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steve at horne.homelinux.net wrote, On 08/03/2004 10:29 PM: > > I recently bought a laptop on ebay (long irrelevant story) which > has a problem I've neber seen before. When I set up the built-in ethernet, > everything seems to go fine. Works in Knoppix (first time), and in xp (after n reboots, for large n -- maybe a clue?) > > "seems" is the key word. I can ping out, dns lookups work, > at least in knoppix. (I think pings worked in xp too.) > > > But I can't use ssh, or a browser. Even in knoppix. You don't say what happens when you try. Diagnostics: tail -f /var/log/messages as you try your browser tcpdump -i whatevertheethernetdeviceis as you try your browser iptables -L -n | more to see any firewall rules that might be blocking My first-cut guess is that you have a firewall rule blocking TCP traffic but not UDP traffic, either on the laptop itself, or whatever you use between the internet and your intranet. Try assigning it a very different IP address, too. > When I plug a network card into the pcmcia slot, the pcmcia > card works fine in all respects in both knoppix and xp. Since it will have a different device name, it may not be blocked by the firewall. > The question -- is it possible that the hardware is somehow broken, > so that pings work, and dns lookups work, but > nothing else??? I really can't imagine that's the case. Once you have link-level connectivity, the hardware doesn't care what protocol runs over it, -- DDDD DK KD HORRIBLE design decisions. That language should be kept in the kinky DKK D toy box, next to the steel-wool panty liners and the ziploc baggie of DK KD leaky Elbow Grease tubes. DDDD - Crash, on Java
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