[ale] home networking difficulties

[Geoffrey]

Andrew Grimmke wrote:
> I know this has been kind of exasperating.  I really
> appreciate all you help.  I'm afraid the wife is going
> to kill me soon If I don't get that windows box online
> ;)
> 
> I will give the "external loop" configuration a try
> this evening.  That would isolate it to the Windows
> box, for sure, although it is smelling more and more to
> me like that is the culpret.
> 
> As for different speeds, I bought everything to be
> 10/100 and I believe all the cards are on auto, so they
> should be at 100 mbps.  I guess I could check.

The only reason I asked that is because I had a problem with a firewall 
a while back, in that the card was 10/100, and worked fine when 
connected to a 10mb hub.  When I hooked it to a 100mb switch, it would 
not work.  I spent all kinds of time trying to resolve that issue and 
never did.

> 
> On Thu, 22 August 2002, Geoffrey wrote:
> 
> 
>>You might try networking the Linux box to itself. 
> 
> That
> 
>>is, set the two 
>>nics to be in the same subnet and connect them both to
>>the hub.  This 
>>way you might reduce the possible issues
> 
> substantially.
> 
>> From that 
>>point, you could verify the cables/cards are
>>functional.  Is it 
>>possible, the win box and linux box are trying to talk
>>different speeds? 
>>  (one 10 the other 100).  I'm grasping now (or
>>gasping??).
>>
>>Further comments below.
>>
>>Andrew Grimmke wrote:
>>
>>> 1.  The hardware is working, at least to some
> 
> degree.
> 
>>> arp apprear to work fine (according to the
> 
> tcpdump and
> 
>>> windump outputs), it's icmp that is not working.
>>
>>I don't know that we can say this definitely just
> 
> yet. 
> 
>>I would have 
>>expected that once you shutdown the firewalls on both
>>machines that you 
>>should have been able to either telnet or ping from
> 
> one
> 
>>to the other in 
>>at least one direction.
>>
>>> 
>>> 2. I have sent and recieved icmp packets from the
>>linux
>>> box in the past.  So, although I initially
> 
> thought
> 
>>that
>>> maybe linux was blocking ping responses, I am
> 
> thinking
> 
>>> that's a long shot now. 
>>
>>Agreed, since you did turn off the firewall and make
>>the same attempt.
>>
>>> 
>>> 3. I have had trouble with icmp on the windows
> 
> box
> 
>>> before.  I remembered this recently.  When I
> 
> first got
> 
>>> broadband (and was only running windows) I tried
> 
> to
> 
>>get
>>> a friend to ping me with no luck.  I can ping
> 
> myself
> 
>>> (192.168.1.2) internally, however.
>>
>>But pinging yourself more then likely goes the local
>>loop (127.0.0.1) so 
>>it never touches the nic, wire, or that subnet.
>>
>>> 
>>> 4. The Windows firewall is off.  Although it is
> 
> still
> 
>>> installed, I have removed it from the startup
> 
> routine.
> 
>>I guess you could uninstall it to insure they're not
>>trying to 'protect 
>>you from yourself' which seems to be a common thread
>>through windows 
>>software.
>>
>>> 
>>> I am starting to think this is a Windows
> 
> problem. 
> 
>>Like
>>> some kind of "stealth mode" where it
> 
> ignores icmp
> 
>>> packets.  I could find nothing about this on the
> 
> net,
> 
>>> unfortunately.  And of course this is just a
>>hypothesis.
>>
>>See note above. :)
>>
>>
>>
>>-- 
>>Until later: Geoffrey		esoteric at 3times25.net
>>
>>I didn't have to buy my radio from a specific company
>>to listen
>>to FM, why doesn't that apply to the Internet
>>(anymore...)?
> 
> 
> Andrew Grimmke
> Marietta, Georgia
> 
> 


-- 
Until later: Geoffrey		esoteric at 3times25.net

I didn't have to buy my radio from a specific company to listen
to FM, why doesn't that apply to the Internet (anymore...)?


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