Jörg Harmuth wrote:
Alaios 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
First do as AragonX recommended. There is no sense in continuing if the
basics aren't ok. Additionally check if the default gateway of 10.2.4.2
is set to 10.2.4.1. Then try Edmundo's approach and add
iptables -t nat -A POSTROUTING -o eth1 -j SNAT \
--to 143.233.222.77
Question: Is 143.233.222.77 a dial-up interface ?
If it doesn't work tcpdump on 143.233.222.77, then on 10.2.4.1,...,
briefly: find the point, where it breaks. You may post the dumps. Some
surrounding information could help too: ifconfig, route -n,
iptables-save, hmm - I think that should do.
Good luck,
Joerg
Humm, I should have read the whole thread before posting, especially the
previous one :( My fault.
Yes, indeed. In the first place this is a routing problem. Read Nicks
charming explanation of subnet masks and you will see, that it can't
work. Do as others recommended: put a box between or change 253 to
something lower than 127 or change your network from 64/26 to 192/26 or
add a default gateway (you could try route add default eth1 - maybe it
works) - whatever you are able to do. But first fix your routing.
Good luck,
Joerg
