I am trying to add the interface wwan0 to a bridge. Currently I am unable to do that. When I run the command
brctl addif br0 wwan0 can't add wwan0 to bridge br0: Invalid argument
Any ideas why this could be happening?
edit 1: I want to bridge wwan0 which is my 3g cellular dongle and Ethernet eth0.
I run the below command to get my wwan0 network activated.
udhcpc -n -i wwan0
Once I have successfully completed that.
I run the commands shown below.
brctl addbr br0
brctl addif br0 eth0
The above commands complete without any issues. Then I try running
brctl addif br0 wwan0
thats when I get the error
can't add wwan0 to bridge br0: Invalid argument
I am using a kernel version of 4.19