Results 1 to 8 of 8
  1. #1
    Join Date
    Mar 2008

    Private network IP block in the Data Center

    Is their any threat or possible problems in using a common private subnet in the data center which will be used for internal communications (Backup Network, etc.) connected to a private internal network.

    Example if we use a block such as 10.10.10.x/24 or 192.168.0.x/24 which has a high possibility of being used on many clients LAN's or should we use something totally obscure such as 10.12.15.x/24 or is this not even an issue and simply using anything which is labeled for private use in the RFC's fine ?


  2. #2
    Join Date
    Oct 2001
    As long as you are not sharing these block the answer would be no, there should be any problem in using 192.168.x.x or 10.10.x.x IP address. Although many people may use these block, they will not be visible once a packet reach public/static IP.
    <<< Please see Forum Guidelines for signature setup. >>>

  3. #3
    Join Date
    Jun 2004
    Hyderabad India
    As long as the connecting switches are isolated for this purpose and use a second nic in case it is backup network then this has no impact even if someone else using exactly same.

    people with firewall use private ip's even in primary nic where the public ip is translated at the firewall

  4. #4
    Join Date
    Mar 2008
    Thank you for the clarification, and just as I thought.

  5. #5
    Join Date
    Apr 2009
    Dallas/FortWorth TX
    or even a Vlan would be good i guess or behind a firewall
    IPStrada When uptime counts.
    Warren Buffet: Honesty is very expensive gift do not expect it from cheap people.

  6. #6
    Join Date
    Mar 2009
    Austin Tx
    I agree, to make sure you don't accidentally use another block a someone else may be using, create an assign a VLAN (or request it) on your switch port(s).
    This is the best signature in the world....Tribute!
    (It is not the best signature in the world, no. This is just a tribute)

  7. #7
    Join Date
    Jul 2008
    New Zealand
    Yep, It shouldn't matter. Although like mugo said, I'd use a VLAN.

  8. #8
    Quote Originally Posted by mugo View Post
    I agree, to make sure you don't accidentally use another block a someone else may be using, create an assign a VLAN (or request it) on your switch port(s).
    Especially if you're planning on using multiple nics, sharing a broadcast domain can end up with strange arp issues.

    If you don't make a vlan you probably want to pay attention to:

    net.ipv4.conf.all.arp_ignore / net.ipv4.conf.all.arp_announce on linux (and most other OS's have a similar knob) if you want to isolate traffic to specific nics w/o setting up a vlan.

Similar Threads

  1. What kind of prices are you looking at for private data center space?
    By Brandito520 in forum Colocation and Data Centers
    Replies: 3
    Last Post: 06-30-2008, 06:24 PM
  2. Colo Private Data center in LaFayette,GA
    By ellery in forum Colo Hosting Offers
    Replies: 5
    Last Post: 03-14-2007, 10:17 PM
  3. Data Center Network Down?
    By in forum Dedicated Server
    Replies: 3
    Last Post: 09-09-2005, 04:24 AM
  4. Data Center or Private Room
    By Ophelus in forum Colocation and Data Centers
    Replies: 7
    Last Post: 02-17-2005, 03:06 PM
  5. Small Co-Lo Available in Private Data Center
    By Rip in forum Dedicated Hosting Offers
    Replies: 0
    Last Post: 06-23-2004, 10:29 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts