'route add default gw ...' not working

[transmogrifier]

Hi,
I have a newly installed Knoppix/Debian.

My problem: I can't reach any IP outside my network - this is probably because there is no route:
#route
192.168.1.0 * 255.255.255.0 U 0 0 0 eth0

My DSL-Router is 192.168.1.1 and I can it ping it without any problem.
But when I try
(after: ifconfig eth0 down - and also up)

route add default gw 192.168.1.1

I always get the message:
network is unreachable

What is specially terrible: it worked today already!
I followed the same steps (after some trouble to find the route command) and suddenly everything worked fine!
So I know that the card, cables, drivers and whatever is o.k.
- has anybody any hint?
But now it won't anymore.

I would be really, really glad!

 

[Andre]

Hi!
Try to use (as root) "netenv" to set up your network.
that should solve your Problem....

Another way is to edit the necessary files directly..
greetz Andre ;-)

 

[transmogrifier]

netenv doesn't help

Hi Andre,
thank's for your answer!
- but netenv doesn't seem to change anything.

I would be very glad to insert my defaultroute directly - but which f..ng file is it???

Everybody is always speaking about the routing table but I can't find it - is it possible to edit it directly?
And what do I have to insert to have the analogue for:
route add default gw 192.168.1.1 ?

BTW: Do you have an idea where the problem comes from?
I suppose normally linux would find the network during the boot process - but it doesn't. There is already the message "The network is unreachable".
But nevertheless I can ping any pc in my network.

Thank's a lot for your help!

 

[Andre]

I think "etc/network/interfaces" is what you are looking for ;-)

linus@FuckUp:~$ cat /etc/network/interfaces
# /etc/network/interfaces -- configuration file for ifup(8), ifdown(8)

# The loopback interface
auto lo
iface lo inet loopback

# The first network card - this entry was created during the Debian installation
# (network, broadcast and gateway are optional)
auto eth0
iface eth0 inet static
        address 192.168.0.8
        netmask 255.255.255.0
        network 192.168.0.0
        broadcast 192.168.0.255
        gateway 192.168.0.3

I hope that helps...

 

[transmogrifier]

Hi Andre,
this wasn't the problem either.

Now I removed Knoppix and installed pure Debian and everything was immediatly working well.

Anyway, thank's a lot for your help.

 

[MTS]

I would guess that the whole thing is a iptables problem!
I dont exactly know the Knoppix Distribution. But my Redhat for example had a automatically configured firewall that always caused this problem.

Just do a iptables -F to delete the rules and then try again ...