[K12OSN] laptops - workstations no access to internet

Johan Vermeulen jvermeulen at cawdekempen.be
Mon Nov 21 10:54:16 UTC 2011





Beste Ellen, dear All,

thanks for the reactions.

We zitten denk ik niet ver van elkaar, Ellen :=)

This is very strange, it seems to work out of the k12ltsp box for several stations, but not for my own laptop ...

I'm now working on a machine that sees eth0, as gateway;

[root at new-host-4 ~]# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface   U     1      0        0 eth0         UG    0      0        0 eth0

maybe that is normal when working with bridged network ?????

while my laptop sees eth1 ltspbr0 as gateway, as I would expect.
Both machines are on NetworkManager.

So I'm not getting this.

greetings, J.

Opensource Software is the future.

----- Oorspronkelijk bericht -----
Van: "Ellen Verheyen"<thepiano at telenet.be>
Aan: "Johan Vermeulen"<jvermeulen at cawdekempen.be>
Verzonden: Maandag 21 november 2011 07:39:31 GMT +01:00 Amsterdam / Berlijn / Bern / Rome / Stockholm / Wenen
Onderwerp: Re: [K12OSN] laptops - workstations no access to internet


ipv4 forwarding aanzetten in :-)

To configure a CentOS or Fedora Linux host to forward IPv4 traffic, you can set the “net.ipv4.ip_forward” sysctl to 1 in /etc/sysctl.conf:

net.ipv4.ip_forward = 1

Once the sysctl is added to /etc/sysctl.conf, you can enable it by running sysctl with the “-w” (change a specific sysctl value) option:

$ /sbin/sysctl -w net.ipv4.ip_forward=1
net.ipv4.ip_forward = 1


Ellen Verheyen
EK Projects bvba

Op 21-nov.-2011, om 01:05 heeft Johan Vermeulen het volgende geschreven:

dear all,

I've set up K12Linux per instructions onhttps://fedorahosted.org/k12linux/

It all went down without EM, and thinclients seem to boot fine.

However, when attaching a normal station of laptop on the network, it gets an Ip adress,
and can ping the eth1/ltspbr0, but cannot access the internet.

This is some of my config :

[root at crc network-scripts]# ls
ifcfg- ifdown-ipv6 ifup-bnep ifup-routes
ifcfg-eth0 ifdown-isdn ifup-eth ifup-sit
ifcfg-eth1 ifdown-post ifup-ippp ifup-tunnel
ifcfg-lo ifdown-ppp ifup-ipv6 ifup-wireless
ifcfg-ltspbr0 ifdown-routes ifup-isdn init.ipv6-global
ifdown ifdown-sit ifup-plip net.hotplug
ifdown-bnep ifdown-tunnel ifup-plusb network-functions
ifdown-eth ifup ifup-post network-functions-ipv6
ifdown-ippp ifup-aliases ifup-ppp

#vi ifcfg-eth1

I have to admid, I'm kinda lost on this, don't know where to look.

Any help would be greatly appreciated.

btw Warren, I will post the lts.conf as soon as I get this fully working...

greetings, J.

Opensource Software is the future.

K12OSN mailing list
K12OSN at redhat.com
For more info see<http://www.k12os.org>

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