Another thing to look at:

Are you running WINS on the Samba server?  If this is an older/busy
server, turn off WINS, as it can be a serious clock cycle eater.  This
happened to me, although I'm running a 486 as a small department file
server (cheap, yet quite effective!).  With WINS on, the system
initially worked, but after a short while, began dropping connections.
Turned off WINS, edited the hosts file, and now there are no more
problems.

================================
Al Adcock
Information Technologies Manager
BMC Technologies
1911 Cauley Avenue
Panama City Beach, FL 32407
Tel:  850-249-2222
Fax:  850-249-2226
[EMAIL PROTECTED]
http://www.bmctechnologies.com
ICQ:  179154

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Pete Peterson
Sent: Wednesday, March 06, 2002 1:07 PM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: Re: network selective packet loss



> Message: 2
> Date: Tue, 05 Mar 2002 14:55:47 -0700
> To: [EMAIL PROTECTED]
> From: Aaron M Daley <[EMAIL PROTECTED]>
> Subject: network selective packet loss
> Reply-To: [EMAIL PROTECTED]
>
>
> > I get the following ping info on my mail server and now one of our
file
> > servers as well indicating that we may have been hacked or there's a
> > virus spreading. Here are two ping results from the same machine.
Ping
> > results from the file server are identical.<br><br>
> > PING 192.168.10.5 (192.168.10.5) from 192.168.10.60 : 56(84) bytes
of
> > data.<br>
> > 64 bytes from 192.168.10.5: icmp_seq=0 ttl=128 time=0.8 ms<br>
> > 64 bytes from 192.168.10.5: icmp_seq=1 ttl=128 time=80000.6 ms<br>
> > 64 bytes from 192.168.10.5: icmp_seq=2 ttl=128 time=160000.3 ms<br>
> >  .
> >  .
> >  .
> > No the interesting parts.<br><br>
> > 1. This only happens when I ping from the problem server to another
> > server or workstation on our private network. If I ping anything
else, it
> > comes back fine.<br><br>
> > 2. If I ping either of these machines from any other computer on our
> > private or public network the results are perfect.<br><br>
> > 3. I've tried using different NIC's and also different switches.
I've
> > taken down the firewall on both machines as well as verified there
was
> > nothing in hosts deny or allow that might be blocking
traffic.<br><br>
> > 4. The problem was intermitent until a few days ago<br><br>
> > 5. On the mail server mail con still be retrieved fro, anywhere
except
> > the private side network. If you're on our private side network then
you
> > can still receive mail&nbsp; but it takes about 3 minutes to make
the
> > connection, once the connection is made the mail comes through just
fine,
> > as if there was no packet loss what so ever.<br><br>
> > 6. The file server can no longer be connected too from a PC on the
> > private side network. We're using samba on the file server. If
you're
> > using a mac on our private side network it can still connect just
fine as
> > if there was no packet loss what so ever.<br><br>
> > <br>
> > OK so anyone ever seen anything like this before?<br><br>

You didn't mention whether it mattered whether you specified the target
machine by name or by IP.  If it only happens when you specify by name,
check /etc/resolv.conf and make sure it's specifying properly
functioning
name-servers.  I had a similar problem a few weeks ago that turned out
to be caused by a resolv.conf error.


--
        pete peterson
        Teradyne, Inc.
        7 Technology Park Drive
        Westford, MA 01886-0033

        [EMAIL PROTECTED] or [EMAIL PROTECTED]
        +1-978-589-7478 (Teradyne); +1-978-589-2088 (Closest FAX);
        +1-978-589-7007 (Main Teradyne Westford FAX)







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