[MLB-WIRELESS] Linksys WRT54G

[Dan Flett]

<Taps fingers together a la Mr Burns> Excellent! </MrBurns>

The cool thing I notice with the WRT54G is, like other SOHO routers, it
has a built-in switch on the LAN interface.  Do you think it is possible
to reverse the firewall/routing behaviour in the unit so that the LAN
interface effectively becomes the WAN interface, and vise-versa?  I ask
because I'm wondering if it's possible to hang two "dumb" APs (eg.
Minitars) off the inbuilt switch and perhaps use alias interfaces for
each of them.

You would then have four interfaces:

The WRT54G's inbuilt wireless interface

The WRT54G's inbuilt WAN interface which we would use as the LAN
interface

Let's call the 3rd interface LAN0:0 which would be a subnet for one of
our dumb APs

Let's call the 4th interface LAN0:1 which would be another subnet for
our other dumb AP.

You could then have a full-on routing node with 3 wireless interfaces,
again with no PC in sight.  And relatively cheap too!

Dan


> -----Original Message-----
> From: owner-melbwireless at wireless.org.au [mailto:owner-
> melbwireless at wireless.org.au] On Behalf Of Ben Grech
> Sent: Tuesday, 1 June 2004 21:16
> To: Melbourne Wireless
> Subject: Re: [MLB-WIRELESS] Linksys WRT54G
> 
> I can't speak highly enough for the WRT54G. I'm about to put one to
use at
> node GPR in Reservoir, and it will allow me to have (as g at z said) a
fully
> functional routing node stuck up a mast and powered via PoE, with no
PC in
> sight.
> 
> Not happy with some of the bugs and excessive features eating up RAM
and
> ROM
> in the Sveasoft firmware, I chose to create my own firmware, only
> implementing the features I need. Now my C skills are nothing to write
> home
> about, but the Linksys code is clean and easily extended. The end
result
> is
> a unit with:
> 
> - OSPF, RIP and static routes
> - routing or bridging between the LAN and wireless interfaces
> - wireless interface in AP, AP client or ad-hoc mode
> - separate transmit and receive antenna selection
> - adjustable transmit power
> - several other small enhancements
> 
> The client mode is a true client mode, and will connect to any AP
without
> this 'only works with products with the same chipset' BS. And since
(in
> router mode) no bridging code is used, the unit won't be plagued by
the
> bugs
> that make client mode on APs like the SVEC and Minitar difficult or
> impossible to use.
> 
> So my plan for GPR is to link the WRT54G in client mode to another
node
> such
> as GMR, BHH, or GDW (haven't decided yet, don't know what's visible),
use
> an
> SVEC with amp in AP mode for incoming connections, and still have lots
> room
> to expand.
> 
> To sum: the WRT54G is definitely a great little unit.
> 
> > Hi y'all,
> >
> > Has anyone here played with the WRT54G?  Seems you can run Linux on
it
> > and do all sorts of stuff - OSPF, QoS routing, SSH, some people have
> > even compiled and run Kismet on it.  I've heard that it has some
issues,
> > such as the radio perhaps not being so good, and it can be unstable.
A
> > Swedish company called Sveasoft has written some custom firmware
that
> > gives it all sorts of cool features such as Frottle.  Stephen Tossel
> > sent me the I, Cringely link today so I went and did a bit of
Googling.
> > I, Cringely seems a little over-enthusiastic about what's possible
with
> > modified WRT54Gs - grassroots metropolitan VoIP networks and the
like -
> > but they seem an interesting enough box to tinker with.  The eBay
link
> > below has them, in Melbourne, for $145.
> >
> > eBay
> >
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&category=11185&item=570
> > 2135888&rd=1&ssPageName=WDVW
> >
> > I, Cringely
> > http://www.pbs.org/cringely/pulpit/pulpit20040527.html
> >
> > I, Cringely, Slashdotted
> >
http://slashdot.org/article.pl?sid=04/05/28/1249235&mode=thread&tid=106&
> > tid=137&tid=185&tid=193&tid=215
> >
> > Seattle Wireless
> > http://www.seattlewireless.net/index.cgi/LinksysWrt54g
> >
> > Sveasoft documentation
> > http://docs.sveasoft.com/
> >
> > Sveasoft discussion forums
> > http://www.sveasoft.com/modules/phpBB2/index.php
> >
> >
> > Dan
> >
> > To unsubscribe: send mail to majordomo at wireless.org.au
> > with "unsubscribe melbwireless" in the body of the message
> >
> 
> 
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