User`s guide

VigorIPPBX 3510 Series User’s Guide
148
Dest IP End Type the destination IP end for the specified WAN interface. If this
field is blank, it means that all the destination IPs will be passed
through the WAN interface.
Dest Port Start Type the destination port start for the destination IP.
Dest Port End Type the destination port end for the destination IP. If this field is
blank, it means that all the destination ports will be passed through
the WAN interface.
4
4
.
.
3
3
L
L
A
A
N
N
Local Area Network (LAN) is a group of subnets regulated and ruled by router. The design
of network structure is related to what type of public IP addresses coming from your ISP.
4
4
.
.
3
3
.
.
1
1
B
B
a
a
s
s
i
i
c
c
s
s
o
o
f
f
L
L
A
A
N
N
The most generic function of Vigor router is NAT. It creates a private subnet of your own. As
mentioned previously, the router will talk to other public hosts on the Internet by using
public IP address and talking to local hosts by using its private IP address. What NAT does is
to translate the packets from public IP address to private IP address to forward the right
packets to the right host and vice versa. Besides, Vigor router has a built-in DHCP server that
assigns private IP address to each local host. See the following diagram for a briefly
understanding.