cisco 3800 router ACL

[calvin.wen]

I have a question about ACLs on Cisco 3800 router. I tried to configure extended IP access-list. However, I couldn't add more rules into some of the ACLs when the number of rules increase to about 120 rules. These extended IP access-lists are assigned to gigabit ethernet interface and sub-interface (VLAN interface).

Please advise on the problem here. Is this caused by some kind of maximum number of rules supported?

Thanks a lot for any help.

[acampbell]

Calvin,

Looking at several versions of IOS security Config guides from 12.2 to 15.1

Example

http://www.cisco.com/en/US/docs/ios/12_2/security/configuration/guide/scfabout.html

The same paragraph is always seen

"For a single access list, you can define multiple criteria in multiple, separate access list statements. Each of these statements should reference the same identifying name or number, to tie the statements to the same access list. You can have as many criteria statements as you want, limited only by the available memory. Of course, the more statements you have, the more difficult it will be to comprehend and manage your access lists."

Regards,
Alex.
Please rate useful posts.

[calvin.wen]

Alex,

Thanks for your reply.

I did a show memory and got this:

show memory

                     Head         Total(b)          Used(b)     Free(b)        Lowest(b)    Largest(b)

Processor   62875F00   189309184    24733008   164576176   163573556   159716520

      I/O        2DD00000   36699648    10452224    26247424    26081376     25973884

Based on the output above, it should not be available memory's issue, right?

Regards,

Calvin

[calvin.wen]

Is there any possible reasons for this issue other than available memory?

Thanks a lot for any suggestion.