Switching default internet access interface

IOTrav

Hey everyone,

I'm working with an Onion Omega2S+. I have it connected to a Sara R410 module which is working great. However I'd like to programmatically switch my internet connection interface between wireless.sta and the Cellular connection. What is the cleanest way to do this? I've seen mentions of using the option metric to do this but not sure I fully grasp how that works. Any input would be greatly appreciated.

For reference, in case it helps, here is the output from uci show network and uci show wireless

uci show network:
network.loopback=interface
network.loopback.ifname='lo'
network.loopback.proto='static'
network.loopback.ipaddr='127.0.0.1'
network.loopback.netmask='255.0.0.0'
network.globals=globals
network.globals.ula_prefix='fd1d:48c4:7633::/48'
network.wlan=interface
network.wlan.type='bridge'
network.wlan.proto='static'
network.wlan.ipaddr='192.168.3.1'
network.wlan.netmask='255.255.255.0'
network.wlan.ip6assign='60'
network.wwan=interface
network.wwan.ifname='apcli0'
network.wwan.proto='dhcp'
network.wwan.hostname='Cosmic-CB57'
network.wan=interface
network.wan.ifname='eth0'
network.wan.proto='dhcp'
network.hologram=interface
network.hologram.defaultroute='1'
network.hologram.device='/dev/ttyS2'
network.hologram.apn='hologram'
network.hologram.service='umts'
network.hologram.proto='3g'
network.hologram.pppd_options='noipdefault'

uci show wireless:

wireless.radio0=wifi-device
wireless.radio0.type='ralink'
wireless.radio0.variant='mt7628'
wireless.radio0.country='US'
wireless.radio0.hwmode='11g'
wireless.radio0.htmode='HT40'
wireless.radio0.channel='auto'
wireless.radio0.device_mode='apsta'
wireless.radio0.op_mode='preference'
wireless.radio0.disabled='0'
wireless.ap=wifi-iface
wireless.ap.device='radio0'
wireless.ap.mode='ap'
wireless.ap.network='wlan'
wireless.ap.ifname='ra0'
wireless.ap.disabled='0'
wireless.ap.ssid='Cosmic-CB57'
wireless.ap.key='XXXXXXXXX'
wireless.ap.encryption='psk2'
wireless.sta=wifi-iface
wireless.sta.device='radio0'
wireless.sta.mode='sta'
wireless.sta.ifname='apcli0'
wireless.sta.network='wwan'
wireless.sta.led='omega2pro:blue:wifi'
wireless.sta.disabled='0'
wireless.sta.encryption='psk2'
wireless.sta.key='XXXXXXXX'
wireless.sta.ssid='Travis-WiFi'
wireless.@wifi-config[0]=wifi-config
wireless.@wifi-config[0].key='XXXXXXXX'
wireless.@wifi-config[0].ssid='Travis-WiFi'
wireless.@wifi-config[0].encryption='psk2'

IOTrav

So from what I can find it looks like the best way to do this is to set the disabled option property on the network interface.

To switch to Cellular execute commands:

uci set network.hologram.disabled=0
uci set wireless.radio0.disabled=1

To switch to WiFi execute commands:

uci set network.hologram.disabled=1
uci set wireless.radio0.disabled=0

If there is a better way of doing this please let me know.