why is iptables still filtering after i disable the firewall?

[Robert P. J. Day]

  i suspect this is based on my unfamiliarity with the way ubuntu
pre-10.10 deals with firewalls but i'm trying to simply ping from my
ubuntu system to a centos 5.5 box on the same in-house wireless
network and i'm getting icmp responses, "Destination Host
Unreachable."  yet i can ping the other way (centos -> ubuntu).

  i've completely disabled iptables on the centos system, and i want
to do the same on ubuntu.  i installed gufw and i did what i thought
disabled the firewall on the ubuntu box, yet when i run "sudo iptables
-L", i'm still seeing some filtering:

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination
ACCEPT     all  --  anywhere             192.168.122.0/24    state
RELATED,ESTABLISHED
ACCEPT     all  --  192.168.122.0/24     anywhere
ACCEPT     all  --  anywhere             anywhere
REJECT     all  --  anywhere             anywhere
reject-with icmp-port-unreachable
REJECT     all  --  anywhere             anywhere
reject-with icmp-port-unreachable

and while the forwarding rules shouldn't affect this, how can i simply
disable the firewall entirely?  if i invoke "gufw" and disable the
firewall, shouldn't that do it?

rday


-- 

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Robert P. J. Day                               Waterloo, Ontario, CANADA

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