[ale] routing and networking

Venkatesh Dattathri venkat at csl.uta.edu
Sat Apr 10 15:40:52 EDT 1999


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Hi Tri,
     

On Sat, 10 Apr 1999, Tri wrote:

> >From Tri:
> Here's more info about the situation
> 
> Here is what I get from netstat -nr:
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags   MSS Window  irtt
> Iface
> 192.168.1.0     0.0.0.0         255.255.255.0   U                0 0
> 0  eth0
> 
> Here's what I get from ifconfig eth0:
> eth0      Link encap:Ethernet  HWaddr 00:A0:CC:3B:22:5E
>           inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>           Collisions:0
>           Interrupt:10 Base address:0xb000
> 


The RX and TX packets should not be 0 . it should be some number, and only
then can you connect to other systems ..( i don't know why it is so or
what the significance is..)


Also, take a look at the attached Howto.. it may help..

> And this might help also, this is my init network script under debian 2.1:
> 
> #! /bin/sh
> ifconfig lo 127.0.0.1
> route add -net 127.0.0.0 lo
> ifconfig eth0 192.168.1.1 netmask 255.255.255.0 up
> 
> I know the route command for eth0 is missing, but the kernel sets one up
> automatically.
> 

I suggest you try having a route add command for eth0 in your init script.


> Tri
> 
> -----Original Message-----
> From: Eric Ayers <eric.ayers at mindspring.com>
> To: Tri <merlintm at bellsouth.net>
> Date: Saturday, April 10, 1999 7:50 AM
> Subject: Re: [ale] routing and networking
> 
> 
> >Tri wrote:
> >>
> >> When I try to telnet into a second computer(192.168.1.2) on my network,
> >> telnet returns a message that says it can't reach the host since there is
> no
> >> route to the host. However my routing table indicates that indeed there
> is a
> >> route to every machine on the 192.168.1.0 network. I am using kernel
> 2.2.5,
> >> the route was set automatically by the kernel when I used:
> >> ifconfig eth0 192.168.1.1 netmask 255.255.255.0 up
> >> to set up my network card. I am sure that my drivers are loaded correctly
> >> and the second machine is also using the same kernel version and
> configured
> >> the same way( except for the ip address of course) Any Ideas on why this
> is
> >> happening. I am using the tulip driver.
> >> Tri
> >
> >
> >why don't you mail the output of:
> >
> >netstat -nr
> >and
> >ifconfig eth0
> >
> >on both machines to the list?
> >
> 


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