Duplicate ip address detection, English – Schneider Electric TSXETG100 User Manual

Page 6

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ConneXium

Ethernet Gateway

63230-319-211A1

Setup

2/2006

© 2006 Schneider Electric. All Rights Reserved.

6

ENGLISH

Duplicate IP Address Detection

While connected to your network, the ETG publishes its IP address. To
avoid any duplicate IP address conflicts, the ETG uses the Address
Resolution Protocol (ARP) to see if any other device on your network is
using the same IP address. Table 3 below explains how the ETG handles a
duplicate IP address when it is detected.

Table 3:

Duplicate IP Detection Scenarios

Scenario

Duplicate IP Detected

Power/Status LED

Boot Process /
Power Restore

Reverts to the default ETG IP
address, subnet mask, and gateway
address. ARP requests are sent every
15 seconds until the IP address is
available. When the IP address
becomes available, the ETG will use
it.

Four blinks, pause pattern

Ethernet Link Detected

Manual Address Change

ETG keeps it’s previous IP address
and displays a message indicating
that the IP address is already in use
by another device.

Receives an ARP request Reverts to the default ETG IP

address, subnet mask, and gateway
address if a connected device sends
four ARP requests for the ETG’s IP
address. The ETG will send ARP
requests every 15 seconds until the
IP address is available again. When
the IP address becomes available,
the ETG will use it.

Four blinks, pause pattern

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