Folks,
I've been lurking for a bit, and I think I've read enough to comfortably
post, knowing that I'm a networking lamer. :) Please pardon the inevitable
foolish bits.
I'm running RH6.1, just out of the box, on a slapped-together PII running
kernel 2.2.12-20. It has 2 NICs, both of which I have installed and running
just fine. One of them has a dedicated IP -- let's call it 216.12.17.49.
The other NIC has a silly Windows IP, 172.16.0.50. It is the fifth machine
on a previously all-Windows network.
This machine is running a firewall with a standard set of ipchains rules.
(The Anthony Ball/Mark Grennan one.) Following the advice contained within
the HOWTO, I had it up and running quite quickly. Of the 5 machines on the
network, we've configured 4 of them, all running Win98, to use this
firewall.
2 of these machines can't access the Internet, the other 2 can. All are
recent-model Dells with barely-altered installs of Win98. We've given them
a gateway address of 172.16.0.50. We can ping any IP, and DNS resolutions
work just fine. But http, ftp and pop don't work. Only on these two
machines, on which I'm unable to discern any variation from the other two.
I should mention that all services (http, ftp, pop, etc.) work fine if
they're going to the local server at its local IP address.
The two that work have the IPs .0.10 and .0.20, and the two that don't work
are .0.30 and .0.40. Coincidence? I don't know.
I put up the firewall script at http://waldo.net/misc/firewall.html, as I
assume that my error is in there. I've run plum out of things to do on the
client side, but, with Windows, you never know...sometimes it just takes a
few more reboots. :)
If anybody's got any ideas on this one, I'd sure appreciate it. I think
I've exhausted the available FAQs and HOWTOs on this one. (And, yea, even
the Mini-HOWTOs. :)
Thanks, folks.
Best,
Waldo
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