Troubleshooting - D-Link NetDefend SOHO DFL-160 User Manual

Chapter 9. Troubleshooting
When the DFL-160 does not behave as expected, the following CLI tools are available to
troubleshoot problems.
The stat CLI Command
If a serious NetDefendOS problem is suspected then the first step should be to use the console
command:
> stat
The stat command will indicate the date and time of the last system shutdown and can indicate if
there has been a serious error in NetDefendOS operation. It should be remembered however that the
buffer which stat uses is cleared by certain operations such a reconfigure and the output will not
therefore show what occurred prior to buffer clearance.
The dconsole CLI Command
The next step if to use the console command:
> dconsole
This can be abbreviated to:
> dcon
The dconsole command provides a list of important events in NetDefendOS operation and can help
to establish the date, time and nature of events leading up to a serious problem occurring. The output
might look similar like the following:
Showing diagnose entries since 2008-05-22:
2008-06-21 11:54:58
2008-06-21 11:56:16
2008-06-21 11:56:21
2008-06-21 11:57:29
2008-06-21 11:59:31
2008-06-21 11:59:49
'
'
dconsole output above may include a dump of the system memory in the case of serious runtime
errors. This will look similar like the following:
'
'
Reason: Exception 'DataAbort' occurred at address 0x7aaea34
Generation date/time: 2008-07-04 14:23:56 List of loaded PE-modules:
fwloader(1.07.04): BA:0x00100000, EP:0x00101028, SS:0x0, IS:0xe7000
fwcore(82.27.00-2336): BA:0x07761038, EP:0x0007c630 Register dump:
----------------------------------------------------
r0 : 0xe1a0003c, r1 : 0x07c685dc, r2 : 0x00000004, r3 : 0x50013700,
r4 : 0x06cb2d04, r5 : 0x0753a740, r6 : 0x050ce1f8, r7 : 0x00000000,
r8 : 0x0753a79c, r9 : 0x050ce1f8, r10: 0x00000000, r11: 0x0775ff34,
r12: 0x00000004, sp : 0x0775fcec, lr : 0x079de7e4 Stack dump:
5da89306 c33613f4 c330cfc5 04411507 45515a49 86619f8b c0db0a81
4e395861 cb25b796 e3108934 932766c5 4dcff9e9 711c3463 b9cd5d1e
52149961 9324dea3 d340dc25 15458610 63582ded 689a0c54 dfb43131
02c7d971 a0ebb72c bfaae832 db216923 08ba693b 95e4de97 98d121a2
Start (2.27.00-0:131)
Stop (RECONFIGURE)
Start (2.27.00-0:131)
Stop (RECONFIGURE)
Start (2.27.00-0:131)
Stop (NORMAL)
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