Compatible Systems MicroRouter 1200i Manual de usuario descargar pdf (Pagina 41)

GORAMO – Janusz Górecki

MultiLink Router and MikroRouter

www.goramo.com.pl

[email protected]

age 41 from 41

7.2

Transitive router

Frequent use of the router is working as an interface to link E1/V.35. Mostly this applies to users

who run a network based on DSL, and wanting to get more bandwidth - exchanged on the connection

speed POLPAK-T or faster connection.

Since the router requires only that he mediated possibly transparently link between the new and

pre-configured computers / routers that were previously assigned global addresses. Unfortunately, in

most cases you must change the global addresses assigned to computers configured already - but it's

usually easy requirement to meet.

Previous configuration

Desirable configuration with the division to the WAN and LAN

The desired configuration is shown in the preceding paragraph of this diagram. In this

configuration ROUTER MULTILINK on the WAN side has to communicate with a gateway of ISP

Gateway and on the LAN side has to communicate with our computers. LAN side is all what we have

physical access. WAN side it is link and a network interface connected to the interface - the rest of the

WAN - is at the ISP.

The router communicates with the Internet provider working in the WAN (one of its

interfaces, mostly HDLC, or PVC) is often called in network as router subscriber network - which is a

network which operates an ISP gateway. In the LAN, router is working together with the "old"

devices.

In each network the router must have an IP - matching network. "Old" devices must have IP

addresses that match the LAN and globally. Router on the LAN side must have a matching IP to the

LAN. WAN-side router must have a matching IP network which operates an ISP gateway.

Since the routing between all network interfaces by default is available, the WAN router

transmit all packets addressed to devices with global addresses on the LAN. ISP Gateway will be the

default option for packets addressed to the "other" computers; packets of global addresses will be

routed to the ISP. Nothing but a network address assignment is not needed.

For example, when we are dealing with a link POLPAK-T we obtain the addresses of

connecting networks, such as:

80.50.70.30/30

ISP gateway is available in the: 80.50.70.31

Dedicated is the IP address for your router: 80.50.70.32

I assign these addresses the WAN interface and enter the Gateways tab. If the globally allocated / 29

(Other than the Web connection!)

One of them is excreted for the router, and the rest split between the old device. Enter configuration

into tab Interfaces for port Eth0 or Eth1 (according to which we are connected to the LAN). Nothing

more to be done - just make sure that the Firewall tab is not blocked for unwanted traffic packages -

Default Policy: Deny - should be changed to ACCEPT.

old connection

OLD SERVER GLOBAL IP

250.100.100.5

OLD ROUTER 250.100.100.6 with

VPN CONFIGURATION

new connection

ROUTER

MULTILIN

OLD SERWER GLOBAL IP

80.50.200.35

OLD ROUTER 80.50.200.36 with

VPN CONFIGURATION

WAN side

LAN

side

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