HP ProLiant DL320 G4 Server - Manual (Page 14)

Initial setup considerations 14
External IP address
The ISP determines the IP address of the external interface of the ProLiant DL320 Security Server. The
address can be a statically assigned IP address or a dynamically assigned IP address. Statically assigned
IP addresses do not change over time. Dynamically assigned IP addresses change over the course of
hours, days, or weeks. Your ISP determines how frequently the address changes.
The type of address used is based on how much is spent on the Internet connection and the level of
service required. If you are using the ProLiant DL320 Security Server only for connecting the network
computers to the Internet, a dynamically assigned address fulfills that requirement. However, if you are
publishing servers on the internal network to the Internet or taking advantage of the VPN features of the
server, having a permanent IP address on the firewall external interface is a benefit.
A valid IP address must be assigned to the external interface of the server before connecting to the
Internet. Assign either a static or dynamic address to the external interface.
1. Determine if a statically or dynamically assigned external IP address exists before installing the
server.
2. If a statically assigned IP address exists, record it for future reference.
3. If a dynamically assigned IP address exists, configure the external interface to automatically obtain
an IP address.