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14-34 User’s Reference Guide
Example filters
Example 1
Incoming packet has the source address of 200.1.1.28
This incoming IP packet has a source IP address that matches the network address in the Source IP Address
field (00000000) in the Netopia R7200. This will not forward this packet.
Example 2
Incoming packet has the source address of 200.1.1.184.
Filter Rule: 200.1.1.0 (Source IP Network Address)
255.255.255.128 (Source IP Mask)
Forward = No (What happens on match)
IP Address Binary Representation
200.1.1.28 00011100 (Source address in incoming IP packet)
AND
255.255.255.128 10000000 (Perform the logical AND)
00000000 (Logical AND result)
Filter Rule: 200.1.1.0 (Source IP Network Address)
255.255.255.128 (Source IP Mask)
Forward = No (What happens on match)
IP Address Binary Representation
200.1.1.184 10111000 (Source address in incoming IP packet)
AND
255.255.255.128 10000000 (Perform the logical AND)
10000000 (Logical AND result)
- R7200 SDSL Router 1
- Part I: Getting Started 3
- Part III: Appendixes 9
- User’s Reference Guide 12
- Overview 13
- Features and capabilities 13
- How to use this guide 14
- 2-4 User’s Reference Guide 18
- Find a location 19
- What you need 20
- Netopia R7200 LED front panel 22
- 10Base-T 26
- Adding an external modem 27
- Ethernet 28
- Auxiliary Console Power 28
- Before running SmartStart 30
- Easy option 32
- Advanced option 33
- Sharing the Connection 34
- 5-14 User’s Reference Guide 42
- Configuring Telnet software 45
- Easy Setup console screens 47
- SDSL Line Configuration 50
- Easy Setup Profile 51
- IP Easy Setup 52
- WAN configuration 57
- The default profile 62
- System configuration screens 65
- System configuration features 67
- Network protocols setup 68
- Filter sets (firewalls) 68
- Date and time 68
- Console configuration 69
- Security 70
- Upgrade feature set 70
- Installing the Syslog client 71
- 8-16 User’s Reference Guide 72
- WAN Configuration 74
- Backup Configuration screen 75
- IP Setup screen 76
- Connection Profiles 77
- Management/Statistics 79
- QuickView 81
- Event Logs 81
- SNMP Support 81
- 9-10 User’s Reference Guide 82
- 10-4 User’s Reference Guide 86
- IP setup 93
- IP subnets 97
- Static routes 99
- IP address serving 103
- IP Address Pools 106
- DHCP NetBIOS Options 108
- MacIP (KIP forwarding) setup 110
- 10-30 User’s Reference Guide 112
- IPX features 113
- IPX definitions 113
- IPX address 114
- NetBIOS 115
- IPX spoofing 115
- IPX setup screen 115
- IPX routing tables 117
- 11-6 User’s Reference Guide 118
- AppleTalk networks 119
- AppleTalk protocol 119
- Routers and seeding 121
- Installing AppleTalk 122
- Configuring AppleTalk 124
- EtherTalk setup 124
- LocalTalk setup 125
- AURP setup 126
- Quick View status overview 131
- General status 132
- Current status 133
- Status lights 133
- Statistics & Logs 134
- General Statistics 134
- Event histories 135
- Routing tables 137
- Served IP Addresses 140
- Reset All Leases 141
- Release BootP Leases 141
- System Information 142
- The SNMP Setup screen 143
- SNMP traps 144
- Web-based management pages 146
- System Information page 146
- Event History pages 147
- 13-18 User’s Reference Guide 148
- WAN Event History page 148
- Monitoring Tools 13-19 149
- Device Event History page 149
- 13-20 User’s Reference Guide 150
- Suggested security measures 151
- User accounts 151
- Dial-in console access 153
- Telnet access 154
- About filters and filter sets 154
- How filter sets work 155
- How individual filters work 156
- Design guidelines 161
- Adding a filter set 163
- Viewing filter sets 166
- Modifying filter sets 167
- Deleting a filter set 167
- A sample IP filter set 167
- IPX filters 171
- IPX packet filters 172
- IPX packet filter sets 173
- IPX SAP filters 175
- IPX SAP filter sets 177
- Firewall tutorial 179
- General firewall terms 179
- Basic IP packet components 179
- Basic protocol types 179
- Firewall design rules 180
- Filter basics 183
- Example filters 184
- Trace Route 190
- Telnet client 191
- Factory defaults 192
- Updating firmware 193
- Downloading configuration files 194
- Uploading configuration files 195
- Restarting the system 198
- Configuration problems 201
- Console connection problems 202
- Network problems 202
- Power outages 203
- Technical support 204
- How to reach us 204
- A-6 User’s Reference Guide 206
- What is IP? 207
- About IP addressing 207
- Subnets and subnet masks 208
- Distributing IP addresses 211
- Configuration 213
- Using address serving 214
- Nested IP subnets 217
- Internet 217
- Packet header types 219
- Broadcasts 219
- B-14 User’s Reference Guide 220
- Network configuration 221
- Background 221
- Exported services 225
- Important notes 226
- Binary Conversion Table D-1 229
- D-2 User’s Reference Guide 230
- E-4 User’s Reference Guide 234
- 1300 ohms 235
- Description 236
- Power requirements 236
- Environment 236
- Software and protocols 237
- Agency approvals 238
- Regulatory notices 238
- Important safety instructions 239
- G-2 User’s Reference Guide 242
- 8 User’s Reference Guide 250
- 2 User’s Reference Guide 258
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