Solved

Sonicwall TZ215 max connections

Posted on 2014-01-14
7
1,517 Views
Last Modified: 2014-01-18
First, I’m not a firewall expert. For the past couple days, our Sonicwall TZ215 will start to fill up and max out the connections causing lots of problems. No internet access, unable to connect to other network devices, etc. The max is 24000.
It’s like the device is under attack. The logs don’t seem to show anything. It could be something from the inside for all I know. Where’s the best place on the firewall to look to resolve this? I have to end up bouncing it to clear the connections.
0
Comment
Question by:CTmountainbiker
[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
  • 2
7 Comments
 
LVL 11

Expert Comment

by:Miftaul
ID: 39779697
Please go system, status page.
It will show number of active sessions, max session opened, and maximum supported.Sonicwall
0
 

Author Comment

by:CTmountainbiker
ID: 39779741
See attached
CaptureSW.JPG
0
 
LVL 11

Expert Comment

by:Miftaul
ID: 39779809
In 54min the device is up, its too many tcp connections.

Are you doing content filtering, if not, please enable and stop unproductive traffic. You might need to upgrade to higher end device.

Have you checked the hosts for virus/malwares.

Can you update the firmware to 5.9.
0
Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.

 

Author Comment

by:CTmountainbiker
ID: 39780110
We do have content filtering enabled. Also, every workstation is running an up-to-date version of anti virus. How do you quantify the connections? Is there a way to determine what constitutes them?
0
 
LVL 25

Accepted Solution

by:
Diverse IT earned 500 total points
ID: 39782485
Hi CTmountainbiker,

Yes, you can see all the connections running currently in the Connection Monitor (System > Diagnostics > Diagnostic Tool: Connection Monitor).

Let me know if you have any other questions!
0
 

Author Comment

by:CTmountainbiker
ID: 39782713
Very good! thank you
0
 
LVL 25

Expert Comment

by:Diverse IT
ID: 39790583
Glad I could help and thanks for the points!
0

Featured Post

Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Network bogged down - slowing down some client PCs 10 41
VLAN 1 Line Protocol Down 9 42
WDS can't PXE boot 3 38
Tool to test the firewall  protection 9 40
If you're not part of the solution, you're part of the problem.   Tips on how to secure IoT devices, even the dumbest ones, so they can't be used as part of a DDoS botnet.  Use PRTG Network Monitor as one of the building blocks, to detect unusual…
PRTG Network Monitor lets you monitor your bandwidth usage, so you know who is using up your bandwidth, and what they're using it for.
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…
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…

726 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