Re: [networking] Computer can't see the outside world any more

From: Oliver Elphick (olly_at_lfix.co.uk)
Date: 08/10/05

  • Next message: Gareth Adams: "Re: [networking] Computer can't see the outside world any more"
    To: Gareth Adams <gareth.adams@gmail.com>
    Date: Wed, 10 Aug 2005 11:58:35 +0100
    
    

    On Wed, 2005-08-10 at 11:19 +0100, Gareth Adams wrote:
    ...
    > Now the strange thing is that, from logging into the server, I can
    > ping any local address except for the DHCP server and the default
    > gateway.

    > I can't ping any global addresses, but this is obviously a
    > symptom of not being able to reach the gateway. Another machine
    > plugged into the same hub as the web server has no problem reaching
    > any address, local or global.
    ...
    > Where do people think I should start looking? No one here has any idea.

    How about setting it up with a static IP address and see if it works
    like that? (The DHCP server can be configured to avoid that address.)

    You could also try running tcpdump on another machine to see if packets
    from the web-server appear on the network.

    -- 
    Oliver Elphick                                          olly@lfix.co.uk
    Isle of Wight                              http://www.lfix.co.uk/oliver
    GPG: 1024D/A54310EA  92C8 39E7 280E 3631 3F0E  1EC0 5664 7A2F A543 10EA
                     ========================================
       Do you want to know God?   http://www.lfix.co.uk/knowing_god.html
    -- 
    To UNSUBSCRIBE, email to debian-user-REQUEST@lists.debian.org 
    with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
    

  • Next message: Gareth Adams: "Re: [networking] Computer can't see the outside world any more"

    Relevant Pages

    • Re: connected but not connecting
      ... execute the ping program by entering: ... If the server inside your router or gateway has that IP address, ... then the wireless connection with get three echo replies from the ...
      (alt.internet.wireless)
    • RE: IPNAT / IPF / rdr issue
      ... All your clients are on the LAN behind the gateway correct. ... > request has to go to your ISP DNS server to get your public ip ... > block out log first quick on dc0 all ...
      (freebsd-questions)
    • Re: is this DNS okay ??
      ... On the server, the firewall must have an exception for the dns service. ... Both these computers are connected output ports on the gateway. ... From the winXP machine I tryed to ping intranet.newbie.testing and didn't get any response... ...
      (microsoft.public.windows.server.general)
    • Re: Help: Mandriva drops DHCP IP address nor cant ping to local host
      ... > The laptop is connected to a physical LAN with a DHCP server. ... can you ping the default gateway? ...
      (comp.os.linux.networking)
    • Re: Weirdest behaviour - dns or active directory?
      ... The ping result seems entirely expected - you are routing 192.168 to the default gateway, and your ISP is rejecting the address, ... the phantom server. ... > i changed the ip of the dhcp server from 192.168.1.2 to the 10.x.x.x ... > records were found in the directory service the really weird thing is ...
      (microsoft.public.win2000.dns)