<div>
There is slightly more to it.....<br />
Don't forget other networked equipment. (esp. the ones without DHCP).<br />
<br />
Network services (Printing, LDAP, DNS, log servers, ...) are also changing. So you will also need to update policies (Windows) or config files that address those services. Part of them (Like DNS) might be supplied in DHCP.<br />
Check the configuration for use of hard IP addresses in stead of names.<br />
<br />
Check DNS service records (Like MX, that require IP addresses and not names).
</div>


There is slightly more to it.....
Don't forget other networked equipment. (esp. the ones without DHCP).

Network services (Printing, LDAP, DNS, log servers, ...) are also changing. So you will also need to update policies (Windows) or config files that address those services. Part of them (Like DNS) might be supplied in DHCP.
Check the configuration for use of hard IP addresses in stead of names.

Check DNS service records (Like MX, that require IP addresses and not names).

<div>
<div class="content wysiwyg-content">
Hi Experts,<br />
<br />
We are merging with another company and need to change our private subnets to theirs. <br />
<br />
We have DHCP scopes created for the clients We will change server IP's to the new subnet. My concern is we have 2 VLAN's &nbsp;on our switches that need to be changed along with the IP for management.<br />
<br />
Is this the correct order and approach.<br />
<br />
Routers are complete(not using them as gateways.<br />
<br />
1) Change Switch management IP<br />
2) Change VLAN IP's leave VLAN ID the same.<br />
3) Change all servers to new IP and Gateway.<br />
4) Activate new workstation scopes<br />
<br />
thanks
</div>
</div>


Hi Experts,

We are merging with another company and need to change our private subnets to theirs. 

We have DHCP scopes created for the clients We will change server IP's to the new subnet. My concern is we have 2 VLAN's  on our switches that need to be changed along with the IP for management.

Is this the correct order and approach.

Routers are complete(not using them as gateways.

1) Change Switch management IP
2) Change VLAN IP's leave VLAN ID the same.
3) Change all servers to new IP and Gateway.
4) Activate new workstation scopes

thanks

Changing network subnet

Network design and methodology, also known as network architecture, is the design of a communication network. It is a framework for the specification of a network's physical components and their functional organization and configuration, its operational principles and procedures, as well as data formats used in its operation. In telecommunication, the specification of a network architecture may also include a detailed description of products and services delivered via a communications network, as well as detailed rate and billing structures under which services are compensated.

Network Architecture

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.

Routers

The Dynamic Host Configuration Protocol (DHCP) is an auto configuration protocol used on IP networks and an extension of the Bootstrap Protocol. DHCP allows for computers to be configured automatically to communicate with each other over an IP network without the need for manual setup by a network administrator. The implementation of DHCP relies on a DHCP server to hand out network configuration information to DHCP-capable clients that request an IP address (and other information required or useful in communicating with other devices on an IP network). In addition to an IP address, common configuration information served over DHCP includes a default gateway, subnet mask and DNS sever(s).

DHCP

A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.