Question about my Local Network, HELP PLEASE

TiMo · 08-11-2003, 06:44 AM

Hello , my problem is this:

I Have 3 Computers in my Home , all in a local Network, let me explain it:

1* Windows XP (Internet Server) : Address #200.200.0.1 : This machine i use to SHARE internet between the other pc's of my house, i do it using a HUB and WINGATE.

2* My Linux Box : Mandrake 9.1 : Address #200.200.0.2 : The problem i got here is, i CANT configure this pc to use my WINDOWS MACHINE (200.200.0.1) , I Dont know how to setup linux to use 200.200.0.1 as the INTERNET SERVER.

Now im connected on my linux box (200.200.0.2) but specificing in Mozilla that the proxy Server is 200.200.0.1 and works great. But in the Terminal Programs like : wget , lynx , BitchX , ftp etc...
i cant connect because i dont know how to SPECIFY that 200.200.0.1 is the proxy server for internet connection.

I cannot ping external webs only local IP'S:

Code:

[root@localhost network-scripts]# ping linuxquestions.org
ping: unknown host linuxquestions.org
[root@localhost network-scripts]#

Here is the ifconfig i got:

Code:

[root@localhost network-scripts]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:E0:4C:92:98:12
          inet addr:200.200.0.2  Bcast:200.200.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:12871 errors:0 dropped:0 overruns:0 frame:0
          TX packets:11962 errors:0 dropped:0 overruns:0 carrier:0
          collisions:3734 txqueuelen:100
          RX bytes:9339366 (8.9 Mb)  TX bytes:1465278 (1.3 Mb)
          Interrupt:22 Base address:0x4c00

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:1902 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1902 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:1094353 (1.0 Mb)  TX bytes:1094353 (1.0 Mb)

3* The Third machine is a Windows XP laptop Address : 200.200.0.3 i already configured it to resolve that 200.200.0.1 is the proxy for the internet connection and works great.

I Hope you can Help me with this , i will be very happy

Greetings Timo

codecruncher · 08-11-2003, 07:05 AM

Unless I am totally off today...(which is possible) then you mentioned my #1 enemy Proxy multiple times in your post..

A prosy server does nothing more than sending the HTTP request he receives from you, to the actual server, and then back to you. (with some caching in between...)
anyways... you cannot ping thourgh a proxy. You will need to configure your WinXP machine as an Gateway. AFAIK it can do that by sharing the network connection with the other network connection (not sure - it does work with W2k)
Then Windows will actually forward packets for your network.

But a proxy will not. A proxy only will forward http requests.

best regards
Klaus

PS: Why don't you use linux as a gatway (internet sharing) to begin with?

maxut · 08-11-2003, 07:10 AM

u cant ping external servers. cos u use a proxy server. i advise u to use NAT. first uninstall wingate in xp box. rigth click on my network places choose properties. it will open a new window. right click on your internet connection, choose properties. choose advanced option and enable internet connection sharing. xp makes your LAN ip 192.168.0.1 also enables DHCP server. on linux box choose automatic assign ip from DHCP or BOOTP.
u may ping external server from linux box now.

TiMo · 08-11-2003, 07:13 AM

Hi man , does it work using HUB?

And can u explain me more detalied?

What shall i do in The server box (XP) and my linux box
Then the laptops what shall i do?

HELP ME PLZ

codecruncher · 08-11-2003, 07:26 AM

Well, it has nothing to do withe hub. But to answere your question:
Yes, it will work using a hub.

A hub will just connect your machines with each other. But one of them has to know what to do with packets which are not dealt with within your lan. Therefore you need a gateway (WinXP in your case).

When you go to network connections, you should be able right klick on the one Ethernet adapter which is connected to the internet. There should be a tab somewhere called sharing. Then simply share the connection with the other ethernet adapter.

Then reconfigure all your machines to use a DHCP server and all should be well.

But this really is a question for some windows forum....

best regards
Klaus

TiMo · 08-11-2003, 07:28 AM

Thank You very much

But the last Question, how i configure the dchp in my linux , is too dificult?

codecruncher · 08-11-2003, 07:35 AM

To get Linux to use the DHCP server, all you have to do (in RedHat):

Code:

edit the file /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
BOOTPROTO=dhcp
ONBOOT=yes

Depending on your distro, the file may be somewhere else.

best regards
Klaus

TiMo · 08-11-2003, 07:37 AM

I got this:

Shall i put the same you put before?? deleting all the other variables?

Code:

[timo@localhost timo]$ cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
BOOTPROTO=static
IPADDR=200.200.0.2
NETMASK=255.255.255.0
NETWORK=200.200.0.0
BROADCAST=200.200.0.255
ONBOOT=yes
[timo@localhost timo]$

codecruncher · 08-11-2003, 07:42 AM

Yup, but make a backup of the file first. Just in case you need to fall back to this solution.
Make sure your WinXP does the connection sharing first.
The best way to do this is to try it with your notebook first. Then change your LinuxBox.

Have fun!

Klaus