Solved

cisco asa 5505 deny it's own ip due to land attack

Posted on 2010-11-29
12
3,243 Views
Last Modified: 2012-08-14
I couldn't connect Mysql server today. And after checking my firewall: Cisco ASA 5505, I found the following log:

"Deny IP due to Land Attack from 72.166.258.188 to 72.166.258.188"

And the ip is the outside ip of the Firewall.

Anyone can help with that?

Thanks.
0
Comment
Question by:rxzang
  • 8
  • 4
12 Comments
 
LVL 28

Expert Comment

by:Jan Springer
ID: 34240264
http://www.cisco.com/en/US/products/ps6120/products_tech_note09186a00809763ea.shtml

---------------------------------------------------------------------------------------------------------------------------------------------------------------
%PIX|ASA-2-106017: Deny IP due to Land Attack from IP_address to
    IP_address

Explanation

The security appliance received a packet with the IP source address equal to the IP destination, and the destination port equal to the source port. This message indicates a spoofed packet that is designed to attack systems. This attack is referred to as a Land Attack.

Recommended Action: If this message persists, an attack might be in progress. The packet does not provide enough information to determine where the attack originates.
0
 

Author Comment

by:rxzang
ID: 34242622
But the problem is, I cannot connect mysql with the Firewall's outside IP.

I got the following in logs:

No translation group found for tcp src inside:10.0.0.1/51700 dst outside:72.166.258.188/3306
Deny IP due to Land Attack from 72.166.258.188 to 72.166.258.188
0
 
LVL 28

Assisted Solution

by:Jan Springer
Jan Springer earned 500 total points
ID: 34243176
Are you trying to connect to the sql server from behind the ASA on the 10 network using its public IP?
0
 

Author Comment

by:rxzang
ID: 34243398
Exactly. Actually, I have another server with the same configuration. It can connect mysql through its public IP. But this one cannot.
0
 
LVL 28

Expert Comment

by:Jan Springer
ID: 34243478
Are you accessing it via its IP or its fully qualified domain name?
0
 

Author Comment

by:rxzang
ID: 34243605
IP.
0
6 Surprising Benefits of Threat Intelligence

All sorts of threat intelligence is available on the web. Intelligence you can learn from, and use to anticipate and prepare for future attacks.

 

Author Comment

by:rxzang
ID: 34243639
I can connect mysql with sqlyog. But I cannot connect with php connect function in a web page in this IP.
0
 

Author Comment

by:rxzang
ID: 34243653
And also, I can connect mysql with php connect function in a web page in other IP.
0
 

Author Comment

by:rxzang
ID: 34243753
I have another server with the same configuration, it works. And I found there is some difference:

On this server: Firewall IP: 173.201.176.21 Public IP: 72.166.258.188

On the other server: FIrewall IP: 184.164.158.230 Public IP: 184.164.158.228

The working server has IPs in the same range.

0
 
LVL 28

Expert Comment

by:Jan Springer
ID: 34248513
On which interfaces on what devices do the firewall and public IPs reside?
0
 

Accepted Solution

by:
rxzang earned 0 total points
ID: 34253828
I got it solved. I should use localhost instead of firewall's public IP to connect mysql. But I don't know why the other server works.
0
 

Author Closing Comment

by:rxzang
ID: 34281208
solved
0

Featured Post

How to run any project with ease

Manage projects of all sizes how you want. Great for personal to-do lists, project milestones, team priorities and launch plans.
- Combine task lists, docs, spreadsheets, and chat in one
- View and edit from mobile/offline
- Cut down on emails

Join & Write a Comment

Overview The Cisco PIX 501, PIX 506e, ASA 5505 and ASA 5510 (most if not all of this information will be relevant to the PIX 515e but I do not have a working configuration handy to verify the validity) are primarily used within small to medium busi…
From Cisco ASA version 8.3, the Network Address Translation (NAT) configuration has been completely redesigned and it may be helpful to have the syntax configuration for both at a glance. You may as well want to read official Cisco published AS…
Illustrator's Shape Builder tool will let you combine shapes visually and interactively. This video shows the Mac version, but the tool works the same way in Windows. To follow along with this video, you can draw your own shapes or download the file…
This tutorial demonstrates a quick way of adding group price to multiple Magento products.

746 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

9 Experts available now in Live!

Get 1:1 Help Now