Troubleshooting Commands
191
The tech-support command does not allow you to scroll through it on
the router because of the enormous amount of information that is displayed.
To capture the output, you need a terminal with a large line buffer setting,
or you can log the output directly to a terminal.
show access-lists
The show access-lists command is useful to view the access-list configuration
without sorting through the running or start-up configuration. In addition to dis-
playing the line entries of the access-list, the command uses the access-list number
to define what type of access-list is being displayed. The output from the show
access-lists
command follows:
Router_B#show access-lists
Extended IP access-list 105
permit ip 172.16.0.0 0.0.255.255 any (97160 matches)
permit ip 10.0.0.0 0.255.255.255 any
deny ip any any (102463 matches)
Novell access-list 801
permit 606E3000 (3245 matches)
permit 506E3074
permit B06F2E00 (655 matches)
permit D06F2EFE
permit 717B012C
permit E06F2E67
permit F9BE0714 (5038 matches)
permit A054AB00
permit 617B07C4
permit 017B1900
This information gives you a summary of each access-list on the router.
The access-list type is defined and the number assigned to it is shown. Each
line of the list is displayed individually. The list also specifies which network
is matched by using which wildcard mask.
show memory
This command is helpful for diagnosing memory problems such as allocation
failures, free memory, and so on. From the following output, you can see
that the first field has the memory divided between processor memory and
fast memory. The fields are self-explanatory because they describe the total,
used, and free amounts of memory.
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