Hi,

I'm having some problems with a machine running Bering 1.0-rc2 with
Shorewall 1.2.13 (running from a hard drive) and I'm not sure how to tell if
it's hardware or software related. My ISP claims that our cable modem has
been up for over two weeks and are saying they're not the problem. For
the first month we had the connection, we didn't have any problems. Then the
ISP changed their network around and we've had problems ever since. The
latest problems started about a month ago - several times throughout the
day, the clients will be unable to connect to the Internet. After about 5
minutes, they are able to reconnect again without any changes being made.
There are only about 15 users and they only surf the web and pop their
email - there are no massive downloads or any other intensive traffic going
on. Since our ISP is insisting that it's not a problem on their end I'd
like to examine everything on our end.

The machine is a 200MHz Pentium with 64MB of RAM and two 3com 3c905 NICs.
I didn't make any modifications to the Shorewall 2-interface settings. The
only setting changes I made were in the Network configuration menu for:
1) Interfaces - set eth0 to the static address given by our ISP and eth1 to
the internal address of our firewall.
2) hosts - added the internal IP address and name of the router
3) hostname - changed the hostname to match hosts
4) resolv.conf - added 2 nameserver lines: one pointing to the internal IP
address and one pointing to our ISP's DNS server

I also modified the modules in the Packages configuration menu to include
just the 3c59x modules.

I'm going to replace the network cards with a couple of Intel PRO/100 cards.
If that doesn't fix the problem, what log files can I check for potential
problems, e.g., what log file do I check for errors with the network cards?
My ISP told me to check my ARP tables for excessive entries. Is that a
possibility? Also, if I want to upgrade some of the packages, e.g.,
Shorewall, what's the easiest way to do it and still preserve my settings?

Thanks!

-sr




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