Every branch, including the Head Office in Johannesburg, will need to have a DHCP ¡V Dynamic Host Configuration Protocol Server. This enables for IP addresses in that particular network to be assigned dynamically to all networked computers. This protocol brings with the advantages of:
             „« Assigning valid IP addresses i.e. those that are appropriate for the type of network type concerned and especially the subnet mask that the system is on.
             „« Reducing the chances of getting redundant IP addresses leading to errors and conflicts.
             „« Automatically reconfiguring the IP addresses of workstations that were moved to another segment of the network.
             „« Saving a network administrator considerable time and expense.
             The Proxy or Internet Server that is connected to the PDC in the head office has to run the Hypertext Transfer Protocol. This allows a Web Server to be connected to Web Browsers. For this reason all the computers in any domain of any branch that requires Internet access also need to run this protocol. It creates a link between the workstation of the user and any document he/she is trying to reach.
             This server also needs to run an SMTP ¡V Simple Mail Transfer Protocol. As its name suggests, this protocol allows for the transmission of mail from one Server to another. It is the most popular because it is fast, reliable and effective.
             On the other side of things, the PDC¡s in the domains of the branches need to run the Internet Mail Access Protocol ¡V IMAP or the Post Office Protocol ¡V POP to enable individual staff members to download their mail.
             The IMAP may have a lot of advantages in comparison to POP and infact seems to be replacing it in certain places:
             „« It allows mail to be downloaded selectively
             „« Different message headers can be viewed
             „« Messages can be downloaded with a different part at a time
             „« Messages ca...