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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).
135.19.6.22
T1
135.19.6.34
ETHERNET
135.18.40.1
SUBNET 135.18.40.0
Figure F-4. Local Carrier Connected to Remote Carriers – an Alternative
3166-A2-GB20-20
T1
C O
M S
P H
E R
E
3 0
0 0
LAN
ADAPTER
SUBNET MASK:
FF:FF:00:00
SUBNET 135.19.0.0
March 1999
IP Network Addressing Scenarios
135.19.20.23
135.19.20.45
T1
COM IP
ADDRESS:
135.18.40.4
COM
T1
T1
C O
M S
P H
E R
E
3 0
0 0
T1
C O
M S
P H
E R
E
3 0
0 0
496-14648-02
F-5
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