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11-2 User’s Reference Guide
IPX address
An IPX address consists of a network number, a node number, and a socket number. An IPX network number is
composed of eight hexadecimal digits. The network number must be the same for all nodes on a particular
physical network segment. The node number is composed of twelve hexadecimal digits and is usually the
hardware address of the interface card. The node number must be unique inside the particular IPX network.
Socket numbers correspond to the particular service being accessed.
Socket
A socket in IPX is the equivalent of a port in TCP/IP. Sockets route packets to different processes within a
single node. Novell has reserved several sockets for use in the NetWare environment:
Routing Information Protocol (RIP)
RIP, which was also derived from XNS, is a protocol that allows for the bidirectional transfer of routing tables
and provides timing information (ticks), so that the fastest route to a destination can be determined. IPX
routers use RIP to create and dynamically maintain databases of internetwork routing information. See the last
section in this chapter for more information on routing tables.
Service Advertising Protocol (SAP)
SAP is a protocol that provides servers and routers with a method to exchange service information. Using SAP,
servers advertise their services and addresses. Routers collect this information to dynamically update their
routing tables and share it with other routers. These broadcasts keep all routers on the internetwork
synchronized and provide real-time information on accessible servers on the internetwork.
Field Value Packet Type Description
00h Unknown Packet Type Used for all packets not clas-
sified by any other type
01h Routing Information Packet Unused for RIP packets
04h Service Advertising Packet Used for SAP packets
05h Sequenced Packet Used for SPX packets
11h NetWare Core Protocol Packet Used for NCP packets
14h Propagated Packet Used for Novell NetBIOS
- R2020 Dual Analog Router 1
- Part I: Getting Started 7 3
- Part III: Appendixes 15 10
- Overview 21
- Features and capabilities 21
- How to use this guide 22
- Find a location 23
- What you need 23
- 2 Telco 24
- 1 Ethernet 24
- Ethernet 26
- Line 2 Line 1 26
- Netopia R2020 LED front panel 28
- Before running SmartStart 29
- Easy option 32
- Advanced option 36
- Sharing the Connection 37
- 10Base-T 47
- Adding an external modem 48
- Configuring Telnet software 53
- Easy Setup console screens 55
- Beginning Easy Setup 57
- Easy Setup profile 57
- IP Easy Setup 58
- Easy Setup Security 60
- 7-6 User’s Reference Guide 68
- Deleting connection profiles 69
- System Configuration screens 69
- System Configuration features 70
- Network Protocols Setup 72
- Filter Sets (Firewalls) 72
- IP Address Serving 73
- Date and Time 73
- Console Configuration 73
- Security 74
- Upgrade Feature Set 74
- Installing the Syslog client 75
- Netopia R2020 back panel 79
- Scheduled connections 83
- ■ System 89
- ■ Connection 89
- 8-16 User’s Reference Guide 92
- Transit Internetwork 104
- User’s Reference Guide 108
- VPN QuickView 111
- ■ “PPTP Example” on page 9-19 121
- ■ “ATMP Example” on page 9-22 121
- 9-20 User’s Reference Guide 122
- 9-24 User’s Reference Guide 126
- Map Lists 130
- Server Lists 130
- Easy-PAT List 131
- Easy-Servers 131
- Add Server 139
- 10-16 User’s Reference Guide 142
- IP subnets 155
- Static routes 157
- IP address serving 161
- DHCP NetBIOS Options 163
- DHCP Relay Agent 166
- IPX Features 169
- IPX Definitions 169
- IPX address 170
- NetBIOS 171
- IPX Spoofing 171
- IPX setup 171
- IPX in the answer profile 173
- 11-6 User’s Reference Guide 174
- IPX routing tables 175
- 11-8 User’s Reference Guide 176
- AppleTalk networks 177
- AppleTalk protocol 177
- Routers and seeding 179
- Installing AppleTalk 180
- Configuring AppleTalk 182
- EtherTalk Setup 182
- LocalTalk Setup 183
- AURP setup 184
- 12-12 User’s Reference Guide 188
- Quick View status overview 189
- General Status 190
- Current Status 191
- Status lights 191
- Statistics & Logs 192
- General Statistics 192
- Event Histories 193
- Routing Tables 195
- Served IP Addresses 198
- Reset All Leases 199
- Release BootP Leases 199
- System Information 200
- The SNMP Setup screen 201
- SNMP traps 202
- 13-16 User’s Reference Guide 204
- Suggested security measures 205
- User accounts 206
- Dial-in Console Access 207
- Enable SmartStart/Web Server 208
- Telnet access 208
- About filters and filter sets 208
- How filter sets work 209
- How individual filters work 211
- Design guidelines 215
- Adding a filter set 217
- Viewing filter sets 220
- Modifying filter sets 221
- Deleting a filter set 221
- A sample IP filter set 221
- IPX filters 225
- IPX packet filters 226
- IPX packet filter sets 227
- IPX SAP filters 229
- IPX SAP filter sets 231
- Firewall tutorial 232
- General Firewall Terms 232
- Basic IP Packet Components 233
- Basic Protocol Types 233
- Firewall design rules 234
- Filter Basics 236
- Example Filters 237
- Token Security Authentication 240
- Securing network environments 240
- Using the SecurID token card 240
- Trace Route 249
- Telnet client 250
- Secure Authentication Monitor 250
- Factory defaults 251
- Updating firmware 252
- Downloading configuration files 253
- Uploading configuration files 254
- Restarting the system 257
- 15-14 User’s Reference Guide 258
- Configuration problems 261
- SmartStart Troubleshooting 262
- Console connection problems 262
- Network problems 262
- Power outages 263
- Technical support 263
- How to reach us 263
- SmartIP™ 267
- What is IP? 269
- About IP addressing 269
- Subnets and subnet masks 270
- Distributing IP addresses 273
- Configuration 275
- Using address serving 276
- Nested IP subnets 279
- Internet 279
- Broadcasts 281
- Packet header types 281
- C-14 User’s Reference Guide 282
- Binary Conversion Table D-1 283
- D-2 User’s Reference Guide 284
- E-4 User’s Reference Guide 288
- HD-15 DB-25 289
- Description 290
- Power requirements 290
- Environment 290
- Software and protocols 291
- Agency approvals 291
- Regulatory notices 291
- Important safety instructions 293
- F-6 User’s Reference Guide 294
- Trunk Line 297
- Class A, B, and C networks 300
- 8 User’s Reference Guide 304
- see IP addresses 307
- 2 User’s Reference Guide 312
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