	60
5.6	Restart Router ....................................................................................................	61
5.7	User Management ..............................................................................................	62
	5.7.1 Create a New User Account .....................................................................	62
Chapter 6
Firewall....................................................................................................................		64
6.1	Overview ...........................................................................................................	64
6.2	Types of Firewalls ..............................................................................................	64
	6.2.1 Packet Filtering Firewalls ..........................................................................	64
	6.2.2 Application-level Firewalls ........................................................................	64
	6.2.3 Stateful Inspection Firewalls .....................................................................	65
6.3	General Settings ................................................................................................	66
6.4	Packet Filter .......................................................................................................	67
	6.4.1 Add a New TCP/UDP Packet Filter ..........................................................	69
	6.4.2 Add a New Raw Packet Filter ...................................................................	70
6.5	Intrusion Detection .............................................................................................	71
6.6	URL Filter ...........................................................................................................	73
	6.6.1 Keywords Filtering ...................................................................................	74
	6.6.2 Domain Filtering .......................................................................................	75
6.7	Firewall Log .......................................................................................................	76
Chapter 7
VPN..........................................................................................................................		78
7.1	Overview ............................................................................................................	78
7.2 PPTP ..................................................................................................................		78
	7.2.1 PPTP Summary .......................................................................................	78
	7.2.2 Creating a PPTP VPN Rule ......................................................................	79
	7.2.2.1 Remote Access Connection ..........................................................	79
	7.2.2.2 LAN to LAN Connection .................................................................	81
7.3	IPSec ..................................................................................................................	83
	7.3.1 AH (Authentication Header) .....................................................................	83
	7.3.2 ESP (Encapsulating Security Payload) ....................................................	83
	7.3.3 Perfect Forward Secrecy (PFS) ...............................................................	84

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