internet sharing

hello, how can i configure my linux to share internet. my computer that has an internet has lancards on it. i do not hav a router or any device other than the lancard. im using fedora core 4. in windows it is easy to share internet connection, is it also easy on linux??? maybe someone can point me to some tutorials ...

Everything Linux 1798 This topic was started by jarves, 2005-11-14 13:54

Discussion 2

jarves

151 Posts
Location -
Joined 2003-12-23

#151585

2005-11-14 14:54

Keeping Fedora 4 applications working when kernel is updated

Need Help With Wireless LAN Using SUSE 10.0

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Responses to this topic

danleff

2895 Posts
Location -
Joined 2002-08-30

#151586

2005-11-15 05:45

Is this dialup, cable or DSL?

How many machines are you looking to set up?

If you have a cable or DSL connection, how many ethernet ports are on the modem?

If you have cable, does the ISP assign addresses statically or dynamically?

Knowing youe specific needs will help answer your question.

brozkeff

1 Posts
Location -
Joined 2005-12-06

#151587

2005-12-06 06:42

I expect you have ONE PC with TWO ethernet cards(interfaces). One goes to the other computer and one goes to the Internet.

Example situation:
[font:Courier]eth0 - to 2nd computer, IP 192.168.0.1
[font:Courier]eth1 - to Internet, IP 10.64.1.99

Let's do this on the computer in console (as root):
[font:Courier] echo "1" > /proc/sys/net/ipv4/ip_forward
(or permanently, add this line to [font:Courier]/etc/rc.d/rc.local
OR set it in [font:Courier]/etc/sysctl.conf (esp. in RH/Fedora))

[font:Courier]/sbin/iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE

Then, on the 2nd computer, you have to:
- set default gateway to 192.168.0.1
- set up the same DNS servers as on the 1st computer
You may enter fixed IP as well (eg. 192.168.0.2) or keep it on DHCP.

I have just set up this succesfully. If I didn't write something clear, you may ask me at: brozkeff-AT-gmail-DOT-com

_____________
Brozkeff