[MLB-WIRELESS] MW Intranet DNS & Redirection

Richard Van Orsouw Richard.Van.Orsouw at optus.com.au
Fri Nov 28 08:37:18 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?


> ----------
> 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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