Change to Private IP Addresses 1

[BHX90]

Hi,

I have a corporate network consistng of a mixture of NT4 and 2000 servers on ageing hardware. The IP scheme used is 128.1.1.x for the main site and 128.2.1.x for a second site.

Should I change the IP scheme to the reserved ip addresses such as 10.1.1.x etc or is it OK to leave it as is? I will be changing most of the servers so if it should be changed could I have the new servers on the 10.1.1.x network and the old servers on the 128.1.1.x network and route between the two?

Cheers

 

[chieftan]

I would recommend that you convert to a private address range (you have not stated if you have any connection to the Internet).

10.x.x.x will give you plenty of addresses.

Any different subnets will require layer 3 routing to talk to each other. You can either use a router or use a layer 3 switch and seperate with VLAN's.

So many variables here for you to use......

 

[LawnBoy]

Private addresses give you another layer of security, since none of your private addresses will ever be visible from the 'net. This does involve setting up a proxy service, but is well worth the trouble.

You will need a router between the two subnets. I don't see how VLANs could help with your situation.

If your clients are on DHCP I think it would be easiest to switch all your servers over to the new subnet one weekend and then issue the new subnet to your clients via DHCP. Then start building the new servers using the new subnet. No router to mess with, no broadcast domain issues, KISS.