dhcp server - client cannot connect to the internet

[cpdp]

Hi,
I have seen similar posts, but I was not able to find a solution for my problem. Can you please help me?

I am trying to setup a dhcp server (first time in my life). I have a Fedora 12 machine with two NIC, first one for Internet connection:

DEVICE=eth0
HWADDR=XX:XX:XX:XX:XX:XX
ONBOOT=yes
IPADDR=147.213.192.XX
BOOTPROTO=none
NETMASK=255.255.255.0
DNS2=193.87.10.7
TYPE=Ethernet
GATEWAY=147.213.192.1
DNS1=147.213.192.3
NM_CONTROLLED=no
IPV6INIT=no
USERCTL=no
FORWARD_IPV4=true

second one:

DEVICE=eth1
PEERDNS=yes
HWADDR=XX:XX:XX:XX:XX:XX
ONBOOT=yes
BOOTPROTO=none
TYPE=Ethernet
IPV6INIT=no
USERCTL=no
NM_CONTROLLED=no
IPADDR=192.168.0.1
NETMASK=255.255.0.0
BROADCAST=192.168.0.255
NETWORK=192.168.0.0
FORWARD_IPV4=true

the configuration file for dhcpd, /etc/dhcp/dhcpd.conf:

ddns-update-style ad-hoc;
default-lease-time 600;
max-lease-time 86400;
authoritative;
subnet 192.168.0.0 netmask 255.255.0.0 {
range 192.168.0.10 192.168.0.30;
option routers 192.168.0.1;
option ip-forwarding on;
option domain-name-servers 147.213.192.3, 193.87.10.7;
}

host margerine {
hardware ethernet 00:21:85:33:8F:78;
fixed-address 192.168.0.13;
option host-name "margerine.saske.sk";
}

iptables:
/etc/rc.local:

iptables --table nat --append POSTROUTING --out-interface eth0 -j MASQUERADE
iptables --append FORWARD --in-interface eth1 -j ACCEPT

in /etc/sysctl.conf:
net.ipv4.ip_forward = 1

I have also added margerine in hosts. And the result?

I am able to ping from client margerine to both the 192.168.0.1 and XX:XX:XX:XX:XX:XX, but I am not able to connect the Internet or even 147.213.192.3.
(Connection to internet from server works fine, and also the connection from server to client.)
As If the forwarding was still denied.

route:

147.213.192.0 * 255.255.255.0 U 0 0 0 eth0
link-local * 255.255.0.0 U 1002 0 0 eth0
link-local * 255.255.0.0 U 1003 0 0 eth1
192.168.0.0 * 255.255.0.0 U 0 0 0 eth1
default 147.213.192.1 0.0.0.0 UG 0 0 0 eth0

Any idea?

[robin_bga]

Hi cpdp,
I also had the exact problem with the exact settings like yours and this was when i used Fedora 11 & 12, so what i did i installed 8, and it work perfectly well. but one thing you should put in mind is that NetworkManager has buts the the versions i have mentioned, so think you need to try and remove it then edit the ifcfg-ethx files directly.

#rpm -e NetworkManager
remember it has applications that depend on it like vpn & gnome so you may need to remove them too.
#vi /etc/sysconfig/network-script/ifcfg-eth0
#vi /etc/sysconfig/network-script/ifcfg-eth1
also make sure you do
#service iptables save
#service iptables stop then start

You dchpd.conf is ok.

if it fails then i would think install fedora 8 x86-64, i loved it very fast time i used it, it fast and stable.

Cheers R

[coopstah13]

i would highly recommend against installing an outdated distro like F8

these are basic functionalities of all linux distros, you do not need to install an old one to get it to work

after you added forwarding to sysctl.conf did you run sysctl -p command to actually put the values into effect or reboot?

[cpdp]

Thanks to both of you. The problem was in the /etc/rc.local file. It wasn't running after reboot. I am not sure why.
I have tried:
ln -s /etc/rc.d/rc.local /etc/rc.local
with the result:
ln: creating symbolic link '/etc/rc.local' :File exists
but after reboot everything works fine.