Any experience with comparing connectivity with OpenVPN vs ZeroTier when on public Wifi?

looney2ns

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Ok, so I'm running into more public wifi spots, grocery stores, restaurants, etc that either OpenVPN can't connect back home or it connects, but the link can't be used due to rules set on the premises routing equipment.

Has anyone used both and found that ZeroTier works in more locations typically?
Thanks.
 

tangent

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First you'll need to get past the captive portal (agreeing to TOS or otherwise logging in).

Assuming you've done that and open vpn won't connect you might try using a different port for your openvpn server.
 

tangent

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What type of phone and what VPN client app (there are multiple openvpn apps, I'm guessing the official android app)? Can you get the client connection log to see what it says?
 

jmltech

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I had the same concern for using zerotier, and not wanting to use a vpn with holes through my router. I had a bunch of errands around my local town (small mountain town in Colorado), so i decided to test on my iphone (verizon) that has zerotier installed …

totally open public wifi: public government building. Library, grocery store, city park - no issues
Open with portal acceptance: sandwich shop, police station (in parking lot), coffee house - no issues
public wifi with password: another sandwich shop, anytime fitness gym, true value hardware store, another small grocery store - no issues (although true value took three tries to connect on zerotier. Once connected blue iris app worked as normal)

I had also used zerotier previously using a a captive portal at an RV campground. No issues and blue iris app worked normally. (Captive meaning portal login page comes up, you agree to their service and can purchase extra speed ($5.00) for your one device for 24 hours).

Zerotier also has worked fine using the blue iris app on verizon throughout a few surrounding states.
 

tigerwillow1

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Since zerotier is P2P, shouldn't it be expected to work anywhere web browsing works?
 

looney2ns

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What type of phone and what VPN client app (there are multiple openvpn apps, I'm guessing the official android app)? Can you get the client connection log to see what it says?
OpenVPN Connect on a Pixel 3a XL Android 12.
I think I tried the 443 port a while back and it didn't help much, but I've slept since then and will try it again.

I've also now have Zerotier set up and configured on my BI server and phone, so next time I'm out I'll give both a whirl.
 

bp2008

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Since zerotier is P2P, shouldn't it be expected to work anywhere web browsing works?
No, zerotier traffic does not look like ordinary web browsing traffic, not at all. But an OpenVPN server listening on port 443 using the TCP protocol (not UDP) does look a lot like standard HTTPS web traffic and therefore it is most likely to be allowed.
 

00Buck

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I had OpenVPN set up first and then set up zerotier and I can use either one when I am out. I haven't been anywhere that OpenVPN was not working to see if zerotier did.
 
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