Slackware 9

roguefoxx · 09-07-2003, 11:25 AM

Hello. I really really need some help here.. I'll try to explain it the best that I possibly can, but take in mind, I'm a real n00b. I built a custom router,and I'm trying to get it to.. well. route. :P

I'm running Slackware 9.

I have a PPP connection, called "ppp0". And I have 2 ethernet cards. I already have the ethernet cards ips set up, so that's all set..

IFCONFIG:

Quote:

root@router:/home/cody_harders# ifconfig
eth0 Link encap:Ethernet HWaddr 00:40:95:0A:90:79
inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:22 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:0 (0.0 b) TX bytes:3440 (3.3 Kb)
Interrupt:10 Base address:0xdf00

eth1 Link encap:Ethernet HWaddr 00:40:95:0A:8B:2B
inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:5 Base address:0xfe00

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:15 errors:0 dropped:0 overruns:0 frame:0
TX packets:15 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1336 (1.3 Kb) TX bytes:1336 (1.3 Kb)

ppp0 Link encap:Point-to-Point Protocol
inet addr:67.234.138.205 P-t-P:67.234.128.4 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1524 Metric:1
RX packets:1074 errors:0 dropped:0 overruns:0 frame:0
TX packets:1286 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:451512 (440.9 Kb) TX bytes:170314 (166.3 Kb)

root@router:/home/cody_harders#

Now, I have tried many scripts for IPMASQ.. but I JUST can't get it to work.. could someone write a script for me (Remember I'm an idiot) to share
"ppp0" to "eth0" and "eth1" using the IPs in the ifconfig I posted above.. please.. I've been struggling with this for days..

Thanks, Cody.

curdanet · 09-07-2003, 11:39 AM

ptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
echo "1" > /proc/sys/net/ipv4/ip_forward

roguefoxx · 09-07-2003, 11:41 AM

That's all? Neat. I'll go try it

curdanet · 09-07-2003, 11:48 AM

is
iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
echo "1" > /proc/sys/net/ipv4/ip_forward

i ommited the "i"
excuse me

Carlos

roguefoxx · 09-07-2003, 11:52 AM

Heh. Doesn't work either way. My Windows box which is hooked up via crossover cable isn't receiving internet, it's plugged into eth0, and has it's gateway set to 192.168.0.1 .. It can SSH into my router and such, just no internet.

curdanet · 09-07-2003, 11:59 AM

Excuse me...
I didn't understand well what did you tried to do...
I guess your configuration is INTERNET<-->LINUXBOX<--->WINDOWSBOX
is this correct?
What are you using to access to your ISP, ADSL? or Dialup MODEM

I need this to help you

Carlos

roguefoxx · 09-07-2003, 12:02 PM

Alright

.

My box is acting as a switch/router. It has dialup modem in it, connected to my ISP, therefore generating the connection "ppp0".

I have 2 ethernet cards. One to connect to my dad's computer (XP), and one to connect to my computer (XP).. I'm trying to share ppp0 to them. Up above, I have the IPS set for my ethernet cards.. so that's what I need the iptable entries to go by..

P.S: Sorry if my last sentence didn't make sense, I'm really n00by. :P

curdanet · 09-07-2003, 12:04 PM

Try this:
ping 216.109.118.69
if it works the problem is that you didn't setup your DNS information in your windows box. It should be the same of your ISP.

If it doesn't tell me what program are you using to connect to your isp in your Linux

roguefoxx · 09-07-2003, 02:08 PM

Woo! Thank you so much! It's fixed! All of it! Woohoo!!