What a coincidence "4G backup" is the phrase of the day :-)

David, FYI there is an optional antenna that may interest you "Netgear 6000450 
MIMO Antenna" https://www.amazon.com/dp/B00DN3J03O/

Lonnie



> On May 16, 2018, at 8:03 PM, David Kerr <da...@kerr.net> wrote:
> 
> Thanks to last nights storm that hit the northeast, I spent what spare time I 
> had today investigating WAN failover.  It took a while to get working, though 
> exactly why I don't know because what I ended up with as a working config is 
> exactly what Lonnie has documented!  I suspect my testing was impacted by 
> trying to do it from my basement (where I get one bar of 4G on AT&T, (aka 
> 3.5G in the rest of the world, not LTE).  Upstairs I get a decent 3 bars LTE.
> 
> I found an old TP-LINK WiFi in a drawer which supports bridge mode.  So what 
> I have is APU2 eth2 -> TL-WR702N -> iPhone -> AT&T.  As  I write this it is 
> my active connection as power and internet are not back yet.  This is okay as 
> an occasional use setup as the WiFi link to iPhone does not appear to connect 
> automatically. I seem to need to go into the router (bridge) web interface 
> and scan for the iPhone hotspot and connect to it... the issue seams to be 
> that the iPhone can decide to change WiFi channel, and the router wants me to 
> select a specific channel (it has an auto setting, but doesn't seem to like 
> it if I select that -- though further testing required).
> 
> Which got me googling and I landed on the same Netgear modem.  They have a 
> LB1121 version (adds PoE support, you need to buy your own PoE injector) 
> which I find attractive because PoE would give me flexibility to place the 
> modem anywhere in my house and have it powered from my large UPS that 
> Astlinux is connected to.  So for as long as I have enough battery to power 
> AstLinux, I will have a cell connection.  I can last about 8 hours on that 
> UPS.
> 
> So much now-a-days depends on a network connection that I am tempted to buy.
> 
> Now I would need to figure out entries for the failover script.  For example, 
> I would want to block all traffic from my NAS (which has online backup 
> setup), so some firewall rules to block all traffic from certain internal 
> IP's.  I might also want to block selected ports which I know are used for an 
> online backup that is installed on my work laptop.  Would be nice if I could 
> block youtube too (kids, you know), and maybe dropbox, etc.  Basically I want 
> to keep network activity to the essentials.  Any ideas?
> 
> David
> 
> On Wed, May 16, 2018 at 6:15 PM, Lonnie Abelbeck <li...@lonnie.abelbeck.com> 
> wrote:
> > The Netgear LB1120 didn't specifically mention it can operate in Bridge 
> > Mode which is a must for me. I had trouble finding many that could actually.
> 
> It appears the Netgear LB1120 does with a bug fixed in firmware update: 
> NTG9X07C_12.09.05.27
> 
> https://community.netgear.com/t5/Mobile-Routers-Hotspots-Modems/LB1120-Bridge-Mode-No-Connectivity/m-p/1404666#M3431
> 
> Though if all your traffic is over a WireGuard VPN, Bridge Mode is not as 
> much of an issue, but Bridge Mode is best.
> 
> Lonnie
> 
> 
> 
> 
> > On May 16, 2018, at 5:04 PM, Michael Knill 
> > <michael.kn...@ipcsolutions.com.au> wrote:
> > 
> > Thanks Lonnie
> > 
> > The Netgear LB1120 didn't specifically mention it can operate in Bridge 
> > Mode which is a must for me. I had trouble finding many that could actually.
> > Whoops WireGuard VPN. My bad. Im looking forward to testing it out.
> > 
> > Regards
> > Michael Knill
> > 
> > On 17/5/18, 7:52 am, "Lonnie Abelbeck" <li...@lonnie.abelbeck.com> wrote:
> > 
> >    Hi Michael,
> > 
> >    Very interesting, should work ... as usual the devil is in the detail.
> > 
> >    I would use a WireGuard VPN to utilize static addresses across your 
> > AstLinux box network.  Works nicely for me.
> > 
> >    I did a quick search and the Netgear LB1120 4G LTE Modem ($95 USD) is an 
> > all in one box with a 4G/LTE radio included, no USB dongles required.  The 
> > Amazon reviews are mostly good, no idea if your carriers support it.  Just 
> > the idea if a simple box with one NIC seems like a good KISS solution.  
> > There may be other "4G LTE Modem" devices out there as well.
> > 
> >    Here in the US this 4G/LTE connection can get expensive with a lot of 
> > data over it.
> > 
> >    Sounds fun to test.
> > 
> >    Lonnie
> > 
> > 
> > 
> > 
> > 
> >> On May 16, 2018, at 3:47 PM, Michael Knill 
> >> <michael.kn...@ipcsolutions.com.au> wrote:
> >> 
> >> Hi Group
> >> 
> >> Ok so I am about to start developing a 4G backup solution for my systems 
> >> utilising Astlinux WAN Failover and the Dovado 4G Tiny AC 
> >> (http://www.dovado.com/en/products) operating in bridge mode.
> >> To overcome the hassle of NAT and providing a Public IP on the 4G network, 
> >> I plan on establishing an OpenVPN or Wireline VPN tunnel to another hosted 
> >> Astlinux box via the 4G network. This will give me access to the onsite 
> >> Astlinux box if there is a primary WAN failure and I can also pass voice 
> >> traffic if this is desired.
> >> 
> >> Can anyone see any gotchas with this setup?
> >> 
> >> Regards
> >> Michael Knill
> >> ------------------------------------------------------------------------------
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> > 
> >    
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