Hi,

Can any one help, I tried to setup DHCP server redhat linux 9 with 2 NIC, eth0 is setting with real IP address/24, and eth1 is setting with 10.10.10.1/24. DHCP is set for eth1.

Problem is from any client pc, I can not ping to real gateway. How do I setup route?
eth0 (xxx.xxx.xxx.4/24) GWxxx.xxx.xxx.1 and
eth1 (10.10.10.1/24) GW xxx.xxx.xxx.4




Thank You,
Richard

hi!

1. you need to parse in dhcp package the gateway ( i think 10.10.10.1... )


2. in your dhcpd box you need to enable ip_forward ( to parse packages from 1 interface to another, de default in most of distribuctions this feature is turned off, to enable execute this comand: )
echo 1 > /proc/sys/net/ipv4/ip_forward


3. do you want to make nat from clients?
iptables -t nat -A POSTROUTING -s 10.0.0.0/24 -o eth0 -j MASQUERADE
iptables -P FORWARD ACCEPT

( very simple and insecure nat rules )

Sorry my poor english, i'am brazilian!
good bye!
Domingo Antonio

DOWNLOAD QUICKTABLES (a BASH SCRIPT TATH GENERATES ALL THINGS U NEED TO BECOME A BOX INTO A ROUTER AND EASY!!!!!!(FOR EXAMPLE: ppp0 to eth0 and wan0 to eth1)
The script ask u a few easy questions and the generates a file rc.firewall (put it in etc/rc.d/ folder and include in rc.local file the line
/etc/rc.d/rc.firewall (With THIS u WILL BE enableing routing for example from ADSL ppp0 to eth0)

Run quicktables again and generate another rc.firewall file (change the name)

Do the same thinbgs as above: like that u will be enabling for example wan0 (wireless conextion) routed to eth1


the dont make dhcpd service to start as a service
in etc/rc.d/rc.local file include:
dhcp eth0 eth1

Thank you for your replied, I will test my system with your suggestion.
Thanks,
Richard