[olug] Networking problems

[Don E. Kauffman]

On Saturday 23 February 2002 09:40 am, you wrote:
> On Sat, 23 Feb 2002 16:22:57 -0600
> ==================================================================
>
> |10.200.6.223         kauffman2443.tconl.com       kauffman2443  # eth0
> |192.168.3.1           dkauffman   #  eth1
> |192.168.3.2           dekauff	      #  windows box
>
> So this is one Linux box (127.0.0.1, 10.200.6.223=eth0, 192.168.3.1=eth1)
> and one Windows box (192.168.3.2). ?
> ====================================================================
>
> I think you've prob just got some routing issues to solve, usu not too
> hard, as long as you keep it simple. ;) So, the Linux box can load
> webpages and everything just fine correct?
>
> That means this linux box has an IP address and route to the ISP (which is
> on the same network and within the netmask).  Now your private network is
> 192.168.3.XXX with netmask 255.255.255.0 , so you want to make sure the
> network cards on the private network have an IP in the 192.168.3.1-254
> range and their netmask is 255.255.255.0 (so that they know to only talk
> to computers in that range), and their default gateway should be the IP
> address of eth1 (the private network card on the linux box).
>
> 	1st - get the neworking setup
> the commands to know are: "route" and "ifconfig"
>
> so checking your settings, you should have the following:
> LINUX BOX
> (ifconfig -a)
> eth0 ip= 10.200.6.223  netmask= ??<ISP netmask>??
> eth1 ip= 192.168.3.1  netmask= 255.255.255.0
> (route -n)
> Destination	Gateway		Genmask		Iface
> 0.0.0.0		<ISP gw>	<ISP netmask>	eth0
> 192.168.3.0	0.0.0.0		255.255.255.0	eth1
>
> (if not, do the following) on the linux box:
> # ifconfig eth1 192.168.3.1 netmask 255.255.255.0
> # ifconfig eth0 10.200.6.223 netmask <ISP netmask>
> # route add default gw <ISP gw>

Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.3.0     0.0.0.0         255.255.255.0   U     0      0        0 eth1
10.200.0.0      0.0.0.0         255.255.0.0     U     0      0        0 eth0
127.0.0.0       0.0.0.0         255.0.0.0       U     0      0        0 lo
0.0.0.0         10.200.0.1      0.0.0.0         UG    0      0        0 eth0

This is what it looks like now. I can't figure out how to get the 0.0.0.0 
IP to have the ISP's Mask. 

I had everything set up on the windows box including dns except that I had 
two IPs  for the gateway instead of one. I removed the one for the ISP and 
kept the one that referred to the eth1.

We are making prorress. I can ping eth0 from the windows box. However, 
anything outside that is not accessible. including www.olug .org. Would this 
be caused by not having the correct mask on the line below?

0.0.0.0         10.200.0.1      0.0.0.0         UG    0      0        0 eth0

If so, then how do I go about resolving this?

Thanks for your patience!

Don Kauffman
> -----------
> Brian Wiese
> -----------
> bwiese at cotse.net
> "FREEDOM!"  - Braveheart
>
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For help contact olug-help at bstc.net - run by ezmlm
to unsubscribe, send mail to olug-unsubscribe at bstc.net
or `mail olug-unsubscribe at bstc.net < /dev/null`
(c)2001 OLUG http://www.olug.org

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