Re: A basic question about networking

veegnu@xxxxxxxxx wrote:
Hello,

I would like to ask a very basic question about general networking.
Please let me know if you think this question should be asked in a
different newsgroup.

I am running VNC server on a linux machine. I have started a VNC
session. Then I connect to this session by running vncviewer from the
same machine. Will all the traffic generated pass on to the network I
am connected to? Or will the TCP/IP stack recognize that the targeted
machine for IP packets is the same as the originating machine and not
send out the packets?

In fact this question can be asked in the context of any general
client/server. Say I run a web server and connect to it from a browser
on the same machine, will the traffic leak onto the network?

Thanks in advance for your responses.

vkj


The Linux TCP/IP protocol stack is smart enough to
route packets addressed to any of the local addresses
via the loopback interface, lo.

This means also that you cannot test the Ethernet
interface or NIC driver using self-addressed
packets.

HTH

--

Tauno Voipio
tauno voipio (at) iki fi
.

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