User`s manual

Restoring system settings to factory defaults ........................................................................................... 90
Restarting the DFL-500 ............................................................................................................................ 92
Shutting down the DFL-500 ...................................................................................................................... 92
System status monitor .............................................................................................................................. 92
Network configuration ................................................................................................................................... 93
Changing IP addresses ............................................................................................................................ 93
Configuring the external interface for DHCP ............................................................................................ 93
Configuring the external interface for PPPoE........................................................................................... 93
Changing MTU size to improve network performance ............................................................................. 94
Setting DNS server addresses ................................................................................................................. 94
Controlling management access to the DFL-500 ..................................................................................... 94
Configuring routing ................................................................................................................................... 95
Enabling RIP server support..................................................................................................................... 95
Providing DHCP services to your internal network................................................................................... 96
System configuration .................................................................................................................................... 97
Setting system date and time ................................................................................................................... 97
Changing web-based manager options.................................................................................................... 98
Adding and editing administrator accounts............................................................................................... 98
Configuring SNMP .................................................................................................................................. 100
Using the DFL-500 CLI ............................................................................... 101
Connecting to the DFL-500 CLI .................................................................................................................. 101
Connecting to the DFL-500 communications port .................................................................................. 101
Connecting to the DFL-500 CLI using SSH............................................................................................ 102
CLI basics ................................................................................................................................................... 102
Recalling commands .............................................................................................................................. 103
Editing commands .................................................................................................................................. 103
Using command shortcuts ...................................................................................................................... 103
Using command help .............................................................................................................................. 103
Installing firmware from a TFTP server....................................................................................................... 103
Glossary ...................................................................................................... 106
Troubleshooting FAQs .............................................................................. 109
General administration................................................................................................................................ 109
Network configuration ................................................................................................................................. 109
Firewall policies........................................................................................................................................... 109
Schedules ................................................................................................................................................... 110
VPN............................................................................................................................................................. 110
Virus protection ........................................................................................................................................... 111
Web content filtering ................................................................................................................................... 111
Logging ....................................................................................................................................................... 111
Technical Support ...................................................................................... 112
DFL-500 User’s Manual
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