[SCION] Routing in and out of SCION, and commercial providers of VPN services

Adrian Perrig perrig at gmail.com
Mon Feb 1 11:04:26 CET 2021

Hi Chris

Very good point! We are currently working on an infrastructure that enables
SCION to interface with the Internet as you describe. We hope to announce a
first prototype by the end of March. Please stay tuned!

On Fri, Jan 29, 2021 at 11:16 AM Chris Adams <
chris at thegreenwebfoundation.org> wrote:

> Hi there,
> I’m trying get a better understanding of how SCION works, and where the
> technology might fit into common tools I might already use.
> For example, after reading over the docs, I get the idea I might be able
> to use this like I use a VPN at present, where from my machine my traffic
> heads to to  "up" into SCION, the same way I might pay to use something
> like Tailscale.
> From there I might assume that my packets would be sent along the SCION
> internet, and my destination is ‘inside' the SCION network, all is well.
> What about if I want to connect to another host, on the regular internet,
> but I want as much of it to go through SCION as possible?
> I’ve been looking through the docs and presentations, and I think I
> understand how the approach for routing packets works differently within
> SCION (with the route preferences stored in the header rather than relying
> on each hop), but I don't think I understand what happens once you have
> reached the last hop.
> Are the original packets with the destination encapsulated at the point
> that the data packet joins SCION via the attachment point?
> If that's the case, I assume once you’ve reached the hop ‘closest’ to the
> destination, responsibility would go back to the ‘regular' internet at that
> point, with BGP and routing tables in use again, but I’m struggling to find
> the appropriate part of the docs or the book that explains this.
> Can a kind soul point me towards this part?
> Commercial providers of VPNs or connectivity
> Also, where would I find commercial providers of some kind off VPN or
> networking service for this?
> Chris
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