IPScan Probe 600 User’s Guide
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3.2. Q&A
When you get some troubles running the IPScan Probe, see the Questions and Answers down
below.
Q) There is an unexpected IP/MAC blocking by IPScan when the [IP block] function has
been applied on the network.
A)
Please follow the steps down below to prevent having other problems.
①
To disconnect IPScan Probe from the Server, connect to the Probe using [Telnet], and change its
IP address to other unused IP address, or execute [Safety Mode] from the Console.
②
Although the Probe does not send any blocking packet any more, if still the blocking has not
been stopped, execute ‘arp –d’ command on MS-DOS mode from the blocked computer.
③
Look at the event log files to find out what kind of blocking has been made. If you applied
[Apply IP Reg. Blocking] on the network devices, please you make sure to remove the [Apply
IP Reg. Blocking] function.
④
To find out the certain cause of the problem, please send the event logs for the day to
[email protected].
Q) IPScan cannot execute its blocking function.
A)
Please check the set configuration of the Console by each case.
①
If [Safety Mode] is on, all the configuration you have made is not applied to the network in real.
It is just a simulation mode.
②
If the Probe cannot block MAC address, it could be the reason that some of switches or routers
have low performance to update its MAC table, thus even if the MAC has been blocked by the
Probe, the switch or router still has the MAC table for the blocked MAC address as a live
address. You can simply apply [Apply MAC Reg. Blocking] to that switch or router IP address.
The Probe will send MAC information to that switch to change the MAC table immediately.
③
If IPScan Console’s current IP address is repeatedly On and Off on the Console view, the
connection between IPScan Server and the Probe is unstable. In this case, you should check the
network condition physically and logically.
Q) The Probe cannot connect to IPScan Server.
A)
Please check the cases down below.
①
Try Ping or Telnet to connect to IPScan Server. If the round trip time result of ping to the Server
shows over 100ms, and that of ping to other IP addresses on the same IP range shows less than
10ms, it could be considered the Probe is worn.
②
Check the Probe’s IP address has been configured correctly.
③
Check the Windows Firewall of the Server PC that the ports for communication between the
IPScan Server and the Probe should be assigned. Otherwise, define the ports numbers from
30000 to 30005 on the
Exceptions list of Windows Firewall.
If you are not satisfied with this Q&A, or have other problems, please do not hesitate to contact your sales
representative or our technical support team ([email protected] , Tel: 82-2-3412-9700).
