On Sat, Nov 09, 2002 at 01:04:15PM +0000, Antony Stone wrote: > On Friday 08 November 2002 2:39 am, James Stickland wrote: > > > A while ago, while simultaneously icmp pinging my isp's dns server and > > viewing the tcpdump of the interface to which the icmp requests/replies > > were going out/in from, i realised that my ISP's DNS server drops icmp > > ping requests, and instead replies with a message visible to tcpdump > > something along the lines like this: "This server does not allow ping > > replies." > > > > My question is, would there happen to be a jump i could do with netfilter > > that would enable me to send out such a message for certain types of > > packets coming in? > > Probably. What was the reply you saw ? (Presumably you can recreate it by > pinging your ISPs DNS again ?) Please post this, I'd be interested in the exact tcpdump output too :) > I'm interested to know what message you saw meaning "this server does not > allow ping replies".... Hmmm...... -- FunkyJesus System Administration Team
