You are just having way too much fun today Don.

Jon

On Fri, Jan 13, 2012 at 6:58 PM, Don Ely <[email protected]> wrote:

> Pshaw!  Just implement IPv6 and be done with it!!  hehehe
>
>
> On Fri, Jan 13, 2012 at 3:55 PM, Jon Harris <[email protected]> wrote:
>
>> I with Ben on this go the option 2 and get it done now rather than wait
>> until it bites you again with other issues.  Segregation would have the
>> added benefit of reducing the attack surface for the servers if nothing
>> else comes out of it.
>>
>> Jon
>>
>> On Fri, Jan 13, 2012 at 7:47 AM, Ben Scott <[email protected]> wrote:
>>
>>>  I'll second everything ASB said, and add one more remark: If one
>>> *is* going to reorganize the network topology -- say, by putting
>>> servers in one net, wireless in another, or what-have-you -- this
>>> would be the time to do it.
>>>
>>> On Fri, Jan 13, 2012 at 7:35 AM, Andrew S. Baker <[email protected]>
>>> wrote:
>>> >
>>> > It is possible to implement larger subnets than /24 without leaping
>>> all the way to /16
>>> >
>>> > "Best" is always subjective, but without telling us how many IPs you
>>> foresee needing, and other key details, you'll be the only person capable
>>> of determining it.
>>> >
>>> > You have to ensure that all your edge and near-edge devices
>>> (firewalls, VPN concentrators, load-balancers) are updated accordingly.
>>>  Also, the larger your subnet, the greater the chance of overlap with a
>>> subnet on the other side of a VPN.
>>> >
>>> > Beyond that, all the advice dispensed on subnetting this week should
>>> prove helpful.
>>> >
>>> > ASB
>>> > http://XeeMe.com/AndrewBaker
>>> > Harnessing the Advantages of Technology for the SMB market…
>>> >
>>> >
>>> >
>>> >
>>> > On Fri, Jan 13, 2012 at 4:33 AM, Oliver Marshall <
>>> [email protected]> wrote:
>>> >>
>>> >> We’ve hit the limit of internal IP range and need to extend it.
>>> >>
>>> >>
>>> >>
>>> >> There’s a couple of options and I’m trying to gauge which is the
>>> “best”.
>>> >>
>>> >>
>>> >>
>>> >> Option 1 would be the easiest which is to extend our current range (
>>> 10.1.37.0/24) to a /16 (10.1.0.0/16) to give us a whopping 65k IPs.
>>> This seems easy enough, change the IP settings in DHCP and on the servers
>>> and firewall and reboot it all. However we then have a myriad of VPN
>>> connections which will also need adjusting and a stack of old kit which
>>> hasn’t been touched since the animals went in two by two.
>>> >>
>>> >>
>>> >>
>>> >> Option 2 is to segregate the non-important stuff. Everyone here has a
>>> desktop, most also have a laptop. Everyone has a smart phone as well and
>>> most also have a tablet of some kind. Add to that the IP based webcams,
>>> printers, internet Tellys and the like and you can see why we’ve hit the
>>> limit. Really only the laptops and the desktops need internal access (to
>>> servers and the like). Everything else only needs external internet access.
>>> So we set up a separate wifi for external access on its own IP plumbed in
>>> to its own port on the firewall. That way we reduce the need for internal
>>> IPs.
>>> >>
>>> >>
>>> >>
>>> >> Any other options or any issues you may see?
>>> >>
>>> >>
>>> >>
>>> >> Anyone know what the real world impact will be of changing the IP
>>> subnet in a small to medium size network ?
>>> >>
>>> >>
>>> >>
>>> >>
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>
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