Security Basics mailing list archives

Re: Home wireless free hotspot


From: Dale Stirling <dale () puredistortion com>
Date: Wed, 17 Mar 2010 11:19:06 +1100

John,

I did this myself for some time with wrt54g running openwrt, I did
this to see what people would do with the link.

What I didi was run a DHCP server on the WRT54g and nat the DHCP
subnet to an IP (this then passed through another server where I was
running stuff to look at the traffic) and then ran that straight into
the back of my Cisco router on a second subnet and the 2 were made
unable to communicate.

My intention was if people were going to be a pain about it and start
abusing the link I would rate limit the link so it would not smash my
data plan and hopefuly annoy heavy downloaders to go find another
place.

When I did this I was living across the way from a heritage park land
and its car park in the south easten suburbs of Melbourne Australia. I
was using a 5db omni antenna. I only ever had people logging on to
check email send mail, and mild web usage. I had never had any heavy
users the most I ever had was some one download 25MB in one session
most of which was email.

Good luck and bee careful, I would make sure you have a way to monitor
the types of traffic that is on this AP and have a strategy for how to
handle any heavy users.

Dale

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