Connecting A Local Site By Segmenting The Lan; Connecting A Local Site To The Internet - Black Box LRB500A User Manual

2.3.2 C
ONNECTING A
In this application, the Router is used to connect LAN segments within a local site.
Kernal: Static Routing (Routing table to External or Internal Gateways)
• Firewall
External: Fixed External IP or DHCP client (Dynamic IP only)
Internal: Device Fixed IP, DHCP Server
Workstation
IP Address
192.168.0.106
Workstation
IP Address
192.168.0.105
Workstation
IP Address
192.168.0.104
Workstation
IP Address
192.168.0.103
Figure 2-4. Connect local site (segmenting the LAN).
2.3.3 C
ONNECTING A
In this application, the Router is used to connect up to 253 internal IP addresses to
the Internet using a single shared external IP address.
Kernal: NAT (outgoing TCP/IP connection sharing single External Port IP or
using multiple IP Mapping)
• Virtual Server (allow incoming specific TCP/IP service request redirect to
internal server)
• Firewall
External: Fixed External Port IP and mask DNS IP, Gateway IP, or DHCP client
(Dynamic IP for the device, DNS and Gateway assigned.)
Internal: Device Fixed IP, DHCP Server
L S S
OCAL ITE BY EGMENTING THE
Department
Segment
(Ethernet)
L S
OCAL ITE TO THE
LAN
Net Access
Broadband
Router
I
NTERNET
CHAPTER 2: Introduction
Workstation
IP Address
192.168.1.100
Workstation
IP Address
192.168.1.101
Server
IP Address
192.168.1.102
Major Segment
(Ethernet)
15