ZyXEL Communications ZyAIR Guide de l'utilisateur télécharger pdf (Page 186)

ZyAIR B-3000 User’s Guide

185 Appendix F IP Address Assignment Conflicts

Figure 130 IP Address Conflicts: Case B

To solve this problem, make sure the ZyAIR LAN IP address is not in the DHCP IP address

pool.

Case C: The Subscriber IP address is the same as the IP

address of a network device

The following figure depicts an example where the subscriber IP address is the same as the IP

address of a network device not attached to the ZyAIR.

Figure 131 IP Address Conflicts: Case C

You must set the ZyAIR to use different LAN and WAN IP addresses on different subnets if

you enable DHCP server on the ZyAIR. For example, you set the WAN IP address to

192.59.1.1 and the LAN IP address to 10.59.1.1. Otherwise, It is recommended the ZyAIR use

a public WAN IP address.

Case D: Two or more subscribers have the same IP address.

By converting all private IP addresses to the WAN IP address, the ZyAIR allows subscribers

with different network configurations to access the Internet. However, there are situations

where two or more subscribers are using the same private IP address. This may happen when a

subscriber is configured to use a static (or fixed) IP address that is the same as the IP address

the ZyAIR DHCP server assigns to another subscriber acting as a DHCP client.

In this case, the subscribers are not able to access the Internet.

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ZyXEL Communications ZyAIR Guide de l'utilisateur Page 186