Solved

2 networ adapters, 2 gateways

Posted on 2013-06-02
6
300 Views
Last Modified: 2013-06-07
Dear experts,

I have 2 servers connected to internet. Besides internet conectivity, there is another network adapter in each server. I need to set cross backup through that additional network adapters.

Example:

server-1 (internet connection)
IP: 192.168.0.2/24
GW: 192.168.0.1

server-2 (internet connection)
IP: 10.0.0.2/24
GW: 10.0.0.1

server-1 (cross backup connection)
IP: 192.168.254.1/24
GW: 192.168.254.1

server-2 (cross backup connection)
IP: 192.168.254.2/24
GW: 192.168.254.1

There is a cable directly connected to both "cross backup adapters", no switch.


My questions are:
1, is it supported scenario?
2, do I need to run route add command?
3, are there any disadvantages


Regards,
Jarda
0
Comment
Question by:JardaCZ
6 Comments
 
LVL 15

Expert Comment

by:Phonebuff
ID: 39214356
If anything works I would be amazed based on your description.

I would suggest that you go to the pfSense Firewall site and read through the documentation on fail over and redundancy support,   www.pfsense.org 

------------------------
0
 
LVL 10

Accepted Solution

by:
bigbigpig earned 500 total points
ID: 39214389
That should work, just make sure you use a crossover cable, not a standard straight through cable, to connect them to each other.  You also don't need to define a gateway if the 2 NICs are connected directly to each other.
0
 
LVL 25

Expert Comment

by:Tony Giangreco
ID: 39214493
We have six servers, two ISP's and a Sonicwall TZ210 which handles all traffic from both web connections. I suggest setting this up with the firewall and not having Windows do it. We tried this before and could not keep it stable. From our experience, Windows is not well suited to handle this in a stable manner on a long term stable.
0
What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

 
LVL 7

Author Comment

by:JardaCZ
ID: 39218679
Hi,

Sorry about late response, we have a little flood here in Prague.

TG-TIS: What kind of unstability do you mean? We do not want to spend extra money if not necesstary.

bigbigpig: Thanks! We do not have crossover cable and it works in our "lab". Maybe newer functionality of our NIC. Do you use this scenario somewhere? Some complications?

PhonebuffPosted: Amazed? Do you have any real experience with this? :)


Regards,
Jarda
0
 
LVL 15

Expert Comment

by:Phonebuff
ID: 39218762
I guess,

    Redundant Firewalls, with redundant Switches with 9 servers with Dual NICS in a Colocation facility rack and zero down time in five years.

    Most NICs and the switch technology these days are auto sensing so no you don't need a cross over cable..

    But you need to do some reading on Load balancing and redundant links.   Again there is good information on the net at pfSense.org and other open source firewall products sites.
0
 
LVL 7

Author Closing Comment

by:JardaCZ
ID: 39229953
I tried this and it works with no GW defined. The only problem is slower printing. I hope nothing else will appears.

regards,
Jarda
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

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

Suggested Solutions

The Need In an Active Directory enviroment, the PDC emulator provide time synchronization for the domain. This is important since Active Directory uses Kerberos for authentication.  By default, if the time difference between systems is off by more …
Many of us in IT utilize a combination of roaming profiles and folder redirection to ensure user information carries over from one workstation to another; in my environment, it was to enable virtualization without needing a separate desktop for each…
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're interested in additional methods for monitoring bandwidt…

863 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

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now