DHCP

ou can set up the DSX system to be a Dynamic Host Configuration Protocol (DHCP) client. If the installation site has a DHCP server, this means that the site server can automatically provide the DSX with the following important network settings: • IP Address (the network address of the DSX system). • Subnet Mask (that allows the site server to differentiate internal LAN from external internet addresses). • Router Address (the address of the site router that handles external internet traffic). • Domain Name Server (DNS) Address (the servers that convert domain names [like necdsx.com] to their numeric IP addresses). DHCP Modes The DSX can operate as a DHCP client in either of two modes: DHCP or DHCP with Manual IP. • DHCP • When the DSX is initially connected to the installation site LAN, it requests the site DHCP server to provide (lease) an IP address from it’s available pool of addresses.  The DHCP server also provides the Sub- net Mask, Router  Address, and the DNS address.  Additionally, the DHCP server also tells the DSX the duration of the DHCP lease. Normally, the lease is automatically maintained as long as the DSX is connected to the site LAN. However, depending on the site DHCP server set up, the DSX may be periodically provided with a new IP address. Because of this, the DHCP mode may not be the best choice when using remote programming with the System  Administrator. • DHCP with Manual IP • n this mode, the DSX gets the Subnet Mask, Router  Address, and DNS  Address from the site DHCP server but uses the IP address you manually enter.  This may be your best choice when setting up remote programming with the System  Administrator since the DSX IP address can never change.  This option does not set up a DHCP lease, so the Subnet Mask, Router  Address, and DNS Server  Address settings are applied only one time.  Always check with the site network administrator be