D-Link DFL-2500 - Manual (Page 5)

3.4.3. ARP Cache .................................................................................68
3.4.4. Static and Published ARP Entries ....................................................69
3.4.5. Advanced ARP Settings ................................................................71
3.5. The IP Rule Set ......................................................................................73
3.5.1. Security Policies ..........................................................................73
3.5.2. IP Rule Evaluation .......................................................................74
3.5.3. IP Rule Actions ...........................................................................75
3.5.4. Editing IP rule set Entries ..............................................................76
3.6. Schedules .............................................................................................77
3.7. X.509 Certificates ..................................................................................79
3.7.1. Overview ...................................................................................79
3.7.2. X.509 Certificates in NetDefendOS .................................................80
3.8. Setting Date and Time .............................................................................82
3.8.1. General Date and Time Settings ......................................................82
3.8.2. Time Servers ..............................................................................83
3.9. DNS Lookup .........................................................................................87
4. Routing ...........................................................................................................89
4.1. Overview ..............................................................................................89
4.2. Static Routing ........................................................................................90
4.2.1. Basic Principles of Routing ............................................................90
4.2.2. Static Routing .............................................................................91
4.2.3. Route Failover ............................................................................94
4.2.4. Proxy ARP .................................................................................96
4.3. Policy-based Routing ..............................................................................98
4.3.1. Overview ...................................................................................98
4.3.2. Policy-based Routing Tables ..........................................................98
4.3.3. Policy-based Routing Rules ...........................................................98
4.3.4. Policy-based Routing Table Selection ..............................................99
4.3.5. The Ordering parameter ................................................................99
4.4. Dynamic Routing ................................................................................. 103
4.4.1. Dynamic Routing overview ......................................................... 103
4.4.2. OSPF ...................................................................................... 104
4.4.3. Dynamic Routing Policy ............................................................. 107
4.5. Multicast Routing ................................................................................. 110
4.5.1. Overview ................................................................................. 110
4.5.2. Multicast Forwarding using the SAT Multiplex Rule ........................ 110
4.5.3. IGMP Configuration .................................................................. 114
4.6. Transparent Mode ................................................................................ 119
4.6.1. Overview of Transparent Mode .................................................... 119
4.6.2. Comparison with Routing mode ................................................... 119
4.6.3. Transparent Mode Implementation ................................................ 119
4.6.4. Enabling Transparent Mode ......................................................... 120
4.6.5. High Availability with Transparent Mode ....................................... 120
4.6.6. Transparent Mode Scenarios ........................................................ 120
5. DHCP Services .............................................................................................. 127
5.1. Overview ............................................................................................ 127
5.2. DHCP Servers ..................................................................................... 128
5.3. Static DHCP Assignment ....................................................................... 130
5.4. DHCP Relaying ................................................................................... 131
5.5. IP Pools .............................................................................................. 132
6. Security Mechanisms ....................................................................................... 135
6.1. Access Rules ....................................................................................... 135
6.1.1. Introduction .............................................................................. 135
6.1.2. IP spoofing ............................................................................... 135
6.1.3. Access Rule Settings .................................................................. 136
6.2. Application Layer Gateways ................................................................... 138
6.2.1. Overview ................................................................................. 138
6.2.2. HTTP ...................................................................................... 139
6.2.3. FTP ......................................................................................... 140
6.2.4. TFTP ....................................................................................... 145
6.2.5. SMTP ...................................................................................... 146
6.2.6. POP3 ....................................................................................... 151
6.2.7. SIP .......................................................................................... 152
User Manual
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