[plug] was: cannot ping internet from desktops now: cannot ping internet from server.

Jon Miller jlmiller at mmtnetworks.com.au
Fri Aug 1 00:06:00 WST 2003


Have to change topic, the client has now rebuilt the server and is now
in a worst position than before. They are using PQLinux 8 (similar to
RH8).  Now they cannot ping the Internet.
Routing shows that def gw is the private ethernet port of router.
We set up a basic firewall that allows traffic to forward out to the
Internet, yet we cannot see anything returning.

Thanks

On Thu, 2003-07-31 at 14:03, Onno Benschop wrote:
> On Thu, 2003-07-31 at 14:05, Jon Miller wrote:
> > Got a client that has a rh8 server with shorewall firewall.  this
> > server has 2 nic one attached to the ADSL cisco router supplied by
> > telstra.
> > Their routing table looks okay, by this the default gateway is the IP
> > address of the ethernet port of the ADSL router, the private IP
> > address is listed to go through the def gw.  I double checked
> > everything in this with a comparison of my routing table minus the VPN
> > entries.
> > 
> > What was happening last night was from the server we could ping the
> > internet, however from the desktop they couldn't yet the desktops had
> > their def gw set to the Linux server.  Can anyone lend some light as
> > to why the desktops cannot access the Internet?
> 
> Some thoughts - perhaps useful, perhaps not:
> 
>       * Are you forwarding the packets from the internal network to the
>         external one?
>       * Are packets going out, but the replies not coming back?
>       * Can you ping the server from the outside?
> 
> Onno Benschop 
> 
> Connected via Optus C1 from S33:37'33" - E115:07'30" (Dunsborough, WA)
-- 
Jon Miller <jlmiller at mmtnetworks.com.au>
MMT Networks Pty Ltd




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