D-Link NetDefend DFL-210 User Manual page 7

9.4. PPTP/L2TP ......................................................................................... 202
9.4.1. PPTP ....................................................................................... 202
9.4.2. L2TP ....................................................................................... 203
10. Traffic Management ...................................................................................... 209
10.1. Traffic Shaping .................................................................................. 209
10.1.1. Introduction ............................................................................ 209
10.1.2. Traffic Shaping Basics .............................................................. 209
10.1.3. Traffic Shaping in NetDefendOS ................................................. 210
10.1.4. Pipes Basics ............................................................................ 211
10.1.5. Priorities and Guarantees ........................................................... 214
10.1.6. Grouping Users of a Pipe ........................................................... 219
10.2. Threshold Rules ................................................................................. 221
10.2.1. Overview ................................................................................ 221
10.2.2. Connection Rate/Total Connection Limiting .................................. 221
10.2.3. Grouping ................................................................................ 221
10.2.4. Rule Actions ........................................................................... 221
10.2.5. Multiple Triggered Actions ........................................................ 222
10.2.6. Exempted Connections .............................................................. 222
10.2.7. Threshold Rules and ZoneDefense .............................................. 222
10.2.8. Threshold Rule Blacklisting ....................................................... 222
10.3. Server Load Balancing ........................................................................ 223
10.3.1. Overview ................................................................................ 223
10.3.2. Identifying the Servers .............................................................. 224
10.3.3. The Load Distribution Mode ...................................................... 224
10.3.4. The Distribution Algorithm ........................................................ 224
10.3.5. Server Health Monitoring .......................................................... 226
10.3.6. SLB_SAT Rules ...................................................................... 226
11. High Availability .......................................................................................... 229
11.1. Overview .......................................................................................... 229
11.2. How rapid failover is accomplished ........................................................ 231
11.2.1. Shared IP addresses and Failover ................................................ 231
11.2.2. Cluster heartbeats ..................................................................... 231
11.2.3. The synchronization interface ..................................................... 232
11.3. High Availability Issues ....................................................................... 233
11.3.1. High Availability Configuration .................................................. 233
12. ZoneDefense ................................................................................................ 235
12.1. Overview .......................................................................................... 235
12.2. ZoneDefense Switches ......................................................................... 236
12.3. ZoneDefense Operation ....................................................................... 237
12.3.1. SNMP .................................................................................... 237
12.3.2. Threshold Rules ....................................................................... 237
12.3.3. Manual Blocking and Exclude Lists ............................................. 238
12.3.4. Limitations ............................................................................. 239
13. Advanced Settings ......................................................................................... 241
13.1. IP Level Settings ................................................................................ 241
13.2. TCP Level Settings ............................................................................. 245
13.3. ICMP Level Settings ........................................................................... 249
13.4. ARP Settings ..................................................................................... 250
13.5. Stateful Inspection Settings ................................................................... 252
13.6. Connection Timeouts .......................................................................... 254
13.7. Size Limits by Protocol ........................................................................ 255
13.8. Fragmentation Settings ........................................................................ 257
13.9. Local Fragment Reassembly Settings ..................................................... 261
13.10. DHCP Settings ................................................................................. 262
13.11. DHCPRelay Settings ......................................................................... 263
13.12. DHCPServer Settings ........................................................................ 264
13.13. IPsec Settings ................................................................................... 265
13.14. Transparent Mode Settings ................................................................. 267
13.15. Logging Settings ............................................................................... 269
13.16. High Availability Settings .................................................................. 270
13.17. Time Synchronization Settings ............................................................ 271
13.18. DNS Client Settings .......................................................................... 273
13.19. HTTP Poster Settings ........................................................................ 274
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User Manual