Virtual CD/DVD Server - CDM

Dynamic IP Addressing

DHCP
DHCP (Dynamic Host Control Protocol) is the process by which a pool of IP addresses are distributed to workstations and other network attached devices by the DHCP Server, which maintains the database of addresses. When a device logs off of the network the IP address is returned to the pool and may be used by the next device that logs on. This means that the same IP address may not be assigned to the same device every time an address is requested. This system helps to prevent address conflicts, can assist in network configuration, and allows a limited pool of registered IP addresses to be distributed to a large group of devices.

The Virtual DVD Server supports DHCP, but this feature is not enabled by default. After the initial administration access, detailed in the section titled Connecting to the Network, the following steps may be used to enable DHCP support.

1. From the main Administration page, select Configuration.
2. Select the link to the TCP/IP section.
3. Select the "Obtain an IP Address Automatically" option.
4. Place a check in the DHCP in the box.

BootP and RARP
BOOTP (Bootstrap Protocol) and RARP (Reverse Address Resolution Protocol) are similar to DHCP and are enabled in the Virtual DVD Server by following the same steps.

BOOTP is the basis for, but it is not as fully featured as, DHCP.

RARP uses a static table that relates an IP address to the workstation physical location (MAC or Media Access Control) address. When a device requests and IP address, the MAC address of the machine is used to assign the IP address. An entry must be made in the RARP table for the device to receive an IP address.

Multiple IP Addresses
The Virtual DVD Server can support a maximum of 8 IP addresses and homepages. The default IP address of the unit and the Administrator main page use one of these, leaving capability for seven additional IP addresses/homepages. The Virtual DVD Server can therefore function as an instant Web server, with virtual host capability for HTTP applications.

1. From the main Administration page, select Configuration.
2. Click on the TCP/IP Setup link.
3. Click on the More IP Addresses link.
4. The Advanced IP Menu page will open.
5. To enable a secondary IP Address place a check in the Enable IP1 box.
6. Enter the assigned IP address/subnet mask in the appropriate fields.
7. Place a check in the Specified CD Path box, and choose the Imaged CD where the HTML homepage file is located from the drop down list.
8. Place the path to the HTML file in the Path box.
9. Click on the Update button at the bottom of the screen.

The Gateway IP, WINS, DHCP, BOOTP RARP and Direct Ping functions of the Virtual DVD Server are only available for the primary IP address.