[ale] home networking difficulties

Geoffrey esoteric at 3times25.net
Fri Aug 16 10:28:06 EDT 2002


I'd suggest firing up tcpdump or ethereal on your Redhat box nic that's 
connected to your internal network.  See if anything is coming from that 
side.

Also, what does your routing look like on the Redhat box?

Andrew Grimmke wrote:
> Hello Everybody,
> 
> I need some help or suggestions for getting my home
> network up and running.  Here are some details:
> 
> - The network has the following topology: DSL (telocity
> gateway [dsl modem]) -> (1)Linux Box -> 5 Port Switch
> -> (2)Windows Box (plus others to be added later). 
> 
> - The OSes are (1) Redhat 7.3 (2) Windows ME (3) Vector
> Linux 2.0.
> 
> - All nic cards work and seem to be configured properly.
> 
> - The DSL provides a static IP address and presently
> works fine on box 1
> 
> - The internal network is your typical class C
> (192.168.1.X).  I am not using DHCP.  I have configured
> /etc/sysconfig/network-scripts/ifcfg-eth1 adding the
> IP. 
> 
> - I have checked /etc/sysconfig/network to ensure that
> networking and IP forwarding are on.
> 
> - I edited /etc/sysctl.conf to make sure it includes
> the lines net.ipv4.ip_forward = 1 and
> net.ipv4.ip_always_defrag = 1 (this was suggested in
> the ldp how-to)
> 
> - I restarted the network with /etc/rc.d/init.d/network
> restart
> 
> - On the windows machine, I went to control panel >
> network and selected tcp/ip netwoking interface and
> properties.  In this dialog box I added the internal
> network card from box 1 (192.168.1.1) as the gateway,
> assigned the ip 192.168.1.2, and put in my ISPs domain
> and dns server IPs.
> 
> - I try to ping from box 2 to 1.  Timeout.
> 
> - I try to ping from 1 to 2.  6 packet sent 0 recieved.
> 
> - This is interesting.  If I have my old windows
> software firewall active when I attempt to ping from 1
> to 2, I get a popup "unauthorized ICMP attempt from
> 192.168.1.1".  So I know the hardware is working.
> 
> - My guess is that either: box 2 is not responding to
> the ping request (even with the firewall down) or box 1
> is not accepting the response (I tested it with
> IPchains disabled to no avail). 
> 
> Any suggestions as to what I might be doing wrong or
> things that I might try will be greatly appreciated.
> 
> Andrew Grimmke
> Marietta, Georgia
> 
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> 


-- 
Until later: Geoffrey		esoteric at 3times25.net

I didn't have to buy my radio from a specific company to listen
to FM, why doesn't that apply to the Internet (anymore...)?


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