Huawei M150-2 hilink (E3372h)

I have Huawei M150-2 which is also E3372h
why i cant assign this virtual interface to any firewall zone?
maybe i dont have to ? Because this interface has been created by 3g NCM interface automaticly

if i click EDIT button there is nothing but DISSMIS and SAVE buttons

ifconfig


wwan0     Link encap:Ethernet  HWaddr 00:1E:10:1F:00:00
          inet addr:100.67.78.113  Bcast:100.67.78.115  Mask:255.255.255.252
          inet6 addr: fe80::21e:10ff:fe1f:0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:4768 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8030 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1353536 (1.2 MiB)  TX bytes:10240513 (9.7 MiB)

and dmesg

[    5.174617] usbcore: registered new interface driver usbfs
[    5.185705] usbcore: registered new interface driver hub
[    5.196475] usbcore: registered new device driver usb
[    5.249456] phy phy-usbphy.0: remote usb device wakeup disabled
[    5.261281] phy phy-usbphy.0: UTMI 16bit 30MHz
[    5.627474] usb 1-1: new high-speed USB device number 2 using ehci-platform
[   16.488750] usbcore: registered new interface driver cdc_wdm
[   16.605421] usbcore: registered new interface driver ipheth
[   16.902573] usbcore: registered new interface driver usbserial
[   16.914423] usbcore: registered new interface driver usbserial_generic
[   16.927604] usbserial: USB Serial support registered for generic
[   17.495802] usbcore: registered new interface driver cdc_ether
[   17.545849] usbcore: registered new interface driver cdc_ncm
[   17.810057] huawei_cdc_ncm 1-1:1.2 wwan0: register 'huawei_cdc_ncm' at usb-101c0000.ehci-1, Huawei CDC NCM device, 00:1e:10:1f:00:00
[   17.834184] usbcore: registered new interface driver huawei_cdc_ncm
[   18.074851] usbcore: registered new interface driver qmi_wwan
[   18.106238] usbcore: registered new interface driver rndis_host
[   18.186088] usbcore: registered new interface driver option
[   18.197410] usbserial: USB Serial support registered for GSM modem (1-port)
[   18.224479] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB0
[   18.250974] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB1