On Sunday 22 July 2001 20:22, Matthew Garman wrote: > I have an internal LAN with two computers. Even with no firewall, I > can't get the two computers to ping each other. For example, do the > following to flush all iptables: > > iptables -F > iptables -t filter -F INPUT > iptables -t filter -F OUTPUT > iptables -t filter -F FORWARD > iptables -t nat -F > iptables -t nat -F PREROUTING > iptables -t nat -F POSTROUTING > iptables -t nat -F OUTPUT > iptables -t mangle -F > iptables -t mangle -F PREROUTING > iptables -t mangle -F OUTPUT > > Now I set all default policies to ACCEPT: > > iptables -P INPUT ACCEPT > iptables -P OUTPUT ACCEPT > iptables -P FORWARD ACCEPT > iptables -t nat -P PREROUTING ACCEPT > iptables -t nat -P POSTROUTING ACCEPT > iptables -t nat -P OUTPUT ACCEPT > iptables -t mangle -P OUTPUT ACCEPT > iptables -t mangle -P PREROUTING ACCEPT > > And still the two computers can't ping each other. When I try to > ping, I watch the lights on my switch: the lights for both computers > are flashing, indicating link activity, but still ping times out. > > On my computer, which has the Internet connection, I can ping any > host out on the internet. > > Any thoughts? > > Thanks, > Matt
Matt do you ping with host names or ip adress ? how about default routes gateway netmask ? /regards J�rgen
