User`s manual

1b - Assign IP addresses to the CR-SEHs using IP Hunter
When connecting the CR-SEH to a network without a DHCP or BOOTP server,
or in situations where they will not be used to set the IP addresses, the CR-SEH
CD has a device detection and IP setting utility named IP Hunter. This utility will
detect all Cirronet Ethernet devices on the local network, even those with no IP
address. For those units without an IP address, IP Hunter can set the IP
address and then open a browser session with that device to allow for further
configuration. The IP Hunter will display devices that already have IP addresses
and will open browser sessions with those units, but will not change the IP
address already set.
If the PC is not connected to the CR-SEH or an active network, the Ethernet
adapter will not be active. Depending on the PC, it can take up to 30 seconds
once the PC is connected to an active network or CR-SEH for the PCs network
card to become active. After verifying that the computer’s Ethernet Link LED is
on, open IP Hunter by double-clicking on the file “IPHunter.exe” on the CR-SEH
CD. Click on the Search button to begin the search for Cirronet devices; only
Cirronet Ethernet devices will be displayed. Ethernet devices from other manu-
facturers will not be displayed, even if they have no IP address.
Any Cirronet devices found will be displayed on the screen along with the IP
address (if any), the netmask, the MAC address and the DHCP host name.
Double-clicking on a device with an IP address of 0.0.0.0 will bring up the IP
change dialog box. Enter the desired IP address and the default netmask will
automatically be entered. A new Host Name may be entered if desired;
however, the MAC Address cannot be changed.
Note: IPHunter will allow any IP address to be set. If an IP adress is set that is
not on the same subnet as the PC running IP Hunter, communications with that
CR-SEH will no longer be possible from that PC.
Click OK and the IP address will be entered in the CR-SEH and displayed in the
IP Hunter window.
2- Set one CR-SEH as the Master
When using CR-SEHs, one unit - and only one - must be set as the “Master”. All
other CR-SEHs must be set as “Slaves”. When shipped from the factory, all
CR-SEHs are set as Slaves. In typical installations, the Master CR-SEH is the
CR-SEH connected to the central Ethernet network.
HTML Setup (Browser Session)
Double-click on the IP number in IP Hunter or enter the IP Address in your
browser to launch an HTML setup session. A login screen will display. Enter the
default Username, "admin" and default Password, "Cirronet" (case sensitive).
Click on OK and the main browser window will display. The Confiuration
Parameters will appear on the left browser pane with the change/edit fields
displaying in the main browser window (right pane). Click on the Bridge Settings
link in the left browser pane.
Bridge Settings
Click on the drop down arrow to the right of the Mode: field and select either
“Master” or “Slave”. Remember that one - and only one - CR-SEH may be set
as the Master.
Filtering
The CR-SEH includes a provision for the filtering of multicast and broadcast
packets. In many networks, there are sufficient multicast and/or broadcast pack-
ets to slow the overall performance of the CR-SEH. Based on the number of
broadcast and multicast packets, they can consume a substantial amount of the
RF bandwidth. By turning filtering on, the CR-SEH will ignore these packets and
limit transmission to packets with specific device addresses. In some instances,
it is desirable to have the CR-SEH transmit the multicast and broadcast pack-
ets; in such cases, filtering should be disabled. Note that filtering broadcast
packets also filters multicast packets but filtering multicast packets does not filter
broadcast packets.
If requiring a login is desired, select “Yes” from the drop down menu and the
Username/Access-code, Password and (Password) Verify fields will become
active. If requiring a login is not desired, selecting No grays out the fields and
renders them inactive.
Click on Apply then click on Save Settings to store the system configuration
changes in non-volatile FLASH memory. The user may either click on “Reset” to
reboot the processor, click on “Logout” to end the browser session or simply
close the browser window.
3 - Run a communications test.
To run a communications test, connect the Master CR-SEH to the central
network. The Slave CR-SEH can be connected to the remote device, network
segment or be left unconnected to any network. With power applied to both
CR-SEHs - and after the power on reset cycle has been completed - verify that
the Ethernet Link LED on the Master CR-SEH is on. This indicates a valid