Configuring Expansion Units; Reconfiguring The Private Ip Network - 3Com 3C421600A Management Manual

34 C 2: U
HAPTER SING THE
Configuring
Expansion Units
Reconfiguring the
Private IP Network
C L I
OMMAND INE NTERFACE
The RAS 1500 requires minimal configuration. However, several unique
situations require additional Port Expansion Unit or Primary Access Unit
configuration.
The Router Unit that supports the expansion units uses a private IP
network over the IEEE1394 bus (FireWire) to communicate with the
expansion units. Because the Router Unit communicates with the
expansion units using IP, configure a private IP subnet address to the
FireWire interfaces.
The Router Unit configuration software selects the IP address/subnet pair
192.168.128.0/255.255.255.0 for this private network. This is defined as
a private Class C subnet, is not to be transmitted onto the public Internet,
and need not be registered with the IETF. Although it is private, it may
possibly conflict with other private IP networks defined in an office or
enterprise. If there is a conflict, unpredictable problems with routing
those private IP addresses through the RAS 1500 and unpredictable
problems with booting expansion units could occur. Therefore, the RAS
1500 supports reconfiguration of this private network.
Use the following steps to reconfigure the RAS 1500 private IP network:
1 Select a private IP network/subnet pair that does not conflict with any
other private addresses inside of your internet gateway.
Contact your Network Administrator for more information.
2 Disable the IP network associated with the FireWire.
disable ip network ip_fwire
3 Reconfigure the IP network associated with the FireWire with the unique
IP network/subnet mask selected in step 1 (where x.x.x.x/x.x.x.x is the address
mask, subnet pair).
reconfigure ip network ip_fwire address x.x.x.x/x.x.x.x
4 Re-enable the IP network associated with the FireWire.
enable ip network ip_fwire
5 Save your changes.
save all