Debian Firewall Problems
I have an Conectiva Linux firewall with the follow structure:
Net1 (10.2.1.0/24) ---- FIREWALL1 ---- Net2 (10.255.255.0/24) ---
FIREWALL2 ---- INTERNET
The interface 1 (Net1) of the Firewall is 10.2.1.254 and the interface
2 (Net 2) is 10.255.255.250. This structure is working fine on a Conectiva
Linux but now, I'm replacing the Conectiva and put a Debian :]
The Debian firewall will have the same structure of the Conectiva
I set up the new firewall and configured it like the conectiva but, I'm
having some problems:
1. When I try to ping, using a machine on Net1, the interfaces
1 and 2 of the firewall1, it works fine but, if I ping others machines on
Net2, it doesn't work
2. If I try access the Internet using a machine on Net1, I
I used the commands:
sysctl -w net.ipv4.ip_forward=1
sysctl -w net.ipv4.conf.all.rp_filter=0
but, I still can't access the Internet.
I'm a bit confuse because this is working fine on a Conectiva but, in
the Debian not. My iptables rules is accepting everything while I'm doing
the tests. I'm not using NAT.
Does anyone could help me please ? Is the anything specific to set up on
Debian Linux ?