Slashdot Mirror

← Back to Stories (view on slashdot.org)

Local Network IPs - 10.0.0.0/8 or 192.168.0.0/16?

Posted by Cliff on from the matters-of-personal-opinion dept.

mike9010 asks: "After reading a few articles on the net about networking, I have come up with a question. It seems that most of them say to use 192.168.0.0/16 for a local network. Why not use 10.0.0.0/8 though? It is my understanding that it can hold a lot more IP addresses, and it is also prettier." What local network range are you using for your networks?

6 of 215 comments (clear)

  1. What about 172.16.0.0/12? by Sunlighter · · Score: 5, Insightful

    This is an intermediate one that isnt widely used.

    I dont think it matters too much; few businesses have as many as 64,000 computers, so the 192.168 is big enough. But the 10 makes it easy to do interesting things with the other numbers, like making the first number the department number, etc.

    --
    Sunlit World Scheme. Weird and different.
  2. Broadcast domains. by cbiffle · · Score: 2, Insightful

    If you use same-size subnets in both cases, there's no difference between the 10-net and the 192-net.

    If you're using 10/8 vs. 192/24, and have enough computers to justify that, you'll want to break it up into subnets to limit the size of your broadcast domains.

  3. What ever you do PLEASE document it by MerlynEmrys67 · · Score: 4, Insightful
    Worked for a company doing networking software, so I kept a LARGE number of test devices/networks hanging off of my workstation on a test subnet... Problem was various company sites would drop off of my workstation when the IT dept. would randomly assign private addresses inside the company... I couldn't even get them to whack off a /16 for "test networks" because they thought that they would need all of the private address space scattered across all three ranges...

    So my advice is whack off 1/4 of the 10/8 space - and reserve it for true "private addressing" and use all of the rest of the private addressing ranges as you see fit

    --
    I have mod points and I am not afraid to use them
  4. Hi, I'm ignorant. Pleeztameecha! by mstorer3772 · · Score: 2, Insightful

    I get all the mask/subdomain stuff, but what's the / at the end of the IP address mean?

    --
    Fooz Meister
  5. Neither by anthony_dipierro · · Score: 3, Insightful

    Use IPv6 for your internal network.

  6. Re:That's great in theory by afidel · · Score: 0, Insightful

    The VPN solution should give you a NAT'd VPN address. For instance when I VPN into work I get a 10.X address. I have a 192.168 internal address and a real routable IP address from my ISP. The only one that matters for transfers is the VPN address of 10.X

    --
    There are 4 boxes to use in the defense of liberty: soap, ballot, jury, ammo. Use in that order. Starting now.