Allied Telesis L2TP Tunnel Network Card User Manual


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Page 2 | AlliedWare™ OS How To Note: Dynamic Routing over L2TP
An example scenario for RIP over L2TP
Related How To Notes
You may also find the following How To Notes useful:
z How To Configure Remote L2TP Tunnels
z How To Configure Allied Telesis and Cisco Routers To Interoperate Over L2TP
How To Notes are available from www.alliedtelesis.com/resources/literature/howto.aspx.
An example scenario for RIP over L2TP
Our example uses two office sites that are connected via a WAN connection over the
Internet using an L2TP tunnel for security.
The setup (shown below) shows the 'Central office' and 'Remote office' routers connected,
in this case, back to back via their Ethernet interfaces (this would likely be the remote WAN
connection across the Internet, with perhaps static IP assignment from the ISPs).
WAN
X PC
HUB
POWER
ETH0
X PC
HUB
POWER
ETH0
Central office router
Remote office router
VLAN 2 IP=222.222.2.1
VLAN 1 IP=222.222.1.1
VLAN 2 IP=200.200.2.1
VLAN 1 IP=200.200.1.1
192.168.1.1
192.168.2.1
Eth0 IP=10.10.10.1
Eth0 IP=10.10.10.2
PPP0 over
L2TP tunnel
RIP propogates
VLAN OSPF
routes over
L2TP tunnel
to remote router
OSPF used on
local VLAN
networks
OSPF used on
local VLAN
networks
rip-l2tp.eps
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