D-Link 210 User Manual

Table of Contents

Preface ...............................................................................................................14
1. NetDefendOS Overview ....................................................................................16

1.1. Features ................................................................................................16
1.2. NetDefendOS Architecture ......................................................................19

1.2.1. State-based Architecture ...............................................................19
1.2.2. NetDefendOS Building Blocks .......................................................19
1.2.3. Basic Packet Flow ........................................................................20

1.3. NetDefendOS State Engine Packet Flow .....................................................23

2. Management and Maintenance ............................................................................28

2.1. Managing NetDefendOS ..........................................................................28

2.1.1. Overview ...................................................................................28
2.1.2. The Default Administrator Account .................................................29
2.1.3. The Web Interface .......................................................................29
2.1.4. The CLI .....................................................................................33
2.1.5. CLI Scripts .................................................................................41
2.1.6. Secure Copy ...............................................................................45
2.1.7. The Console Boot Menu ...............................................................47
2.1.8. Management Advanced Settings .....................................................48
2.1.9. Working with Configurations .........................................................49

2.2. Events and Logging ................................................................................55

2.2.1. Overview ...................................................................................55
2.2.2. Log Messages .............................................................................55
2.2.3. Creating Log Receivers .................................................................56
2.2.4. Logging to MemoryLogReceiver ....................................................56
2.2.5. Logging to Syslog Hosts ...............................................................56
2.2.6. SNMP Traps ...............................................................................58
2.2.7. Advanced Log Settings .................................................................59

2.3. RADIUS Accounting ..............................................................................60

2.3.1. Overview ...................................................................................60
2.3.2. RADIUS Accounting Messages ......................................................60
2.3.3. Interim Accounting Messages ........................................................62
2.3.4. Activating RADIUS Accounting .....................................................62
2.3.5. RADIUS Accounting Security ........................................................62
2.3.6. RADIUS Accounting and High Availability ......................................62
2.3.7. Handling Unresponsive Servers ......................................................63
2.3.8. Accounting and System Shutdowns .................................................63
2.3.9. Limitations with NAT ...................................................................63
2.3.10. RADIUS Advanced Settings ........................................................63

2.4. Hardware Monitoring ..............................................................................65
2.5. SNMP Monitoring ..................................................................................67

2.5.1. SNMP Advanced Settings .............................................................68

2.6. The pcapdump Command ........................................................................70
2.7. Maintenance ..........................................................................................73

2.7.1. Auto-Update Mechanism ...............................................................73
2.7.2. Backing Up Configurations ...........................................................73
2.7.3. Restore to Factory Defaults ............................................................74

3. Fundamentals ...................................................................................................77

3.1. The Address Book ..................................................................................77

3.1.1. Overview ...................................................................................77
3.1.2. IP Addresses ...............................................................................77
3.1.3. Ethernet Addresses .......................................................................79
3.1.4. Address Groups ...........................................................................80
3.1.5. Auto-Generated Address Objects ....................................................81
3.1.6. Address Book Folders ...................................................................81

3.2. Services ................................................................................................82

3.2.1. Overview ...................................................................................82
3.2.2. Creating Custom Services ..............................................................83