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IP Network Addressing Scenarios
F-5
3160-A2-GB21-80
March 1999
Scenario 4
An alternative addressing scheme, for the network is shown in Figure F-4. This
example uses a subnet mask of FF.FF.00.00 for the COM port in the central-site
carrier (only), with all of the remaining subnet masks set to FF.FF.FF.00. The
advantage to this scheme is that only one route must be added to the NMS host
(135.18.0.0).
ETHERNET
135.19.6.34
496-14648-02
LAN
ADAPTER
T1
COMSPHERE 3610
COMSPHERE 3610
135.19.6.22
135.19.6.1 . . . . 135.19.6.16
135.18.40.1
COM IP
ADDRESS:
135.18.40.4
SUBNET 135.18.40.0
SUBNET 135.19.0.0
T1
COMSPHERE 3000
135.19.20.45
COMSPHERE 3610
COMSPHERE 3610
135.19.20.23
135.19.20.1 . . . . 135.19.20.16
COMSPHERE 3000
T1
T1
135.19.1.1 . . . . 135.19.1.16
COMSPHERE 3000
T1
T1
COM
SUBNET MASK:
FF:FF:00:00
Figure F-4. Local Carrier Connected to Remote Carriers – an Alternative