this post was submitted on 04 Jul 2024
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I hate how media describes VPN. It doesn’t “change your IP address” but rather makes your traffic appear to come from a remote endpoint when configured to do so.
I use VPNs all the time that don’t “change my IP address” at all.
They do change the source IP from the perspective of the host receiving your connection.
But there's an important difference here. Sometimes you want the IP address to look like it's coming from a different location because of region locking. Eg Netflix.
Other times you want the origin IP hiding along the data stream to stop snoopers. eg the government.
So changing your IP from the perspective of the receiver isn't much use if you're trying to hide from the government. People who are not very tech savvy may not necessarily realize this important distinction until it's too late. So it's best to explain the difference.
If you’re routing internet traffic via the VPN tunnel then yes of course that’s true.
But you can be connected to a VPN and only direct specific subnets (like the traditional office network example) to it. You’re not always forced to use it as a default route (using the term loosely here).
That's pedantry that serves zero purpose to the story. It's an article for layman, and the only reason to even bring up a VPN is to mention Apple listening to the Kremlin. It serves little to no narrative purpose.
And the VPNs that people use for these purposes usually tunnel all traffic unless individual programs have been explicitly added to a list.
Maybe it is pedantry, but people writing for the general public should explain things well. Why didn’t they just write:
This way you’re not lying and saying a VPN “changes your IP address” which is both not accurate nor easily digestible for the general public. That part specifically is what gets me.
I don't get it, why else would you use VPN if not to spoof your IP address?
To access a different LAN, e.g. a network at work, or your NAS at home. You configure it so your internet traffic still goes over your normal connection but only the LAN requests to the specific subnet goes over the VPN. This was the original use case they were built for (roadwarrior businessmen logging into their corporate portal from a hotel or whatever)
This is the right answer.
when you want to be on a different local network?
You won’t be “on a different local network,” you’ll be accessing specific networks (or subnets) via the VPN tunnel rather than some other network interface on your machine.
So if you’re at home with a 192.168.0.0/24 network and you want to access an office resource on the 192.168.141.0/24 network, likely what will happen is your machine with have a route to 192.168.131.0/24 via the network the VPN provides (let’s just say 10.0.0.1).
Depending on how everything’s configured, the server you’re accessing might see it coming from the VPN server (masquerade) or it could very well be passed on as-is (which would only work if the server has a routing table back to you via the VPN).
Typically when people use VPNs for internet access, the traffic is sent out masqueraded so that it appears to come from the VPN’s WAN IP address.
To ensure your unecrypted data(which is rare these days) is not clear-text in an untrusted network such as public wifi.
Yes but this isn’t the point I’m getting at — VPN doesn’t always mean you’re sending all your Internet traffic down the tunnel. You can choose to configure only specific networks to use the VPN tunnel.
To not disclose to your internet provider the sites you are visiting.
Yes but this isn’t the point I’m getting at — VPN doesn’t always mean you’re sending all your Internet traffic down the tunnel. You can choose to configure only specific networks to use the VPN tunnel.
That's the case of corporate VPN I believe
It’s the case of every VPN, it’s just that typically people choose to send all their traffic through it rather than that destined to specific networks.
Are you talking about split tunneling?
Because last I heard it was considered bad as it was haibg a hard time deciding what traffic to tunnel and what traffic to not
It’s only bad if you’re splitting it incorrectly lol
Thanks Cpt. Obvious.
It doesn’t seem obvious to you who claims it’s “bad” because it “has a hard time deciding.” It can decide, guess how? Configuration