Garnet Systems Co Ltd GAE3020 Manuel D’Utilisation

Page de 22
 
GARNET                                        GAE-3020 
12 
2.7 Ethernet Router Configuration 
There are multiple ways that routing can be set up depending on the 
requirements from the service provider. 
The following routing methods are described below:   
••
 IPoA Routing 
••
 PPP Routing 
••
  Routing using NAT (can be used with either IPoA or PPP) 
 
 
2.8 IPoA Routing 
When configured for IPoA, data is routed between Ethernet and Classical IP over 
ATM (RFC1577).  The IPoA data runs over a PVC between the modem and the 
service provider. IP addresses, the PVC and the peak cell rate need to be defined 
by the service provider. Since the modem is routing, an IP address needs to be 
assigned on both modem’s interfaces. The PC’s default gateway must be set to 
the Ethernet IP address of the modem. The following configuration must be 
performed to set up the modem for the above example: 
 
••
 Add the Ethernet device to the router and assign it an IP address. In the 
command, “ethernet” is a label used to refer to this device. The arguments 
“ether” and “//edd” are required for an Ethernet device. 
ip device add ethernet ether //edd 192.168.101.2 
••
  Add the IPoA device to the router and assign it an IP address. In the following 
command, “ipoa” is a label used to refer to this device. The arguments “atmpvc” 
and “//atm” are required for an IPoA device. 
ip device add ipoa atmpvc //atm 192.168.102.2 
••
 Save configuration and reboot system. This is necessary when configuring 
the system from the console, because the following commands can only operate 
on router interfaces which have already been created. 
config save 
restart 
••
  Enable forwarding between the router interfaces: 
ip relay all 
••
  Add a default route with the service provider as the gateway: