ipcop support

Hello guys,

our company have decided long time ago to have an internal subnet of 89.0.0.0/24.

Now I want to create a legal subnet of 10.0.0.0/16 and move the existing client pc's and infrastructure one by one to the new 10.0.0.0/16 subnet without having a network down time.

The existing situation is as follows:
----------------------
|IPCOP |
| |
|RED : x.x.x.x |
|GREEN : 89.0.0.0/24 |
----------------------
|
|
----------------------
| switch |
----------------------
|
----------------------
| 150 Client PC's |
-----------------------

I was thinking to do the following:
1/ Create new VLAN on the green interface of ipcop 10.0.1.254
2/ Create static routes in IPCOP between 89.0.0.0/24 and 10.0.0.0/16
3/ Do I need to change something to Iptables to make communcation between this 2 subnets possible?

Is this a good way and what commands do I need to realize this?

Thanks in advance for yours assistance!

Grtz,
Kristof

Do all your ~150 client PC's get their IP addresses from via DHCP from IpCop or other server ?
If yes, change your IpCop Green subnet settings, DHCP server settings, flip the switch, and tell them all to reboot.
YMMV

Hello,

thanks for the quick reply. DHCP is arranged by a Windows 2003 Server. The problem is that there are a lot of laser machines too, who have a static IP and it can take quite a while to let every supplier pass to reconfigure the machines with the new ip address.

I can easyly change the dhcp scope for all the computers in the network, but the problem is more related to machines and other equipment who have a fixed address and where we depend on the supplier to change something. So there will always be a time where we have temporarily 2 subnets.

Change DHCP is a good idea, but how to let the existing network communicate with the new range?

Grtz

150 clients and a handful of printers and you can't make the changeover from 2am-5am on Saturday?

Change DHCP, remote into the Printer setups should kill an hour, then you have 2 more hours to test and walk around and reboot the lasers.

And with ONLY 150 clients, why do you need a /16?

Seems like you're making a simple switch over into a major project.

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-=[ If you want answers: provide lots of information, including tiny details! ]=-

In our environment/s, we use DHCP server to assign all static IP addresses, as well as issue dynamic IP leases.
Makes for clean 'n simple central management of all IP's.
Since you'll be doing some serious network reconfiguration/s at your place, you might like to consider this tactic too.
YMMV

_________________
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