Asus Internet Security Router Uživatelský manuál stáhnout pdf (Strana 158)

Appendix 15. Troubleshooting Internet Security Router User’s Manual

142

Figure 15.2. Using the nslookup Utility

There may be several addresses associated with an Internet name. This is common for web sites that receive

heavy traffic; they use multiple, redundant servers to carry the same information.

To exit from the nslookup utility, type exit and press <Enter> at the command prompt.

1 2 ... 153 154 155 156 157 158 159 160 161 162 163 ... 166 167

Internet Security 1
Table of Contents 3
List of Figures 11
List of Tables 14
1 Introduction 17
2.1 Parts List 19
2.2 Front Panel 19
2.3 Rear Panel 19
2.4 Major Features 20
2.4.1.6 URL Filtering 22
2.4.1.7 Log and Alerts 22
2.4.2 VPN 23
3 Quick Start Guide 25
3.2.1 Before you begin 27
3.2.2 Windows[CT6]® XP PCs: 27
3.2.3 Windows® 2000 PCs: 27
3.3.3 Testing Your Setup 36
Manager[CT9] 37
4.2 Functional Layout 38
5 Configuring LAN Settings 41
5.2.1 What is DHCP? 42
5.2.2 Why use DHCP? 43
just go to the 44
5.3 DNS 45
5.4 Viewing LAN Statistics 46
6 Configuring WAN Settings 47
6.3 Dynamic IP 48
6.4 Static IP 50
6.5 Viewing WAN Statistics 51
7 Configuring Routes 53
7.3 Static Routing 54
8 Configuring DDNS 57
9.1 Firewall Overview 61
9.2 NAT Overview 62
9.2.2 Dynamic NAT 63
Translation) 64
9.2.4 Reverse Static NAT 65
9.3.3 Add Inbound ACL Rules 68
9.5 Configuring URL Filters 74
9.5.3 Add an URL Filter Rule 75
Access) 77
9.6.2.3 Add a Service 79
9.6.2.4 Modify a Service 80
9.6.2.5 Delete a Service 80
Application Filter) 84
9.7.2 Configuring IP Pool 89
9.7.2.3 Add an IP Pool 90
9.7.2.4 Modify an IP Pool 90
9.7.2.5 Delete an IP Pool 91
9.7.2.6 IP Pool Example 91
9.7.3 Configuring NAT Pool 92
9.7.3.3 Add a NAT Pool 94
9.7.3.4 Modify a NAT Pool 94
9.7.3.5 Delete a NAT Pool 94
9.7.3.6 NAT Pool Example 94
9.7.4 Configuring Time Range 96
9.7.4.3 Add a Time Range 97
9.7.4.4 Modify a Time Range 97
9.7.4.5 Delete a Time Range 98
9.7.4.7 Time Range Example 98
10 Configuring VPN 101
10.3.2 Modify VPN Rules 108
10.3.3 Delete VPN Rules 108
10.3.4 Display VPN Rules 108
10.4.2 Modify VPN Rules 110
10.4.3 Delete VPN Rules 110
10.4.4 Display VPN Rules 110
10.5 VPN Statistics 111
10.6 VPN Connection Examples 112
Configuring Remote Access 125
Example 128
12 System Management 139
12.4 Setup Date and Time 141
12.6 Upgrade Firmware 144
13 ALG Configuration 147
14.1 IP Addresses 151
14.2 Network classes 151
14.3 Subnet masks 152
Class C: 255.255.255.0 153
15 Troubleshooting 155
15.1.1 ping 156
15.1.2 nslookup 157
16 Glossary 159
17 Index 165

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