Hi everyone,
i'm try to build a server with linux 8.0. this is the way i connect my home computer.
----->phone line to the modem (SBC ADSL) -> linux 8.0 server (two network card: eth0 for outside network, eth1 for LAN connection, setup NAT server already) -> netgear router (ip:192.168.1.2, netmask 255.255.255.0, gateway 192.168.1.1, DNS:got it from ISP webside, LAN ip=192.168.1.3, mask=255.255.255.0, gateway=192.168.1.1, PLUS firewall set to none, set windows 1 ip= 192.168.1.100, windows 2 ip=192.168.1.101) -> two home computer(all windows xp professional, ip etc.set to automaticly get from ISP )<-------

problem: Linux's network is working fine so i can use internet. However, from windows, i couldn't connect to internet. i ping eth0 and 127.0.0.1 is fine, but when i ping my windows 1 machine (192.168.1.100) said it is unreachable.same as windows 2. i also try proxy setting and then try setup NAT server but it doesn't work. of course i couldn't connect to internet with windows 1 and 2.
PLEASE HELP!!

detail: output of ifconfig & route -n:

Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
bras3-l0.pltnca * 255.255.255.255 UH 0 0 0 ppp0
192.168.1.0 * 255.255.255.0 U 0 0 0 eth1
127.0.0.0 * 255.0.0.0 U 0 0 0 lo
default bras3-l0.pltnca 0.0.0.0 UG 0 0 0 ppp0

eth0 Link encap:Ethernet HWaddr 00:C0:F0:56:16:72
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:192918 errors:0 dropped:0 overruns:0 frame:0
TX packets:192212 errors:0 dropped:0 overruns:0 carrier:0
collisions:18 txqueuelen:100
RX bytes:25102358 (23.9 Mb) TX bytes:15085894 (14.3 Mb)
Interrupt:5 Base address:0x8000

eth1 Link encap:Ethernet HWaddr 00:C0:F0:5A:87:7F
inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:13414 errors:10 dropped:0 overruns:0 frame:0
TX packets:69 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:934755 (912.8 Kb) TX bytes:2898 (2.8 Kb)
Interrupt:10 Base address:0xa000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:387 errors:0 dropped:0 overruns:0 frame:0
TX packets:387 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:45396 (44.3 Kb) TX bytes:45396 (44.3 Kb)

ppp0 Link encap:Point-to-Point Protocol
inet addr:68.126.200.255 P-t-P:151.164.184.79 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1
RX packets:23270 errors:0 dropped:0 overruns:0 frame:0
TX packets:23404 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:2983903 (2.8 Mb) TX bytes:2788482 (2.6 Mb)


-> eth1 eth0 ip

With a router you must use different networks.
You have Linux8 connected to router, network between them is 192.168.1.0
The computers connected to the router must reside in a different network.
Assign windows something like 192.168.2.x

thank you, pingu, i think that would be the reason, but i don't have chance to do now, because my girlfriend complain about no internet on her computer. i have to reconnect the linux and the router.

thanks again for your advise

Andrew