Allied Telesis AR400 Series Router User Manual
Page 98
98
AR400 Series Router User Guide
Software Release 2.6.1
C613-02021-00 REV D
3.
Configure IP Routing
To clear any pre-existing IP configuration and turn on the IP routing
software on each router, enter the commands:
PURGE IP
ENABLE IP
On the Head Office router define two IP interfaces, one for the VLAN and
one for the wide area link:
ADD IP INT=VLAN2 IP=172.16.8.33 MASK=255.255.255.0
ADD IP INT=PPP0 IP=172.16.254.1 MASK=255.255.255.0
Repeat this procedure on the Remote Office router, defining one IP
interface for the VLAN and one for the wide area link:
ADD IP INT=VLAN3 IP=192.168.31.30 MASK=255.255.255.240
ADD IP INT=PPP0 IP=172.16.254.2 MASK=255.255.255.0
A routing protocol, such as RIP, can be enabled so that the routers can
exchange information about routes to all of the IP devices (hosts, PCs, file
servers, etc.) on the internet. However, on a dial-on-demand ISDN
connection this may result in excessive call charges. So for this example
static routes are defined. On the Head Office router enter the command:
ADD IP ROUTE=192.168.31.0 MASK=255.255.255.240 INT=PPP0
NEXT=172.16.254.2
Repeat this procedure for the Remote Office router, entering the command:
ADD IP ROUTE=172.16.8.0 MASK=255.255.255.0 INT=PPP0
NEXT=172.16.254.1
The IP routing software is now configured and operational on both routers.
4.
Test the configuration.
Check the IP configuration using the following commands and then
functionally test the configuration by establishing a Telnet (remote access)
connection to the remote router.
To check the routes, enter the command (on either router):
SHOW IP ROUTE
For each router, there should be a route to the LAN and PPP interfaces on
the local router and a route to the LAN interface on the remote router.
Test the PPP link between the two routers using the PING command on
each router to send ping packets to the router at the remote end of the PPP
link. On the Head Office router, enter the command:
PING 192.168.31.30
On the Remote Office router, enter the command:
PING 172.16.8.33
Within a few seconds the router will display a message like:
Echo reply 1 from 172.16.8.33 time delay 20 ms
indicating a response was received from the router at the remote end of the
PPP link.
To functionally test the connection between the two routers, use Telnet to
establish a connection to the remote router. Enter the following command
on the Head Office router to connect to the Remote Office router:
TELNET 192.168.31.30