Solved

Why my network gears respond to my portscan for some non-existing IP addresses

Posted on 2011-09-15
6
219 Views
Last Modified: 2012-08-14
Hi,

When I use port scan software to scan some non-existing IP addresses, e.g. 10.22.22.22, 10.33.33.33 etc, in my company's network, I get following responses:
port 80 is open
port 25 is open

When I do the same scan at home I have different results: nothing is open.

My questions are:
1.) Why I have some ports opend on some non-existing IP address?
2.) Is it possible something is wrong with the code /software on Huawei network gears?
3.) Is there any other possiblity other than Huawei gear?

Any information and help would be much appreciated.

Thanks

Regards

John
0
Comment
Question by:mbsadmin1
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
6 Comments
 
LVL 3

Expert Comment

by:inetman
ID: 36546964
Have you tried upgraded firmware on the routers?
0
 
LVL 22

Expert Comment

by:eeRoot
ID: 36547246
There may be one or more devices on your network that have factory default IP's and factory default open ports.  Or maybe these settings are left over from an old config.  Ports 80 & 25 are web and SMTP,  If you type http://10.22.22.22 into a web browser, does a web page load?
0
 

Author Comment

by:mbsadmin1
ID: 36557923
http://10.22.22.22 into a web browser, doesn't load a web page .

Thanks

John
0
MIM Survival Guide for Service Desk Managers

Major incidents can send mastered service desk processes into disorder. Systems and tools produce the data needed to resolve these incidents, but your challenge is getting that information to the right people fast. Check out the Survival Guide and begin bringing order to chaos.

 
LVL 22

Expert Comment

by:eeRoot
ID: 36558148
Are you able to associate MAC addresses with these IP's?
0
 

Accepted Solution

by:
mbsadmin1 earned 0 total points
ID: 37093202
Thanks all, it turns out port 80 was open on the edge switch.

Thanks for your help.
0
 

Author Closing Comment

by:mbsadmin1
ID: 37166548
Thanks everyone's help.
0

Featured Post

Windows Server 2016: All you need to know

Learn about Hyper-V features that increase functionality and usability of Microsoft Windows Server 2016. Also, throughout this eBook, you’ll find some basic PowerShell examples that will help you leverage the scripts in your environments!

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Classlful vs Classless subneting 18 82
Cisco IOS cempMemBufferPeak  notification SNMP 5 84
Unidentified Network 12 77
How to change subnet mask for Fortigate WAN interface 2 72
This tutorial will go through the steps required to write a script that will back up the configuration settings of a HP-ProCurve switch. You will need to get the following things to follow this tutorial: Telnet Scripting Tool e.g. TST10.exe …
I eventually solved a perplexing problem setting up telnet for a new switch.  I installed a new Cisco WS-03560X-24P switch connected to an existing Cisco 4506 running a WS-X4013-10GE Sup II-Plus. After configuring vlans and trunking,  I could no…
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're looking for how to monitor bandwidth using netflow or packet s…

738 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