[K12OSN] laptops - workstations no access to internet

Johan Vermeulen jvermeulen at cawdekempen.be
Tue Nov 22 05:39:12 UTC 2011

Op 21-11-11 22:19, Barry R Cisna schreef:
> Johan,
> You did not mention if your 'test' laptop is a linux,or Winders machine,
> but it should not make any difference,regardless?
> > From this machine try pinging    google.com
> See if it resolves the google public ip address,,one time,,,but you
> never get any responses.
> If your 'test' laptop, is a windows laptop,,,do an ipconfig /all from
> the command line and post here what this shows.
> It appears this particular laptop is not traversing the gateway for some
> reason?
> Try hardcoding in the correct ip address, gateway and dns server
> numbers...into the laptop and see if you can web browse after these are
> put into it.
> Take Care,
> Barry

Hallo Barry,

thank you for the reply.

All machines involved are Linux, a little walk in the building at least 
solved the gateway problem, now all machines see the bridged network as 
gateway, 172.***.***.***.
As a consequence now none of the laptops or pc's can access the outside 
world, they can only ping the internel NIC, aka the bridged network 
The Thinclients boot fine and they work ok, but yesterday I crashed the 
whole network when wanting to assign fixed ip adresses to printers and 
restarting dhcpd.....

Probably there is an error in ip setup I posted before, or in 
dhcpd.conf, but I did not change that:

default-lease-time            21600;
max-lease-time                21600;
ddns-update-style none;
allow booting;
allow bootp;

#host printer-canon {
#  hardware ethernet 00:00:85:57:a9:18;
#  fixed-address;

option subnet-mask  ;
option broadcast-address;
option routers      ;
option domain-name-servers;
next-server         ;
option domain-name            "ltsp";
option option-128 code 128 = string;
option option-129 code 129 = text;
option option-221 code 221 = text;

shared-network WORKSTATIONS {
   subnet netmask {
      range dynamic-bootp;
      use-host-decl-names       on;
      option log-servers;

greetings, J.

> _______________________________________________
> K12OSN mailing list
> K12OSN at redhat.com
> https://www.redhat.com/mailman/listinfo/k12osn
> For more info see<http://www.k12os.org>

More information about the K12OSN mailing list