Solved

ACL's in Cisco 5520 Firewall

Posted on 2011-09-02
5
926 Views
Last Modified: 2013-12-07
Hi

We have nearly 58K ACL lines in our ASA i want to remove unnecessary all ACL's from firewall is there any best way to monitor these ACLs and remove....??

what is the limit of ACL's in ASA 5520 (ver 8.2)

Thanks in advance  
0
Comment
Question by:amitabhg
  • 2
  • 2
5 Comments
 
LVL 18

Accepted Solution

by:
fgasimzade earned 167 total points
ID: 36472669
You can check on hit counters to see if any of the lines are inactive.

I dont think there is a limit for access-lists lines, but you can also check CPU, since access-lists are CPU intensive
0
 
LVL 35

Assisted Solution

by:Ernie Beek
Ernie Beek earned 333 total points
ID: 36472676
There is no hard limit to the number of ACL's or ACE's in an ASA. It depends on the amount of memory to hold them and the CPU capacity to process them. If these are used to the max the firewall might start to get issues like dropping packets.

So you would like to monitor the rules to see how often they get hit? With show access-list you get to see the hitcount per ACE.
0
 

Author Comment

by:amitabhg
ID: 36473679
apart from seeing hit count is there any other way to monitor ACL's.
0
 
LVL 35

Assisted Solution

by:Ernie Beek
Ernie Beek earned 333 total points
ID: 36473721
Well, in the newer ASDMs versions you can also see the hitcount. I'm stall assuming that is what you want to monitor.
0
 

Author Comment

by:amitabhg
ID: 36487619
TanQ erniebeek.
0

Featured Post

What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Introduction This article explores the design of a cache system that can improve the performance of a web site or web application.  The assumption is that the web site has many more “read” operations than “write” operations (this is commonly the ca…
Creating an OSPF network that automatically (dynamically) reroutes network traffic over other connections to prevent network downtime.
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
Both in life and business – not all partnerships are created equal. Spend 30 short minutes with us to learn:   • Key questions to ask when considering a partnership to accelerate your business into the cloud • Pitfalls and mistakes other partners…

896 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now