this post was submitted on 09 Jun 2024
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19
[Question] Network-Wide Resolution & Routing of Non-Standard Traffic? (leminal.space)
submitted 5 months ago by [email protected] to c/[email protected]
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TL; DR: Is it possible (and if so, desirable) to configure my OPNsense router to handle non-standard traffic instead of needing to configure each client device manually? Examples of what I mean by 'non-standard traffic' include Handshake, I2P, ZeroNet, and Tor.

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[–] [email protected] 2 points 5 months ago (2 children)

Not sure if you mean to run the service on the FW or what 'handle' means here. If you have a second box though it would be easy enough to run all those services on a distinct server and then route their relevant ports through there with a policy based route on the firewall. That way you would only have to set up one for node for example and just have the client machines use that.

[–] [email protected] 1 points 5 months ago (1 children)

Sorry, I should clarify. I'm hoping to possibly have a setup like this:

  1. Browser makes a request to an eepsite
  2. The router sees the request is to a domain ending in .i2p and forwards the request to a service running on the router
  3. That service then performs the necessary encryption and establishes connection with the I2P network.

I'd imagine it's a similar process for other protocols and networks. No idea if this is possible or desirable.

[–] [email protected] 2 points 5 months ago

https://www.grepular.com/Transparent_Access_to_I2P_eepSites

Something like this makes logical sense, but can't say I've ever tried such a feat. As a general rule though keeping the gateway/firewall free of extraneous software is a good practice just to limit the potential attack surface. If you try it I'd create a dedicated VM somewhere to host the i2p/Tor gateway from to keep it off the network edge directly.