Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

VPN Client stops communicating frequently

Posted on 2014-01-27
7
Medium Priority
?
480 Views
Last Modified: 2014-02-12
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
Comment
Question by:cciedreamer
  • 4
  • 3
7 Comments
 
LVL 17

Expert Comment

by:Marius Gunnerud
ID: 39816359
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
 
LVL 3

Author Comment

by:cciedreamer
ID: 39816939
Thanks.

Its happening only with this server and the time varies for disconnection may 10-15,1 hour, 2 hour or 1 day.
0
 
LVL 3

Author Comment

by:cciedreamer
ID: 39816951
The VPN client doesn't get disconnect it just pinging to the server and eventually no access.

Thanks
0
Choose an Exciting Career in Cybersecurity

Help prevent cyber-threats and provide solutions to safeguard our global digital economy. Earn your MS in Cybersecurity. WGU’s MSCSIA degree program was designed in collaboration with national intelligence organizations and IT industry leaders.

 
LVL 17

Expert Comment

by:Marius Gunnerud
ID: 39817556
Is it just from the one client or is it all clients that connect to that one server?
0
 
LVL 3

Author Comment

by:cciedreamer
ID: 39817584
Its happening with all clients connecting to this server.

Thanks
0
 
LVL 17

Accepted Solution

by:
Marius Gunnerud earned 2000 total points
ID: 39817586
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
 
LVL 3

Author Closing Comment

by:cciedreamer
ID: 39855381
The issue was with the server configuration.

Thanks for the help
0

Featured Post

Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

Question has a verified solution.

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

In this article, we’ll look at how to deploy ProxySQL.
Considering cloud tradeoffs and determining the right mix for your organization.
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. As the demand for cloud services increases, so do the number of self-proclaimed cloud partners. Asking the right questions up front in the partnership, will enable both parties …

916 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