Thanks bigtime for your information Michael. I indeed forgot to give my NIC card a different IP than the actual machine, and since my knowledge of 192 addressing is weak, I had no idea about the 192.168.0.0 address not working. That is obviously going to help me out too. Spoiled with statics over the years.
The internet service has assigned the one static address starting with 216.239 to the NT mail server.
I am going to give this a whirl right now - working on getting them changed over to DSL, but they are slow to do so.
I will be responding as soon as I get a client to connect - I hope their switch does not give me issues. This hub I got accepts pretty much any connect, over the years.
Thanks again Michael.
Kirby
On Tuesday, July 22, 2003, at 12:42 PM, Michael Gargiullo wrote:
WOW... OK...
Kirby
Let's address things one at a time if we can here.
On Tue, 2003-07-22 at 15:26, Kirby Clements wrote: <SNIP>
I have assigned the linux firewall a 192.168.0.0 address, being that I don't see that address taken on the network.OK... 192.168.0.0 won't be seen on the network. That is your "Network Address". Like wise, 192.168.0.255 is your "Broadcast address".
Give your Linux box's NIC an IP from this range: 192.168.0.1 - 192.168.0.254
We'll get back to this in a minute.
My issue is that even with
the firewall off, I can't get a connection with the other machines.
Granted this is a scenario b/c I have been trialing this on my own
network first, so I don't take down the actual NT network.
I am using the internet services DNS servers, and have assigned a
machine of mine a 192.168.0.1 address.
The ethernet on the firewall is configured with no gateway since I have
read PPP does not need one ( I tried it the other way but still no luck
) and like I stated, the linux box is connecting fine. I just cannot
seem to get any of my other machines with 192.168 addresses to connect
via their ethernet to the linux box's ethernet, via a dumb hub.
Ok your firewall needs an IP address. Let say it's 192.168.0.2. Your NT clients should now have network information like this:
IP Address: 192.168.0.50 (anything but 1 or 2) Subnet Mask: 255.255.255.0 Gateway Address: 192.168.0.2 (The linux box)
DNS: As provided by your ISP
I now know I need to masquerade the packets on the network, since they are 192.168 addresses. I have set that up in /etc/sysctl.conf. When I try to connect from a macintosh or windows box, using the linux PPP 56K connect, and using the internet services DNS info, I get nothing.
Yeah you'll need to MASQ, but lets deal with basic networking first.
At this point you should be able to ping the NT client from the firewall.
(Just checking, but what IP range does your ISP give out? You don't want to use the same range as them).
A "dig" either gives me "operation timed out" or "host is down". So, after 10 gruelling hours last night, I am trying to figure out what to do. I have also gone to the point to put client machines 192.168 addresses and names in the /etc/hosts file of the linux box, thinking that might be the trick.
Just try with IP addresses
ping 192.168.0.50
ping 192.168.0.2
What else I have noticed is that in the linux logs, the dialup company used by the internet service (outsourced dialup service) is assigning random DNS server IP's to the linux box. Is this the issue?
Don't worry dhcp is a good thing. They may have 6 DNS servers running and assign a random 2 out of 6.
I will stop here b/c obviously this is enough info on this issue at the
moment. Would purchasing a static IP for the linux box help?
What am I not doing? I have now got 24 hours to find out :)
Get some sort of broadband connection. 25 users on a 54k dial up will be murder. See if you can get a cable modem if you want cheap access.
Kirby
Hope this helps...
Good luck...
Oh for the firewall part, check www.netfilter.org
-- Michael Gargiullo <[EMAIL PROTECTED]> Warp Drive Networks
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