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Oceniono. / 5. Na podstawie oceny klientów
Appendix B IP Addresses and Subnetting
NBG-419N User’s Guide
243
By convention, subnet masks always consist of a continuous sequence of ones
beginning from the leftmost bit of the mask, followed by a continuous sequence of
zeros, for a total number of 32 bits.
Subnet masks can be referred to by the size of the network number part (the bits
with a “1” value). For example, an “8-bit mask” means that the first 8 bits of the
mask are ones and the remaining 24 bits are zeroes.
Subnet masks are expressed in dotted decimal notation just like IP addresses. The
following examples show the binary and decimal notation for 8-bit, 16-bit, 24-bit
and 29-bit subnet masks.
Network Size
The size of the network number determines the maximum number of possible
hosts you can have on your network. The larger the number of network number
bits, the smaller the number of remaining host ID bits.
An IP address with host IDs of all zeros is the IP address of the network
(192.168.1.0 with a 24-bit subnet mask, for example). An IP address with host
IDs of all ones is the broadcast address for that network (192.168.1.255 with a
24-bit subnet mask, for example).
Network Number 11000000 10101000 00000001
Host ID 00000010
Table 82 Subnet Masks
BINARY
DECIMAL
1ST
OCTET
2ND
OCTET
3RD
OCTET
4TH
OCTET
8-bit mask 11111111 00000000 00000000 00000000 255.0.0.0
16-bit
mask
11111111 11111111 00000000 00000000 255.255.0.0
24-bit
mask
11111111 11111111 11111111 00000000 255.255.255.0
29-bit
mask
11111111 11111111 11111111 11111000 255.255.255.24
8
Table 81 Subnet Mask - Identifying Network Number
1ST
OCTET:
(192)
2ND
OCTET:
(168)
3RD
OCTET:
(1)
4TH
OCTET
(2)
- NBG-419N 1
- About This User's Guide 3
- Customer Support 4
- Document Conventions 5
- Icons Used in Figures 6
- Safety Warnings 7
- Contents Overview 10
- NBG-419N User’s Guide 10
- Table of Contents 11
- Introduction 19
- CHAPTER 1 21
- 1.5 LEDs 22
- LED COLOR STATUS DESCRIPTION 23
- CHAPTER 2 25
- 2.3 Connect to Internet 26
- 2.3.1 Connection Type: DHCP 27
- 2.3.3 Connection Type: PPPoE 28
- 2.3.4 Connection Type: PPTP 30
- 2.3.5 Connection Type: L2TP 31
- Chapter 2 Connection Wizard 32
- 2.4 Router Password 33
- 2.5 Wireless Security 33
- CHAPTER 3 37
- 3.2.1 Login Screen 38
- 3.2.2 Password Screen 39
- 3.2.3 Home Screen 39
- 3.2.3.1 Weather Edit 40
- 3.3 Resetting the NBG-419N 41
- CHAPTER 4 43
- 4.4 DHCP Table 44
- 4.5 Packet Statistics 45
- 4.6 WLAN Station Status 46
- Chapter 4 Monitor 47
- Chapter 4 Monitor 48
- CHAPTER 5 49
- CHAPTER 6 51
- 6.2 What You Can Do 52
- 6.3 What You Need to Know 52
- 6.4 Navigation Panel 53
- 6.5 Network Map 53
- 6.6 Control Panel 54
- 6.6.1 Game Engine 55
- 6.6.2 Power Saving 56
- 6.6.3 Content Filter 57
- 6.6.4 Bandwidth MGMT 58
- 6.6.5 Firewall 58
- 6.6.6 Wireless Security 59
- 6.6.7 WPS 60
- Chapter 6 Easy Mode 62
- CHAPTER 7 63
- 7.3 Status Screen 64
- Chapter 7 Router Mode 65
- ICON DESCRIPTION 65
- 7.3.1 Navigation Panel 67
- Chapter 7 Router Mode 68
- LINK TAB FUNCTION 68
- CHAPTER 8 71
- 8.3 What You Need to Know 72
- Maintenance Settings 73
- 8.4 AP Mode Status Screen 74
- Chapter 8 Access Point Mode 75
- 8.5 LAN Screen 76
- Chapter 8 Access Point Mode 78
- CHAPTER 9 79
- 9.3 What You Need to Know 80
- 9.4 WISP Mode Status Screen 81
- Chapter 9 WISP Mode 82
- 9.5.0.1 No Security 84
- 9.5.1 Static WEP 85
- Table 32 WEP (WISP) 86
- 9.5.2 WPA(2)-PSK 87
- 9.5.3 Advance Screen 88
- CHAPTER 10 89
- NBG-419N 91
- (No WPS) 93
- Figure 64 Confirm Save 95
- Figure 65 Link Status 96
- CHAPTER 11 99
- 11.2 What You Can Do 100
- 11.3 What You Should Know 100
- 11.3.1.1 SSID 101
- 11.3.1.2 MAC Address Filter 101
- 11.3.1.3 Encryption 101
- 11.3.1.5 WDS 102
- 11.3.1.4 WPS 102
- 11.4.1 No Security 104
- 11.4.2 WEP Encryption 105
- Chapter 11 Wireless LAN 107
- LABEL DESCRIPTION 107
- 11.4.3 WPA-PSK/WPA2-PSK 108
- 11.5 MAC Filter 109
- 11.8 WPS Screen 112
- 11.9 WPS Station Screen 113
- 11.10 Scheduling Screen 114
- 11.11 WDS Screen 115
- Chapter 11 Wireless LAN 118
- CHAPTER 12 119
- 12.3 What You Need To Know 120
- 12.3.2 Multicast 121
- 12.4 Internet Connection 122
- Chapter 12 WAN 123
- 12.4.2 PPPoE Encapsulation 124
- 12.4.3 PPTP Encapsulation 126
- Chapter 12 WAN 128
- 12.4.4 L2TP Encapsulation 129
- 12.5 Advanced WAN Screen 132
- 12.6 IGMP Snooping Screen 132
- CHAPTER 13 135
- 13.3 What You Need To Know 136
- 13.4 LAN IP Screen 137
- 13.5 IP Alias Screen 138
- CHAPTER 14 139
- 14.4 Advanced Screen 140
- Chapter 14 DHCP Server 141
- Chapter 14 DHCP Server 142
- CHAPTER 15 143
- 15.2 What You Can Do 144
- 15.3 General NAT Screen 144
- 15.5 NAT Advanced Screen 147
- CHAPTER 16 151
- 16.4 Dynamic DNS Screen 152
- CHAPTER 17 153
- 17.3 IP Static Route Screen 154
- Chapter 17 Static Route 155
- Chapter 17 Static Route 156
- CHAPTER 18 157
- Table 62 Network > RIP 158
- PART III 159
- CHAPTER 19 161
- 19.2 What You Can Do 162
- 19.3 What You Need To Know 162
- 19.5 Services Screen 163
- Chapter 19 Firewall 164
- Chapter 19 Firewall 165
- CHAPTER 20 167
- 20.4 Content Filter Screen 168
- Chapter 20 Content Filter 169
- Chapter 20 Content Filter 170
- Management 171
- CHAPTER 21 173
- 21.3 What You Need To Know 174
- 21.4 General Screen 174
- 21.5 Advanced Screen 175
- Configuration 179
- 21.6 Monitor Screen 180
- CHAPTER 22 183
- 22.4 WWW Screen 184
- Chapter 22 Remote Management 185
- Chapter 22 Remote Management 186
- CHAPTER 23 187
- 23.4 UPnP Screen 188
- 23.5 Technical Refereance 189
- Figure 117 System Tray Icon 191
- Maintenance and 195
- Troubleshooting 195
- CHAPTER 24 197
- Chapter 24 Maintenance 198
- CHAPTER 25 199
- 25.4 Password Screen 200
- CHAPTER 26 201
- Chapter 26 Time 202
- Chapter 26 Time 203
- CHAPTER 27 205
- CHAPTER 28 207
- 28.3 Configuration Screen 208
- Chapter 28 Backup/Restore 210
- CHAPTER 29 211
- Chapter 29 Reset/Restart 212
- CHAPTER 30 213
- Access Point 214
- 30.4 Sys Op Mode Screen 215
- Chapter 30 Sys OP Mode 216
- CHAPTER 31 217
- I forgot the password 218
- 31.3 Internet Access 220
- Defaults 221
- AP or router) 222
- Chapter 31 Troubleshooting 224
- CHAPTER 32 225
- FEATURE DESCRIPTION 226
- Table 80 Firmware Features 227
- Appendices and 231
- APPENDIX A 233
- JavaScripts 236
- Java Permissions 238
- JAVA (Sun) 239
- Figure 142 Java (Sun) 240
- APPENDIX B 241
- Subnet Masks 242
- Network Size 243
- Notation 244
- Subnetting 245
- Example: Four Subnets 246
- Table 85 Subnet 1 247
- Table 86 Subnet 2 247
- Table 87 Subnet 3 247
- Table 88 Subnet 4 247
- Example: Eight Subnets 248
- Subnet Planning 248
- Configuring IP Addresses 249
- Private IP Addresses 250
- APPENDIX C 251
- Windows 95/98/Me 252
- Configuring 253
- Verifying Settings 254
- Windows 2000/NT/XP 255
- Macintosh OS 8/9 261
- Macintosh OS X 263
- Using Configuration Files 266
- 32.1.1 Verifying Settings 268
- APPENDIX D 269
- Figure 172 RTS/CTS 272
- Fragmentation Threshold 273
- Preamble Type 273
- IEEE 802.1x 274
- Types of Authentication 275
- PEAP (Protected EAP) 276
- Dynamic WEP Key Exchange 276
- Encryption 277
- Security Parameters Summary 280
- APPENDIX E 281
- Appendix E Common Services 282
- Appendix E Common Services 283
- APPENDIX F 285
- Notices 286
- Industry Canada Statement 287
- IMPORTANT NOTE: 287
- Viewing Certifications 287
- ZyXEL Limited Warranty 288
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