D-Link NetDefend DFL-210 User Manual page 9

Network security firewall
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List of Figures
1.1. Packet Flow Schematic Part I ...........................................................................20
1.2. Packet Flow Schematic Part II ..........................................................................21
1.3. Packet Flow Schematic Part III .........................................................................22
1.4. Expanded Apply Rules Logic ............................................................................23
3.1. Simplified NetDefendOS Traffic Flow ............................................................. 102
4.1. Using Local IP Address with an Unbound Network ............................................ 126
4.2. A Route Failover Scenario for ISP Access ......................................................... 131
4.3. The RLB Round Robin Algorithm ................................................................... 142
4.4. The RLB Spillover Algorithm ......................................................................... 142
4.5. A Route Load Balancing Scenario ................................................................... 145
4.6. Virtual Links Example 1 ................................................................................ 150
4.7. Virtual Links Example 2 ................................................................................ 151
4.8. Multicast Forwarding - No Address Translation ................................................. 156
4.9. Multicast Forwarding - Address Translation ...................................................... 158
4.10. Multicast Snoop ......................................................................................... 160
4.11. Multicast Proxy .......................................................................................... 160
4.12. Non-transparent Mode Internet Access ........................................................... 171
4.13. Transparent Mode Internet Access ................................................................. 172
4.14. Transparent Mode Scenario 1 ........................................................................ 173
4.15. Transparent Mode Scenario 2 ........................................................................ 174
4.16. An Example BPDU Relaying Scenario ........................................................... 177
6.1. Deploying an ALG ....................................................................................... 196
6.2. HTTP ALG Processing Order ......................................................................... 199
6.3. SMTP ALG Processing Order ......................................................................... 209
6.4. DNSBL SPAM Filtering ................................................................................ 211
6.5. TLS Termination .......................................................................................... 239
6.6. Dynamic Content Filtering Flow ..................................................................... 245
6.7. IDP Database Updating ................................................................................. 266
7.1. NAT IP Address Translation .......................................................................... 284
7.2. Anonymizing with NAT ................................................................................ 287
8.1. Normal LDAP Authentication ........................................................................ 308
8.2. LDAP for PPP with CHAP, MS-CHAPv1 or MS-CHAPv2 .................................. 309
9.1. The AH protocol .......................................................................................... 339
9.2. The ESP protocol ......................................................................................... 340
9.3. PPTP Client Usage ....................................................................................... 370
9.4. Certificate Validation Components .................................................................. 372
10.1. Packet Flow of Pipe Rule Set to Pipe .............................................................. 380
10.2. FwdFast Rules Bypass Traffic Shaping ........................................................... 380
10.3. The Eight Pipe Precedences .......................................................................... 384
10.4. Minimum and Maximum Pipe Precedence ....................................................... 385
10.5. Traffic grouped per IP address ...................................................................... 387
10.6. A Basic Traffic Shaping Scenario .................................................................. 390
10.7. IDP Traffic Shaping P2P Scenario ................................................................. 396
10.8. A Server Load Balancing Configuration .......................................................... 401
10.9. Connections from Three Clients .................................................................... 403
10.10. Stickiness and Round-Robin ....................................................................... 404
10.11. Stickiness and Connection Rate ................................................................... 404
11.1. High Availability Setup ............................................................................... 413
D.1. The 7 Layers of the OSI Model ...................................................................... 460
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