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Noob networking question - why does \\DESKTOP\pubshare\readthis.txt not work but \\192.168.1.5\pubshare\readthis.txt work just fine?



 
 
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  #1  
Old July 13th 18, 01:11 AM posted to alt.comp.os.windows-10
Char Jackson
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Posts: 9,368
Default Noob networking question - why does \\DESKTOP\pubshare\readthis.txt not work but \\192.168.1.5\pubshare\readthis.txt work just fine?

On Thu, 12 Jul 2018 20:48:09 -0000 (UTC), Arlen Holder
wrote:

deleted lots of lines related to resetting the Windows firewall and
network stacks, all of which were most likely unnecessary but otherwise
harmless

After rebooting, I have to reset the Ethernet adapter (which, as I
mentioned, is actually wired to a powerful transceiver but it 'acts' like
Ethernet does).

admin ncpa.cpl
Ethernet: Properties Internet Protocol Version 4 (TCP/IPv4)
Properties General
I have to set an arbitrary IP address as the transceiver is set to
be a bridge so the Windows computer won't get an IP address automatically.


Bridges can be configured to pass DHCP traffic, so the sentence above is
probably incomplete, (i.e., doesn't make sense as written), especially
the part about manually configuring an "arbitrary" IP address. What's
arbitrary about it?

If I set the Preferred DNS server to 8.8.8.8, the nslookup reports:
admin nslookup
Default Server: google-public-dns-a.google.com
Address: 8.8.8.8
If I set the Preferred DNS server to 192.168.1.1, that changes to:
admin nslookup
Default Server: UnKnown
Address: 192.168.1.1


Right. The nslookup program is simply reporting info related to your
configured DNS server. It tries to also do a reverse lookup to get the
actual hostname, but your 192.168.1.1 device apparently doesn't have a
DNS entry, (why would it), so nslookup reports it as "UnKnown". No
mysteries or surprises there.

It doesn't seem to matter what I set the Ethernet gateway to since both the
router and Google's DNS IP addresses work to connect the PC to the
Internet.


DNS isn't involved in connecting you to the Internet, and your Default
Gateway is indeed a very important setting. It matters.

So I don't think the nslookup result matters snip


That's progress.

Note that I'm gently guiding you back to center when you go off the
rails as you try to learn the basics of networking. I'm intentionally
not handing you a solution because you don't tend to accept such things
gracefully. I.e., you tend to attack the people who help you.

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  #2  
Old July 16th 18, 05:54 PM posted to alt.comp.os.windows-10
Arlen Holder
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Posts: 390
Default Noob networking question - why does \\DESKTOP\pubshare\readthis.txt not work but \\192.168.1.5\pubshare\readthis.txt work just fine?

On 12 Jul 2018 16:11:13 GMT, Char Jackson wrote:

Bridges can be configured to pass DHCP traffic, so the sentence above is
probably incomplete, (i.e., doesn't make sense as written), especially
the part about manually configuring an "arbitrary" IP address. What's
arbitrary about it?


What's paradoxical to me is that the WiFi transceiver set up as a bridge is
passing, by default, the *results* of a NETBIOS broadcast, but not the
NETBIOS broadcast itself.

That is, the PC connected to the bridge can *send* NETBIOS broadcasts and
then connect by the computer name to another desired PC - but - that same
PC connected to the bridge can't *receive* NETBIOS broadcasts from that
other PC.

Go figure.

If someone who knows NETBIOS can explain *that*, it would be enlightening.
 




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