Re: Problem reexplained.....

[Edmundo Carmona <eantoranz@gmail.com>]

I would say it's a simple thing you are missing to consider. Maybe the
IPs you are using are not right... or the interfaces are not correct.

double check.

then start to build rules one by one, and testing them... it normally
shouldn't fail.

In case you are not sure if it's the kernel, get a Live-CD distribution and try.

On 9/27/05, Alaios <alaios@yahoo.com> wrote:
> I have restarted my pc just for being sure.. i have
> run your commands but the tcpdump -i eth0 -vv -n give
> nothing :(
> it doesnt work :(
> I think its time to start debugging. plz suggest me
> how to  use efficiently logging so as to find out what
> the is the problem
>
> --- Edmundo Carmona <eantoranz@gmail.com> wrote:
>
> > Well.. first easiest (probably insecure) attempt:
> >
> > iptables -P FORWARD ACCEPT
> > iptables -t nat -A PREROUTING -d 143.233.222.77 -j
> > DNAT
> > --to-destination 10.2.4.2
> >
> > echo 1 > /proc/blah/blah
> >
> > That should stablish comunication between internet
> > and the 10.2.4.2
> > box (started from the internet).
> >
> > On 9/27/05, Alaios <alaios@yahoo.com> wrote:
> > > Let me reexplain the problem plz
> > > >From src 143.233.222.253 starts some traffic that
> > goes
> > > to the 143.233.222.77 this is the eth1 of the
> > laptop
> > > The laptop has also one more interface the
> > 10.2.4.1
> > > that is connected back to back (cross cable) with
> > the
> > > interface of an other pc with ip address 10.2.4.2
> > > IO want the traffic that reaches 143.233.222.77
> > reach
> > > the 10.2.4.2
> > > This is the first step.. when i succesfully
> > implement
> > > this then the next step is to forward this traffic
> > > from the pc to a second pc... ( i ll use the same
> > > methodology if step one works)
> > > So now we can only focus to the first step
> > > Plz take in mind that i dont have any firewall
> > enables
> > > /proc/sys/net/ipv4/ip_forward is set to 1. I have
> > no
> > > other iptables rules applied... I will only apply
> > what
> > > u ll write to do..
> > > Before applying any iptables rules firstly i do
> > > iptables -F
> > > iptables -F -t nat
> > > (if more flush commands are necessary plz say it
> > so)
> > > So i need your help to implement this simple task
> > >
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