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F. IP Network Addressing Scenarios
F-4
February 2001 3160-A2-GB21-90
Scenario 3
This third scenario (Figure F-3, Local Carrier Connected to Remote Carriers)
shows a local carrier connected to remote carriers that have remote standalones.
Each carrier must be on a separate subnet but, as in the previous scenario, the
carrier-remote combination can share a common subnet. Once again, the subnet
mask is FF.FF.FF.00 for all devices. A static route must be set up in the NMS host
for each subnet: 135.18.4.0, 135.18.6.0, 135.18.20.0.
Figure F-3. Local Carrier Connected to Remote Carriers
ETHERNET
135.18.6.34
LAN
ADAPTER
T1
C
O
M
S
P
H
E
R
E
3
6
1
0
C
O
M
S
P
H
E
R
E
3
6
1
0
135.18.6.22
135.18.6.1 . . . . 135.18.6.16
135.18.40.1
COM IP
ADDRESS:
135.18.40.4
SUBNET 135.18.40.0
SUBNET 135.18.6.0
T1
C
O
M
S
P
H
E
R
E
3
0
0
0
135.18.20.45
C
O
M
S
P
H
E
R
E
3
6
1
0
C
O
M
S
P
H
E
R
E
3
6
1
0
135.18.20.23
135.18.20.1 . . . . 135.18.20.16
SUBNET 135.18.20.0
C
O
M
S
P
H
E
R
E
3
0
0
0
T1
T1
135.18.4.1 . . . . 135.18.4.16
C
O
M
S
P
H
E
R
E
3
0
0
0
SUBNET 135.18.4.0
T1
T1