your commands are for iptables not ebtables. another way you could do this is
to use system-config-firewall to setup masquerading and a stock set of rules
for you since you’re not familiar with netfilter, and then add your custom
rules later.
From: Lázaro Morales
Sent: 31 October 2012 3:39 PM
To: users@lists.fedoraproject.org
Subject: IPTABLES and EBTABLES
Hello,
How can be used EBTABLES in addition to IPTABLES to forward traffic
from an internal LAN to an external?
Suppose that I have an internal LAN with private IPs, and a Gateway
that control the traffic to the outside, and I only need forward traffic
for certain MAC address regardless IP address.
INTERNET --> Gateway <--- LAN
I'm not sure if I have to enable the following modules in `sysctl.conf`:
net.bridge.bridge-nf-call-iptables = 0
net.bridge.bridge-nf-call-arptables = 0
I have tried with the following configuration, but nothing happens:
# ebtables -F
# ebtables -t nat -F
# ebtables -P INPUT ACCEPT
# ebtables -P OUTPUT ACCEPT
# ebtables -P FORWARD ACCEPT
# ebtables -A FORWARD -i eth0 -o eth1 -j ACCEPT
# ebtables -t nat -A POSTROUTING -s INTERNAL_LAN_CLIENT_MAC -o eth1 \
-j snat --to-source MAC_OF_EXTERNAL_GATEWAY_INTERFACE
Any thought will be highly appreciated.
Thanks in advance,
Lázaro.
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