[MLB-WIRELESS] MW Intranet DNS & Redirection

andrewg at d2.net.au andrewg at d2.net.au
Fri Nov 28 11:00:20 EST 2003

> Excuse the late reply,
> I'm running a similar setup to Dan ie AP, Omni, DHCP server.
> But I am also having similar problems, whereby I get my DHCP server
> issuing IP address's to hosts who never visit the router address in
> their web browser (using webalizer stats). What we need is
> ipchains/iptables/ipfw to filter port 80 request for a particular subnet
> to automatically take it to a "Welcome to Melbourne Wireless, blah blah
> blah" site which details on how to connect permanently. Once this node
> is permanently connected, that IP address can be taken off the filter. I
> think that people are connecting to my node thinking that they can get
> free internet, but I would like to "educate" them by visiting this
> website. Could some help me out on the iptables/ipchains rules?

Have a look @ nocat auth, it kinda does what you want, and it'll give you
the rules you want... you may need to setup a dummy dns server though, if
they can't resolve names and stuff.

> L8r.
>> ----------
>> From: 	Dan Flett
>> Sent: 	Thursday, 20 November 2003 15:05
>> To: 	Melbourne Wirless
>> Subject: 	[MLB-WIRELESS] MW Intranet DNS & Redirection
>> Hi all,
>> From looking through the Wiki it looks like DNS for the MW network has
>> been discussed at length in the past, but I'm wondering has there been
>> any recent discussion or developments?  I am Node GMR and personally,
>> I can navigate quite well just typing 10.10.x.x numbers into my
>> browser.  I'm just concerned that not being able to type in
>> human-readable names into a browser will make using the network less
>> user-friendly for the less-geeky punters.
>> On a related topic, I run an access point at my node with DHCP.  From
>> looking at the leases log I see that I get the occasional visitor
>> assocating with my AP.  I'm pretty sure that these visitors are either
>> my neighbors' home computers associating by accident, or wardrivers
>> looking for Internet and home networks to probe.  I'm thinking that
>> once they associate, they probably think they have Internet access.
>> So when they're connected they're going to type something like "
>> www.google.com" into their browsers.  And they're going to get a 404
>> error.
>> Is there some way to redirect these requests to my local web page at
>> or any other web page of my choosing?  All these chance
>> associations that people are having with my AP are a great chance to
>> spread the word about Melbourne Wireless and the network.  But I don't
>> think any of them are going to go to the trouble of looking at the
>> default gateway that my DHCP gives them and then typing that address
>> into their browser.  Instead of a 404 I want them to see a web page
>> that explains why they're not seeing Google and tells them what the
>> Melbourne Wireless Intranet is.
>> Cheers,
>> Dan
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