Nighthawk M2 IP Passthrough Netmask incorrect

[nasgulch]

I am using my M2 with IP Passthrough activated to provide the WAN to another router. Receiving Router is set to DHCP for the WAN port.

The M2 shows the proper IP adress coming from my ISP with a subnet mask of 255.255.255.0 

Unfortunately when it arrives to the router it shows mithg the right adress but a subnet mask of 255.255.255.255

IP received by RouterIP as seen on M2

I can fix it by setting a static IP with the proper mask in the router. But since my ISP changes the public IP every so often, it is not reliable.

Is there a way to overwrite the IP passthrough Address Netmask in the M2?

M2 is on latest FW 24_10.17.08.00

Any help is appreciated

Erik

Any help is appreicated

[nasgulch]

I just realized that the M5 Nighthalwk has a paramter in the settings for IP Passthrough called LTE Subnet Mask

Can we expect an ulgrade of FW for the M2?

That would be the answer to my issue

Erik