Appendix B: IP-Passthrough Example (Page 2 of 2)
Step 3
Now IP-Passthrough can be enabled on the BulletPlus. Under the
Carrier > Settings tab, IP-Passthrough can be found. To enable this
feature, select "Ethernet" from the drop down box. Once the changes
are applied, whichever device is physically connected to the LAN
RJ45 port, will dynamically be assigned the WAN IP Address. In this
example, this would be 74.198.186.193.
The default IP address of 192.168.168.1 on the LAN is no longer
available, but it is still possible to access and configure the BulletPlus
on the LAN side, by using the X.X.X.1 IP Address, where the first 3
octets of the WAN IP are used in place of the X's. (e.g. 74.198.186.1,
and remember the HTTP port in this example was changed to 8080).
The firewall must be configured and/or rules must be created to
allow Carrier traffic. See Firewall Example for more information.
Step 4
Attach the remote device or PC to the RJ45 port of the BulletPlus. The
end device has to be set up for DHCP to get an IP address from the
BulletPlus. In the test/example setup we can verify this by looking at the
current IP address. In the screenshot to the right we can see that the
Laptop connected to the BulletPlus has a IP Address of
74.198.186.193, which is the IP address assign by the cellular carrier
for the modem.
Step 5 (Optional)
IP-Passthrough operation can also be verified in the BulletPlus. Once IP
-Passthrough is enabled you can access the BulletPlus WebUI by one
of the following methods:
Once logged in, navigate to the Carrier > Status page. Under
WAN IP Address it should look something like shown in the
image to the right, 74.198.186.193 on LAN.
Step 6
The last step is to verify the remote device can be accessed. In this example a PC is connected to the RJ45 port of the
BulletPlus. On this PC a simple apache web server is running to illustrate a functioning system. On a remote PC, enter
the WAN IP Address of the BulletPlus into a web browser. As seen below, when the IP Address of the BulletPlus is
entered, the data is passed through to the attached PC. The screen shot below shows that our test setup was
successful.
© Microhard Systems Inc.
Remotely on the WAN side (usually the internet), using the WAN IP, and the port specified for HTTP
operation (or, if enabled, by using the HTTPS (443) ports), in this example with would be
74.198.186.193:8080.
On the LAN side, by entering in the first 3 octets of the WAN IP and .1 for the fourth, so in our example
74.198.186.1:8080.
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