Page 122 - Configuring data routing on the IPNC

Appendix B: Concepts

Dynamic IP parameter allocation

The IPNC’s mode of operation for the DHCP Server is configured in the System Configuration form box.

With Server selected, IP addresses are allocated both to the LAN using DHCP and to dial in users during PPP link establishment. With Dial-In selected IP addresses are allocated only to dial in users

Dial– In users are allocated address from the LAN1 pool until all addresses are exhausted, at which point addresses from the LAN2 pool will be used.

DHCP Option

Notes

 

 

IP address and Mask

Note 1

Router

System- IP Address (for LAN1)

 

System – IP Address 100Mbps (for LAN2)

 

Note 2

DNS Server Address

System/DNS

 

Note 3

DNS Domain

System/DNS

WINS Server IP Address

System/DNS

WINs Scope

System/DNS

Notes: 1. The IPNC uses its system address+1 for the first IP address allocation (i.e. System IP address is 192.168.42.1 then the first IP address will be 192.168.42.2).

For dial in uses the IPNC allocates the top address as governed by the number set in the Number Of Address on the System Configuration DHCP tab. (i.e. System IP address is 192.168.42.1 and Number Of Address is 200 then the first IP address will be 192.168.42.200)

2.The IPNC offers either the LAN 1 or LAN2 IP address as the router dependant on which interfaces the request is made from.

3This is typically the IP address of an external DNS Server. If this is left blank, the IPNC will offer itself as a DNS server (within DHCP) and will forward DNS requests. The IPNC forward DNS request to the IP address of the DNS server learned in PPP link establishment. This option is controlled in the Service Configuration.

Page 122 - Appendix B: Concepts

INDeX IPNC Cassette Administration Manual

Configuring data routing on the IPNC

38DHB0002UKDD – Issue 7 (22/11/02)

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Avaya 38DHB0002UKDD manual Dynamic IP parameter allocation, Dhcp Option

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