[ale] network question with a little linux

Mark Walters mwalters at coe.uga.edu
Sun Jan 5 10:27:31 EST 2003


Thanks Bob and DragOn,
I setup a linux router yesterday and I'm in the process of putting my 
wireless router behind that. I think this will be the most secure solution 
and one that works, provided I secure it properly. :-> Thanks for the 
help.

-- 
---------------------------
Mark Walters
Ramsey Helpdesk
mwalters at coe.uga.edu	
(706)542-4417

On Fri, 3 Jan 2003, Transam wrote:

> Mark,
> 
> > I have a problem and thought you guys might be kind enough to help me out.  
> > Problem:
> > I've got a wireless router with an IP of 66.X.X.X , on the internal lan 
> > 192.168.x.x .  Behind this router I have my linux box(192.168.x.x) with 
> > the web server running.  I can reach this server from the internal lan 
> > using 192.168.x.x and I can reach this server from a machine outside the
> > lan(from work completely different network)with the IP(66.x.x.x) and 
> > domain name. 
> > However from the internal lan using the 66.x.x.x ip or the domain name 
> > I can't reach the web sever. traceroute from inside the lan to  anything 
> > outside the lan yields
> 
> The problem is in your router in that it is failing to recognize that the
> ip 66.X.X.X should go back to itself.  This may be configuration error
> or with a less Windows-like (e.g., less buggy) piece of equipment.
> Alternatively, live with having to specify the internal IP from inside or
> have a Linux box do proper routing or even IP Masquerading itself on the
> inside network.
> 
> > traceroute to 66.x.x.x (66.x.x.x), 30 hops max, 38 byte packets
> >  1  * * *
> >  2  * * *
> >  3  * * *
> >  4  * * *
> >  5  * * *
> >  6  * * *
> >  7  * * *
> >  8  * *
> > I can browse the web and reach external ip's and domains from within the 
> > lan but like I said when I try to reach my public ip or domain or 
> > traceroute to  an external source no luck.
> > If it helps the router is a netgear mr814 wireless router an there are no 
> > upgrades for it yet.  I also want the netgear wireless card to work with 
> > my Redhat 8.0 laptop it doesn't now but we can work on that later.
> > Thanks for the help guys.
> 
> > ---------------------------
> > Mark Walters
> > Ramsey Helpdesk
> > mwalters at coe.uga.edu	
> > (706)542-4417
> 
> Bob Toxen
> bob at verysecurelinux.com                [Please use for email to me]
> http://www.verysecurelinux.com         [Network&Linux/Unix security consulting]
> Quality Linux & UNIX security and SysAdmin & software consulting since 1990.
> 
> "Microsoft: Unsafe at any clock speed!"
>    -- Bob Toxen 10/03/2002
> _______________________________________________
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> Ale at ale.org
> http://www.ale.org/mailman/listinfo/ale
> 

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