Paradyne 7112 - Manual (Page 39)

IP Addressing
5-3 7112-A2-GB20-20 March 1998
FDL Connection – Extending Subnet for FDL
In this example:
H DSU/CSU A is connected to the NMS on LAN A through the 10BaseT port.
H
DSU/CSU A is connected to DSU/CSU B through the FDL.
H DSU/CSU B is addressed through the FDL as if it existed on LAN A.
H
DSU/CSU A forwards all data to DSU/CSU B using Proxy ARP.
H
A proprietary RIP is used to learn the IP addresses of the remote FDL
interfaces. It can take up to 5 minutes for the RIP protocol to exchange
addresses once the FDL is active.
FDL IP
Address:
140.20.10.4
97-15699-01
FDL IP
Adress:
135.18.5.4
Subnet 140.20.10.0 Subnet 135.18.5.0
T1
Network
FDL
NMS B
Router
Router
7112
DSU/CSU
A
7112
DSU/CSU
B
135.18.5.2
135.18.5.1
Ethernet IP
Address:
135.18.5.3
140.20.10.2
140.20.10.1
Ethernet IP
Address:
140.20.10.3
LAN A LAN B
NMS A