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Static ARP...............................................................................................................................................55
NAT Configuration.................................................................................................................................57
Configure NAPT for Special Ap[plication]s...........................................................................................66
Telnet/Discovery Enable.........................................................................................................................69
DNS Configuration.................................................................................................................................69
RADIUS Configuration ..........................................................................................................................72
Multi-Link PPP Configuration................................................................................................................73
Admin Configuration.................................................................................................................75
System Maintenance ..................................................................................................................75
System Status..........................................................................................................................................76
Statistics..................................................................................................................................................76
Runtime Tables.......................................................................................................................................80
Log and Trace .........................................................................................................................................83
Diagnostic ...............................................................................................................................................88
Software Update......................................................................................................................................93
System Restart.........................................................................................................................................93
Factory Reset ..........................................................................................................................................94
System Settings Backup/Restore.............................................................................................................95
PROM S
YSTEM
C
ONFIGURATION
.................................................................98
System Configuration..............................................................................................................................99
TCP/IP Parameters Configuration.........................................................................................................100
System Reset.........................................................................................................................................100
Software Update....................................................................................................................................101
EEPROM Factory Reset .......................................................................................................................103
Execute Bootload..................................................................................................................................103
U
SING
T
ELNET
..........................................................................................104
Telnet Configuration................................................................................................................104
Using Telnet via LAN...........................................................................................................................104
Using Telnet via ISDN..........................................................................................................................104
System Timeout ....................................................................................................................................105
U
SING
RADIUS A
UTHENTICATION
.............................................................106
Installing a RADIUS Server.....................................................................................................106
Configuring the DI-308 for RADIUS Authentication ..............................................................106
Adding Users to the RADIUS Database ..................................................................................107
A
PPENDIX
A - T
ROUBLESHOOTING
.............................................................108
Some Common Problems with the DI-308...............................................................................108
None of the LEDs are on when you power up the router......................................................................108
Connecting the RS-232 cable, cannot access the console program.......................................................108
Problems With the ISDN Line..................................................................................................108
Problems with the LAN Interface.............................................................................................108
Can’t PING any station on the LAN.....................................................................................................108
A
PPENDIX
B - IP C
ONCEPTS
......................................................................110
IP Addresses............................................................................................................................110
IP Network Classes...............................................................................................................................110
Subnet Mask.............................................................................................................................111