P-660R-Tx Series Support Note s
10. Using IP Alias
What is IP Alias?
In a typical environment, a LAN router is required to connect two local networks.
The P-660R-Tx can connect three local networks to the ISP or a remote node;
we call this function as
'IP Alias'
. In this case, an internal router is not required.
For example, the network manager can divide the local network into three
networks and connect them to the Internet using P-660R-Tx's single user
account. See the figure below.
P-660R-Tx
The P-660R-Tx supports three virtual LAN interfaces via its single physical
Ethernet interface. The first network can be configured in Web Configurator,
Advanced Setup,
Interface Setup -> LAN -> DHCP
. The second and third
networks can be configured in telnet CLI.
There are three internal virtual LAN interfaces for the P-660R-Tx to route the
packets from/to the three networks correctly. They are
enif0
for the major
network,
enif0:0
for the IP alias 1, and
enif0:1
for the IP alias 2. Therefore, three
routes are created in the P-660R-Tx as shown below when the three networks
are configured. You can edit ip alias routes of P-660R-Tx by command in
CLI
:
lan index [index number]
Usage: index number =1 main LAN
2 IP Alias#1
3 IP Alias#2
lan ipaddr <ip address> <Mask>
lan save
If the P-660R-Tx's DHCP is also enabled, the IP pool for the clients can be any
of the three networks.
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