Paradyne 317x E1 manual IP Network Addressing Scenario F, Overview

IP Network Addressing Scenario F

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-1 IP Network Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-1

Overview

This appendix describes a means of configuring 31xx Series devices in an Internet Protocol (IP) network to provide SNMP connectivity to a network management system (NMS). Since there are many possible network addressing schemes, this appendix describes an addressing scheme for a typical customer network scenario. This appendix is not intended to be an IP addressing or routing tutorial, and a basic understanding of IP and 31xx Series features is assumed.

IP Network Addressing

The IP network addressing scenario (Figure F-1) consists of a series of standalone 31xx Series devices daisy chained together, with remotes connected via the FDL. In this scenario, all 31xx Series devices are on the same subnet (135.18.1.0). The subnet mask for each device is FF.FF.FF.00. A static route is set in the NMS host to subnet 135.18.1.0.

The following notes apply to this scenario:

•Connections to remote devices may be via EDL or FDL; however, the FDL is only available on full E1 links (not fractional E1s). Check with the service provider to be sure that the FDL is end-to-end (i.e., not terminated at an intermediate point within the network).

•Interconnected 31xx Series devices automatically pass routing information between them; however, a static route to the subnet(s) must be set in the routing table of the NMS host. This route uses the 31xx Series device connected to the LAN (via the LAN Adapter), or the NMS (via a direct PPP or SLIP connection) as a gateway to the subnet(s). In all instances, the addressing scheme presented works for both the LAN and the direct connections.

•Although routing table entries are maintained automatically by 31xx Series devices, without the need for user configuration, only a maximum of 100 routes is supported for a given device.

•The choice of a host address within a given subnet is completely arbitrary. Choose any legal host address for a given subnet, without regard to the local or remote devices.

•Although the default route (to the NMS) is configurable for all devices, only devices that have a direct external connection to an NMS (via the COM or AUX ports) need a default route set. In the following example, the default port (COM or AUX) is set in the device connected to the LAN Adapter.

3170-A2-GB20-20 December 1996 F-1