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We will use VPN over the internet and going to form one active directory in the main office. 
The two offices are in different country and user over seas will access the Active directory of the Main Office. 
in this case the Main office will have the lease line and the over seas branch will use DSL. 
 
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IF you have any other suggestion please let me know. 
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I already Have build my network infrastructure in the main office including the following Internet Protocol: 
1- IP address (Server) .............. 172.16.0.2 
2- Subnet Mask ......................... 255.255.255.0 
3- Gate way (Router) ................ 172.16.0.2 
............................................................................ 
DNS Addresses are: 
1- 172.16.0.2 
2- 172.16.0.3 
 
The question: 
I build a new Network in another branch which will be linked to the Main Office. What will be the Internet Protocol TCP IP for the Main Servers. 
Server1 for Active Directory 
Server2 for ISA Server 
??? 
 

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I already Have build my network infrastructure in the main office including the following Internet Protocol:
1- IP address (Server) .............. 172.16.0.2 
2- Subnet Mask ......................... 255.255.255.0
3- Gate way (Router) ................ 172.16.0.2
............................................................................
DNS Addresses are:
1- 172.16.0.2 
2- 172.16.0.3

The question:
I build a new Network in another branch which will be linked to the Main Office. What will be the Internet Protocol TCP IP for the Main Servers.
Server1 for Active Directory
Server2 for ISA Server
???



How do I create the IP addreses Upon Building another network branch which will be linked to the Head Quarter.

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

Transmission Control Protocol/Internet Protocol (TCP/IP) is the set of networking protocols that define end-to-end connectivity specifying how data should be packeted, addressed, transmitted, routed and received at the destination. This functionality is organized into four abstraction layers which are used to sort all related protocols according to the scope of networking involved.

TCP/IP

The Internet Protocol (IP) is the principal communications protocol in the Internet protocol suite for relaying datagrams across network boundaries, organized in abstraction layers, traditionally called "Link," "Internet," "Transport" and "Application”. Its routing function enables internetworking, and essentially establishes the Internet. IP defines packet structures that encapsulate the data to be delivered. It also defines addressing methods that are used to label the datagram with source and destination information.