Does FX30 support IP Passthrough or Bridge configurations?

[eddie435]

I have a FX30 modem and would like to set IP passthrough to pass the public IPv4 address through to the connected device. Is that possible? Any info on the process is appreciated. Thanks!

Eddie

[jyijyi]

Have you tried the MBPL with rmnet interface in at!usbcomp ?

Example on establishing data connection by AT!SCACT via MBPL R20 driver

Here is an example to establish data connection by AT!SCACT via MBPL R20 driver: Module: WP7609 FW: R13 MBPL: R20 PC Environment: Ubuntu 18 need to install the MBPL R20 driver for qmi_wwan and qcserial (MBPL_Drivers_USB_R20_ENG1-src.tar.gz) avoid the Ubuntu changing the network name: ln -s /dev/null /etc/systemd/network/99-default.link sudo apt-get install libqmi-utils sudo apt-get install udhcpc now insert the USB to PC sudo chmod 777 /sys/class/net/wwan0/qmi/raw_ip …

[eddie435]

jyijyi,

I’m not sure your example is what I need. I’m trying to pass the public IP from rmnet_data0 to a device connected to eth0.

Any thoughts? Thanks

Eddie

[eddie435]

jyijyi,

I noticed that after connecting the USB from the FX30 to my computer, I get a network adaptor called “Mobile Broadband adapter Cellular 2”, and it’s assigned the external public IP from the modem (rmnet_data0).

What I would like to do is to assign that IP to the device connected to eth0 instead. Are there any examples of that?

Thanks

Eddie

[jyijyi]

here is an example to share data connection with WP76/WP77 ECM interface

Using fx30, internet router

You can share the data connection with USB ECM interface: Fx30 side: echo > /etc/resolv.conf cm data connect & iptables --flush iptables -t nat -A POSTROUTING --out-interface rmnet0 -j MASQUERADE iptables -A FORWARD -o usb0 -i rmnet0 -m state --state RELATED,ESTABLISHED -j ACCEPT iptables -A FORWARD -i usb0 -o rmnet0 -j ACCEPT echo 1 > /proc/sys/net/ipv4/ip_forward cat /etc/resolv.conf nameserver 10.144.148.1 nameserver 10.145.148.5 PC side: sudo route add default gw 192.168.2.2 us…

You might change the ecm interface to eth0 interface.

@eddie435

What I would like to do is to assign that IP to the device connected to eth0 instead. Are there any examples of that?

The example above is using NAT, so it is using private IP instead of the external IP address you obtained.
I guess you might need to study some bridge command in linux if you want the eth0 to use the external IP address.

“Mobile Broadband adapter Cellular 2” is directly accessing the RMNET interface of module, so it is different from eth0.