[ale] network question with a little linux

[Transam]

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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