Free wireless network (access point, router, transparent HTTP proxy setup)

Giorgos Keramidas keramida at
Sat Aug 9 13:45:46 UTC 2008

On Sat, 09 Aug 2008 13:54:04 +0200, Svein Halvor Halvorsen <svein.h at> wrote:
> Hello, fellow FreeBSD-ers!
> I'd like to a good neighbor and share my DSL line and set up an
> unencrypted free wireless access point. I often find myself wanting
> more free access points around the city, so I thought I'd stand up
> as a good example for others :-)
> I want people to know that they can use the network (easy, use ssid
> "free internet"), but I want them to know that they should be nice,
> and it's meant for casual browsing, and that misuse will cause a ban.
> So, what I'd like:
> 1) Setup a wireless network card in infrastructure mode, I think.
> 2) Setup a DHCP server and DNS forwarder on this interface
> 3) Setup routing from one interface to my other network
> 4) Use a firewall to close down lots of stuff, maybe also limit
> bandwith per mac-address, and a way to deny access to certain NICs.
> 5) Insert a message in all text/html over HTTP, basically saying:
> "Hi, guest! Feel free to use our free internet, but be nice!" And a
> close-button, which I guess needs to send a POST to a http server as
> well, and that I need to record this action in a database, and use
> the same database to dynamically insert the message above or not.

This sounds like too much work for a doubtful amount of gain.  It is
probably a lot easier to use ipfw or pf+altq to rate limit the bandwidth
"others" can use :)

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