
25
W&T
Assigning the IP address
Subject to error and alteration
2�5 IP Address Conflict Detect
Firmware version 1.31 and higher enables the Com-+
to detect and display an IP address conflict. This function is
deactivated by default and can be activated in the following
menu branch:
SETUP System
Setup TCP/IP
...
IP Address Conflict Detect
...
When the Com-Server is restarted there is an active check for
any address conflicts. During normal running the monito-
ring is passive. Details on this functionality can be found in
RFC5227, IPv4 Address Conflict Detection.
Indication of an address conflict
The Com-+ indicates a detected address conflict by
rapid flashing (approx. 3x/s) of the Error LED. In addition a
message including the competing MAC address is generated
in the Error State (
Setup Port x
r
Port State
r
Error State
).
When using a static IP address the conflict is only indicated.
The Com-Server continues to use this IP address. In a DHCP
environment the Com-Server informs the responsible DHCP
server, resets the IP address and waits for assignment of a
corrected IP address.
1
IP address conflicts generally lead to communication
problems which are difficult to diagnose. Please therefo-
re inform the responsible administrator in such cases.
Summary of Contents for Com-Server++
Page 8: ...W T...
Page 26: ...26 W T Assigning the IP address...
Page 27: ...27 W T Subject to error and alteration 3 Supply voltage Com Server Com Server3x Isolated...
Page 30: ...30 W T Supply voltage...
Page 34: ...34 W T Network interface...
Page 41: ...41 W T Subject to error and alteration 6 LED displays Power Status Error LED Network LEDs...
Page 88: ...88 W T Packetizing serial datagrams...
Page 94: ...94 W T Mode TCP server...
Page 108: ...108 W T Mode TCP client...
Page 122: ...122 W T UDP bus mode...
Page 130: ...130 W T The Windows COM port redirector...
Page 138: ...138 W T Box to Box mode...
Page 154: ...154 W T Mode FTP client...
Page 164: ...164 W T Mode Telnet Client...
Page 182: ...182 W T OPC data transfer...
Page 186: ...186 W T Mode InQueueCopy...