1 WAN + 4 Ports Ethernet SOHO Router P 32
In general, the mechanism of multiple DMZ host is based the mapping relation between WAN IP and LAN IP.
(shown below). And these DMZ host IP will skip NAT port translation handling to gain
WAN IP1
SOHO Router
LAN IP1 (DMZ host1)
WAN IP2
SOHO Router
LAN IP2 (DMZ host2)
WAN IP3
SOHO Router
LAN IP3 (DMZ host3)
………………………………………………………
WAN IP8
SOHO Router
LAN IP8 (DMZ host8)
unrestricted 2-way communication capability.
Most likely the multiple DMZ host are applied in router-to-router inter-connection SOHO environment (please
refer to Figure 4-2). Home user is less popular due to the “a range of WAN IP address”. Because IP address is
another more and more important and expensive resources now.
Some ISP provides leased line service (DSL is more common) to subscribers, meanwhile could offer a range of
IP address for subscription. In this case, there are two type of connection configuration. One is Bridging mode,
the other is Routing mode.
For example, the ISP provides 210.65.226.0 ~ 7 IP range (subnet mask is 255.255.255.248), then subscriber
could have 5 computers at most to access Internet simultaneously. Surely additional computers are also able to
access Internet via SOHO Router. (Please refer to
Figure 4-1
)
