--- Ernest ter Kuile <[EMAIL PROTECTED]> wrote: > > I haven't checked your rules, but if you have a > modem/router (dsl or > other), is configured to allow all icmp ? (just to > be sure of course) > > Ernest
Also, you may want to verify that your kernel is allowing icmp packets: [EMAIL PROTECTED]:/proc/sys/net/ipv4# cat icmp_echo_ignore_all If you see the number 1, icmp packets (i.e., ping) will be ignored. You can change it with this command: [EMAIL PROTECTED]:/proc/sys/net/ipv4# echo "0" > icmp_echo_ignore_all -- Scott > > > On 13 Jun, 2008, at 21:29, Bharath Ramesh wrote: > > > I have a debian amd64 box. I am writing a set of > firewall rules. I > > want > > to be able to ping my machine from outside. I > wrote the following > > rule. > > I am still unable to ping my machine from outside. > Could someone > > verify > > that my rule is correct. > > > > # Allow to/be ping(ed). > > $IPT --append INPUT --in-interface $EXTIF > --protocol icmp --icmp- > > type 0 \ > > --destination $EXTIP --match state --state > > NEW,ESTABLISHED,RELATED \ > > --jump ACCEPT > > $IPT --append INPUT --in-interface $EXTIF > --protocol icmp --icmp- > > type 8 \ > > --destination $EXTIP --match state --state > NEW,ESTABLISHED,RELATED \ > > --jump ACCEPT > > $IPT --append OUTPUT --out-interface $EXTIF > --protocol icmp --icmp- > > type 0 \ > > --source $EXTIP --match state --state > NEW,ESTABLISHED,RELATED \ > > --jump ACCEPT > > $IPT --append OUTPUT --out-interface $EXTIF > --protocol icmp --icmp- > > type 8 \ > > --source $EXTIP --match state --state > NEW,ESTABLISHED,RELATED \ > > --jump ACCEPT > > > > I am able to ping other m/c from my m/c but I am > not able to ping from > > outside. > > > > Thanks, > > > > Bharath > > > > --- > > Bharath Ramesh <[EMAIL PROTECTED]> > http://people.cs.vt.edu/~bramesh > > > > > > -- > > To UNSUBSCRIBE, email to > [EMAIL PROTECTED] > > with a subject of "unsubscribe". Trouble? Contact > [EMAIL PROTECTED] > > > > > -- > To UNSUBSCRIBE, email to > [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact > [EMAIL PROTECTED] > > -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
