G. IP Network Addressing Scenarios
G-6 March 2001 3160-A2-GB24-10
Local and Remote Carriers Same Subnet

An alternative addressing scheme, for the network is shown in Figure G-5, Local

Carrier Connected to Remote Carriers an Alternative. 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).

Figure G-5. Local Carrier Connected to Remote Carriers an Alternative

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