5. IP Addressing

All Configurations

he NTU obtains its IP address when the PPP link is established over the EOC.

Use the ATI to assign:

An IP address for each NMS. See Table A-14, SNMP NMS Security Options,

Tin Appendix A, Configuration Options.

An IP address for the TFTP server you wish to use to upload and download configurations. See Configuration Loader in Chapter 9, Transferring Firmware and Configurations Using TFTP, and the documentation for your TFTP server.

Review the following information in preparation for selecting an IP addressing scheme.

Any legal host address is allowed for a given subnet. The address choice within the subnet is arbitrary.

A single route to a subnet is all that is needed to reach every device on a subnet. The unit’s routing table supports a maximum of 20 routes.

IP Addressing Example

Figure 5-1, Peer IP Address Assignments, shows IP addressing in a typical network. Note that the Peer IP Address:

TRefers to the IP address of the unit configured as an NTU. Is assigned by the LTU.

DSLAM

MCC NTU

MCC

LTU

 

87xx

Port 1

 

 

 

 

Peer IP Address = 126.35.1.32

 

 

Port 2

 

 

Peer IP Address = 126.35.1.33

 

 

Port 3

 

 

Peer IP Address = 126.35.1.34

 

 

Port 4

 

 

Peer IP Address = 126.35.1.35

DSLAM

Port 5

MCC Backplane

Peer IP Address = 126.35.1.36

Port 6

Address = 126.35.1.1

MCC Backplane

Peer IP Address = 126.35.1.37

Port 7

Mask = 255.255.255.0

Peer IP Address = 126.35.1.38

 

 

LTU Backplane

 

Port 8

Address = 126.35.1.16

Peer IP Address = 126.35.1.39

MCC Base

Address = 126.35.50.1

MCC Base Subnet

Mask = 255.255.255.0

79xx NTU Backplane Address = 126.35.50.17

79xx

79xx

79xx 79xx

79xx

79xx

99-16617

 

Figure 5-1. Peer IP Address Assignments

5-2

May 2002

8700-A2-GB20-40

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Paradyne 8779, U8777 manual IP Addressing Example, All Configurations, Appendix A, Configuration Options