Solved

VPN load balancing on Cisco router

Posted on 2007-03-28
4
326 Views
Last Modified: 2010-04-17
Hi

I have a 2800 series router at a remote location with 2 WIC's. The ISP has provided me with 2 T1 lines but will not bundle them (they have 2 different IP subnets. I need to establish a site-to-site VPN to the main location. Is there a way I can load balance traffic between 2 VPN tunnels?
0
Comment
Question by:netman70
[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
4 Comments
 
LVL 11

Accepted Solution

by:
billwharton earned 500 total points
ID: 18812484
Yes, you'll need a crypto map configured on each interface and establish a VPN tunnel through each interface. Thereafter, you can set up your routes to the remote network through both interfaces and this do the load-balancing. Not a very graceful solution though
0
 

Author Comment

by:netman70
ID: 18812672
Once Crypto maps have been configured for each interface, how would I load balance traffic  through the 2 tunnels? How would I configure routing statements for VPN traffic? Am I looking at problems with out-of-sequence packets?

0
 
LVL 11

Expert Comment

by:billwharton
ID: 18812776
your best bet would to break up the remote network into two subnets and route each subnet over different routes.
So if you have a 10.1.1.0/24 network, break it into 10.1.1.0/25 giving you two subnets:
10.1.1.1 - 10.1.1.127 &
10.1.1.128 - 10.1.1.254

Then establish two routes for each outgoing interface and put in both the above networks on the routes but with different metrics. For routing, all you have to do is put in:
ip route <remote LAN subnet> <remote LAN subnet mask> <gateway which will be ISP's router>

This is a kind of a solution that has to be tried to see how it works. Cisco doesn't have any config examples for this
0
 
LVL 11

Expert Comment

by:billwharton
ID: 18854130
Did that work out well for you?
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

I've written this article to illustrate how we can implement a Dynamic Multipoint VPN (DMVPN) with both hub and spokes having a dynamically assigned non-broadcast multiple-access (NBMA) network IP (public IP). Here is the basic setup of DMVPN Pha…
I recently attended Cisco Live! in Las Vegas, a conference that boasted over 28,000 techies in attendance, and a week of hands-on learning hosted by a solid partner with which Concerto goes to market.  Every year, Cisco displays cutting-edge technol…
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…
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…
Suggested Courses
Course of the Month11 days, 1 hour left to enroll

631 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