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April 2008

SCIENTIFIC-LINUX-USERS@LISTSERV.FNAL.GOV

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Subject:
From:
William Shu <[log in to unmask]>
Reply To:
William Shu <[log in to unmask]>
Date:
Tue, 1 Apr 2008 12:54:33 -0700
Content-Type:
text/plain
Parts/Attachments:
text/plain (79 lines)
Hi,

I have secured a network cable (rj45 heads) to link a laptop
directly to a desktop machine which has *no* access to a
network. The desktop has TWO network cards and an rj11 socket
(for telephone). The heads of the network cable have been
rewired so that a switch or hub is *not* used. The technician
tested the cable by pinging between 2 Windows XP machines, but
knows nothing of linux and unix-based machines. Unfortunately,
when I do a ping from laptop to desktop or vice-versa, I get the
message "Destination Host Unreachable" (See sample output
below).

(I know next to nothing about networks and so I hope the
questions below still make sense!)

QUESTION 1: How should I go about having the desired
peer-to-peer connection, without trying to use an Internet
Service Provider, or start managing a local area network. I
understand linux is a "network operating system" and so nothing
special needs to be done. That is, the desired service (ftp,
ssh, etc) is requested and used, if it is set up on both
machines.

QUESTTION 2: How can I install a wireless router on the above
desktop,  which has a modem card, but must not be linked to
either the telephone or the internet!. The router (a TRENDnet
TEW432BRP) has a windowsXP and requires:
    * A Web browser: Internet Explorer (5.0 or above) or
netscape Navigator (4.7 or aove),
    * Computer With network adapter installed
    * Broadband internet
    * Installed cble or DSL modem (Statitc/Dynamic/PPPoE
connection)


Thanks in advance,

William.

-----------------[ Sample output ]--------------------
[wss@hpsl50 ~]$ ping tinysl50.doit
PING tinysl50.doit (192.168.0.1) 56(84) bytes of data.
From hpsl50.doit (192.168.0.3) icmp_seq=1 Destination Host
Unreachable
From hpsl50.doit (192.168.0.3) icmp_seq=2 Destination Host
Unreachable
From hpsl50.doit (192.168.0.3) icmp_seq=3 Destination Host
Unreachable
From hpsl50.doit (192.168.0.3) icmp_seq=4 Destination Host
Unreachable
From hpsl50.doit (192.168.0.3) icmp_seq=5 Destination Host
Unreachable
From hpsl50.doit (192.168.0.3) icmp_seq=6 Destination Host
Unreachable

--- tinysl50.doit ping statistics ---
8 packets transmitted, 0 received, +6 errors, 100% packet loss,
time 7025ms
, pipe 3


[wss@hpsl50 ~]$ cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1       localhost.localdomain   localhost       hpsl50
::1     localhost6.localdomain6 localhost6
192.168.0.3     hpsl50.doit     hpsl50
192.168.0.1     doit    doit
192.168.0.1     tinysl50.doit   tinysl50.doit
[wss@hpsl50 ~]$ 




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