Solved

Cisco VPN Tunnels

Posted on 2009-04-02
9
442 Views
Last Modified: 2012-05-06
Hi experts,
Our ISP is planning an downtime of a core switch and we have about 14 remote locations that will loose VPN tunnels due to this outage. When the site comes back up, will the remove locations reestablish the vpn tunnels dynamically?

Let me know if you need more information.

Thanks,
Marek
0
Comment
Question by:maredzki
[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
  • 4
  • 4
9 Comments
 
LVL 43

Accepted Solution

by:
JFrederick29 earned 250 total points
ID: 24050611
They will re-establish when "interesting traffic" attempts to traverse the tunnel.  You don't need to manually bring up the tunnels.
0
 
LVL 20

Expert Comment

by:RPPreacher
ID: 24050616
Yes, as soon as they receive "interesting traffic".  Tunnels stay down until needed.
0
 
LVL 2

Author Comment

by:maredzki
ID: 24052333
Will ICMP packets from our monitoring be considered "interesting traffic"?
0
Simple, centralized multimedia control

Watch and learn to see how ATEN provided an easy and effective way for three jointly-owned pubs to control the 60 televisions located across their three venues utilizing the ATEN Control System, Modular Matrix Switch and HDBaseT extenders.

 
LVL 43

Expert Comment

by:JFrederick29
ID: 24052337
Sure as long as it falls within the interesting traffic rules.
0
 
LVL 2

Author Comment

by:maredzki
ID: 24053069
How would I know, of find that?
0
 
LVL 43

Expert Comment

by:JFrederick29
ID: 24053088
Here is a simple way.  What IP are you monitoring? The "inside" or LAN interface IP of the remote VPN device or the "outside" WAN/Public IP of the remote device?  If the inside, it's going over the tunnel.
0
 
LVL 2

Author Comment

by:maredzki
ID: 24053115
I am actually monitoring the public IP address and some of the devices behind that using non routable IPs.
0
 
LVL 43

Expert Comment

by:JFrederick29
ID: 24053137
Okay, well if monitoring non routable IP's behind it, it is going over the tunnel.
0
 
LVL 2

Author Closing Comment

by:maredzki
ID: 31565826
Thanks for the good info. Ultimately we will find out Tuesday morning after the work will finish.

Thanks!
Marek
0

Featured Post

Save the day with this special offer from ATEN!

Save 30% on the CV211 using promo code EXPERTS30 now through April 30th. The ATEN CV211 connects a laptop directly to any server allowing you instant access to perform data maintenance and local operations, for quick troubleshooting, updating, service and repair.

Question has a verified solution.

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

Suggested Solutions

If you have an ASA5510 then this sort of thing would be better handled with a CSC Module, however on an ASA5505 thats not an option, and if you want to throw in a quick solution to stop your staff going to facebook during work time, then this is the…
When speed and performance are vital to revenue, companies must have complete confidence in their cloud environment.
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 …

751 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