So why do this when I could just use bridging and WIFI hotspot? For one, this is a much simpler configuration than having another hop via a system bridging the connection. What was the device I was using to tether you ask? Why it was a spare Nexus 6 with an unlimited plan □ĭid it actually work when I plugged it in via USB?Īnd once the phone was recognized, simply select ‘Connect’ and sure enough, internet service came right up! When you enable WWAN, you will see an additional interface added: There are several additional settings depending on the type of modem – username\password, SIM PIN code, APN, initialization strings, etc – but these are not needed for this configuration. Note that the default configuration for the WWAN interface (screenshot above) is Dial-up PPP – for USB tethering this needs to be switched to Network Adapter (DHCP) as the device gives out an internal hotspot IP address. So my plan (yes) was to use USB tethering rather than WIFI hotspot, and to be honest, I was pretty skeptical that this was even going to work, but could always go back to wireless\ethernet bridging if needed. Note that WWAN is disabled by default and will confirm that you want to enable the feature. Then I started digging in the XG UI and found there is a wireless WAN\LTE capability built right in! This worked surprisingly well, but I didn’t really like having another system between the firewall and the hotspot. Then I had the idea to use a spare system I had and bridge the wireless hotspot to ethernet connection and plug that into the firewall. The solution to this was to use my hotspot…but that only goes so far since I’m only connecting my workstation or laptop. So everything was going great as far as internet service was concerned…until…you know…hurricane Irma happened. That has since changed, and the XG handles multiple internet connection failover well with little to no interruption in service. As you may also know, I use the Sophos XG firewall home edition as a full-featured firewall and internet gateway – the conversion from Sophos UTM to XG was a bit tricky due to the UI of XG being…let’s just say not that great. I work a good bit from my home office so obviously internet access is pretty important – so important that I have 2 carriers: Comcast via coax and AT&T via bonded pair DSL.
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