Hi
I have a SuSE 10 box which will be used as a firewall. Even if I ACCPET the data from all the chains, the box does not respond to my echo_request packages.
From command line
Code:
# iptables -F
# iptables -A INPUT -j ACCEPT
# iptables -A OUTPUT -j ACCEPT
Even with the configuration above, it does not respond.
I listen the interfaqce of the firewall with tcpdump. The machine receives the echo_request messages but does not respond.
The value in /proc/sys/net/ipv4/icmp_ignore_all is 0. I can connect to machine with ssh.
How can I make it to respond my pings? And one more question, how can I permamenently set /proc/sys/net/ipv4/ip_forward to 1.
Thanks....