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

x
?
Solved

Internet link load balancing

Posted on 2006-06-22
9
Medium Priority
?
421 Views
Last Modified: 2010-03-19
Hi

We are hosting few application servers on DMZ using Cisco PIX firewall. These applications are accessed by the users from Internet. We have one 2 Mbps Internet connection for this purpose. However, due to availability issue of ISP link, we are planning to add second ISP link from different provider. please suggest any economical product available to do inbound and outbound load balancing between two ISP links

-NMG

0
Comment
Question by:nessmssit
  • 3
  • 2
  • 2
9 Comments
 
LVL 77

Accepted Solution

by:
Rob Williams earned 500 total points
ID: 16963232
The Linksys RV042 works very well for this. It will allow you to have 2 independent WAN/Internet connections and automatically balance the network requests over the 2 connections. In the event of a failure it will automatically force all traffic to the working connection. They tend to run about $150-$200 US
http://www.linksys.com/servlet/Satellite?c=L_Product_C2&childpagename=US%2FLayout&cid=1123638171618&pagename=Linksys%2FCommon%2FVisitorWrapper
Support for this product would also be through Cisco's Linksys division.
0
 
LVL 3

Assisted Solution

by:papimichel
papimichel earned 500 total points
ID: 16963674
i'm not sure i understood you..
those DMZ servers have valid IP addresses.. right ?
how are those addresses are routed to you ? do you use DSL/Frame relay connection ?
if you do, the suggestion above is not good for you, but anyway be more specific about the use of those servers.. there might be another way to give you better redundancy.

anyway, i don't think there's a way to have the kind of load-balancing that you mentioned..
0
 
LVL 77

Expert Comment

by:Rob Williams
ID: 16963906
Good point papimichel, if users are to connect from the outside, names can only resolve to one IP.
0
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 

Author Comment

by:nessmssit
ID: 16969633
Hi Papimichel ,

The servers that we have hosted in DMZ has a private IP addressess which are natted to the Public IP ones given by the Internet Service Provider . The Natting is done on the Cisco-Pix Firewall .We have an internet leased line connection for the internet and the same is terminated on a Cisco ISP Edge router.


Regards
NMG


0
 

Author Comment

by:nessmssit
ID: 16969711
Hi Rob will,

I have a query regarding two independent ISP connections.

How will the failover happens when the users URL is resolved (by the DNS ) into an public IP of the Internet Link-01 and after that the internet link fails

With Regards
NMG
0
 
LVL 77

Expert Comment

by:Rob Williams
ID: 16969844
>>"How will the failover happens "
It won't. That is why I mentioned papimichel, had a good point. It is an ideal solution for "inside" users but will not resolve the problem for those on the outside of the firewall. Sorry, I know of no solution that will work in this situation.
0
 
LVL 3

Expert Comment

by:papimichel
ID: 16973209
in order to have that kind of redundancy you can do something else:
you can point your registered DNS to a dynnamic DNS address that'll map by default to one of the ISP's address. if that line fails, you'll be still online because the other ISP's line is on (that you'll have to configure on your router) thus, the dynamic DNS record'll change its map to the other ISP's ip address, and all users on the outside'll still be able to use your services with your original DNS name.

Yours,
Michel
0

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Let’s face it: one of the reasons your organization chose a SaaS solution (whether Microsoft Dynamics 365, Netsuite or SAP) is that it is subscription-based. The upkeep is done. Or so you think.
This article explains the fundamentals of industrial networking which ultimately is the backbone network which is providing communications for process devices like robots and other not so interesting stuff.
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…
Internet Business Fax to Email Made Easy - With  eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, f…

885 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