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Date:      Thu, 7 Dec 2000 09:25:12 -0600 
From:      "Zaitsau, Andrei" <AZaitsau@panasonicfa.com>
To:        "'cjclark@alum.mit.edu'" <cjclark@alum.mit.edu>
Cc:        'Rick Hamell' <hamellr@1nova.com>, "'freebsd-questions@freebsd.org'" <freebsd-questions@FreeBSD.ORG>
Subject:   RE: Small network problem...
Message-ID:  <054F7DAA9E54D311AD090008C74CE9BD01F1E771@exchange.panasonicfa.com>

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Okay, You are right. FreeBSD box has 2 NICs. One goes to the HUB and one
goes to the ADSL modem. The rest of the computers are going to the HUB also.

> Gateway: 192.168.0.1 (FreeBSD 3.4)
> #1 192.168.0.2 (Win2k pro)
> #2 192.168.0.3 (FreeBSD 4.2)
> #3 192.168.0.7 (OpenBSD 2.8)
> #4 192.168.0.13 (Sparc/OpenBSD 2.8)

They are all on internal network. I will sent output of the commands later
this evening as soon as I get home. But still When I SSH to any machine
running OpenBSD from Win2K, FreeBSD drops connection after SSH session is
established.
Andrei.


On Wed, Dec 06, 2000 at 12:41:40PM -0600, Zaitsau, Andrei wrote:
> I checked Subnets and IP's everything looks ok.
> Gateway: 192.168.0.1
> #1 192.168.0.2
> #2 192.168.0.3
> #3 192.168.0.7
> #4 192.168.0.13
> 
> Subnet for them is 255.255.255.0
> 
> So I do not know what to blame....
> Any suggestions? I do not think I should blame HUB or ADSL modem...

What is the physical setup? Just to be sure, I am guessing the FreeBSD
machine has two interfaces. One is in the hub and one in the ADSL
modem. And I assume the OpenBSD and Win2k machines are both on the
internal net? Just for future reference, which machine is which in the
list of IPs above? Can the gateway machine itself use the Internet
connection? What is the output of,

  # ifconfig
  # arp -an
  # netstat -rn
  # ipfw show

On the gateway?


> > I have a small problem. I have 5 computers at home all connected via
hub.
> > They are all connected to the internet via gateway running FreeBSD 3.4
> using
> > ADSL connection. The problem is when I try to open SSH session from
Win2K
> > pro machine to SparcSation IPC running OpenBSD 2.8, when SSH session
> between
> > these 2 machines is established. Gateway computer (FreeBSD) drops ADSL
> > connection, cutting the rest of the network from the internet. If I
reboot
> > gateway machine it does not connect to the internet. And until SSH
session
> > is terminated, gateway can not connect to the internet.
> > I have no Idea what could be the reason why it's doing it to me. Can
> anyone
> > help me or explain me what could be the problem?
> 
> 	I had a similiar problem once, it turned out to be that the
> machines were on different subnets. Ie. they should both have
> 255.255.255.0 as the netmask. Then the IP addresses should be something
> like 192.168.1.x instead of of 192.168.x.x :)
-- 
Crist J. Clark                           cjclark@alum.mit.edu


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