Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 484
  • Last Modified:

VPN Client stops communicating frequently

Dear Experts,

I have an Cisco ASA 5540 Firewall and its configured with Remote Access VPN. Remote client uses Cisco VPN client

I am facing an weird issue.

One of the client have an access to specific server and I have lock down with ACL to access only this server.

The VPN client suddenly stops communicating with server. I cannot ping.

After my troubleshooting I have discovered, when the VPN client receives the same IP address from ASA such as 192.168.1.1..it will not work

When I changed to 192.168.1.2..it will for sometime then stops. Again I need to change the IP to 192.168.1.3 and so.

Having said that, I can ping to other servers ( by changing the ACL) but cannot ping to this server.

The server Oracle Linux

I would highly appreciate any help.

Thanks
0
cciedreamer
Asked:
cciedreamer
  • 4
  • 3
1 Solution
 
Marius GunnerudSenior Systems EngineerCommented:
I have seen something similar when the VPN pool was used up, then random VPN clients would have connectivity one minute and the next they would be kicked out.

Does this only happen with the one server? or can you reproduce the issue with other servers? Is it just from the one client or is it all clients that connect to that one server?  How long do you have connectivity before you lose it? is it the same length of time each time?

Also, if possible, could you post a full sanitised running configuration? there might be a configuration issue with the ASA also.
0
 
cciedreamerAuthor Commented:
Thanks.

Its happening only with this server and the time varies for disconnection may 10-15,1 hour, 2 hour or 1 day.
0
 
cciedreamerAuthor Commented:
The VPN client doesn't get disconnect it just pinging to the server and eventually no access.

Thanks
0
Restore individual SQL databases with ease

Veeam Explorer for Microsoft SQL Server delivers an easy-to-use, wizard-driven interface for restoring your databases from a backup. No expert SQL background required. Web interface provides a complete view of all available SQL databases to simplify the recovery of lost database

 
Marius GunnerudSenior Systems EngineerCommented:
Is it just from the one client or is it all clients that connect to that one server?
0
 
cciedreamerAuthor Commented:
Its happening with all clients connecting to this server.

Thanks
0
 
Marius GunnerudSenior Systems EngineerCommented:
If it is just that one server and all clients have the same issue but not with other servers, then (without seeing your ASA configuration) I would say there is an issue with that particular server.
0
 
cciedreamerAuthor Commented:
The issue was with the server configuration.

Thanks for the help
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.

  • 4
  • 3
Tackle projects and never again get stuck behind a technical roadblock.
Join Now