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CorruptedLogic-<br />
I agree that 8 is a lot for us. &nbsp;I think the only reason we have this many is becuase, as I understood my predicessor, there is one for our firewall, one for our terminal server, and a handful more for any machines that may need to access the terminal server. &nbsp;These are not going through our firewall currently. &nbsp;I would like for them to eventually use VPN and go through our firewall as opposed to making a connection straight to the terminal server.<br />
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jaxstorm-<br />
Yes. &nbsp;We have a Sonicwall Firewall that acts as a DHCP server and issues all IPs. &nbsp;It sounds like my only issue will be my terminal server and its connecting machines. &nbsp;<br />
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We use a pop service as we only have about 15 email addresses.
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Ok, if you don't host your own mail, forget about the Mx record thing :o)<br />

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I am changing from an old t1 line to a new business class cable modem line. &nbsp;Our small business only requires about 8 IP addresses. &nbsp;The problem is that this network has been in place since long before I got here. &nbsp;I am feeling a little hesitant about moving our service over. &nbsp;I know I will need to change the static IP address, subnet mask, and gateway in my firewall box. &nbsp;I know that changing said static IP address will effect our VPN clients who should just need thier vpn clients adjusted. &nbsp;I know that we have an IP address assigned to a Terminal Services server. &nbsp;I know that we have 2 machines with dedicated ip addresses to access the Terminal Server. &nbsp;But I fear the unknown. &nbsp;I inherited this network which I am certain was built by an outside firm. &nbsp;There is no documentation. &nbsp;The last office manager just called on this firm to male any changes. &nbsp;I need direction on how to determine what ip addresses I have assigned to what so i can document this, and then attempt to move over.<br />
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I hope I am submitting this to the right zone!
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I am changing from an old t1 line to a new business class cable modem line.  Our small business only requires about 8 IP addresses.  The problem is that this network has been in place since long before I got here.  I am feeling a little hesitant about moving our service over.  I know I will need to change the static IP address, subnet mask, and gateway in my firewall box.  I know that changing said static IP address will effect our VPN clients who should just need thier vpn clients adjusted.  I know that we have an IP address assigned to a Terminal Services server.  I know that we have 2 machines with dedicated ip addresses to access the Terminal Server.  But I fear the unknown.  I inherited this network which I am certain was built by an outside firm.  There is no documentation.  The last office manager just called on this firm to male any changes.  I need direction on how to determine what ip addresses I have assigned to what so i can document this, and then attempt to move over.

I hope I am submitting this to the right zone!

changing isps and ips

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

Network Operations includes asset management, help-desk supervision, security and user policies, infrastructure administration and anything else that affects the operation of your network. Discussions will include those of best practices in platforms, configurations, performance, security and accounting.

Network Operations

Network analysis is the process of identifying and remediating the processes and systems within a network, including performance, connectivity and security. The process is performed through the use of tools developed for monitoring and analyzing network activity. Network problems that involve finding an optimal way of doing something are studied under the name combinatorial optimization. Examples include network flow, shortest path problem, transport problem, transshipment problem, location problem, matching problem, assignment problem, packing problem, routing problem, Critical Path Analysis and PERT (Program Evaluation & Review Technique).