William Shu wrote:
--- John Summerfield <[EMAIL PROTECTED]> wrote:
William Shu wrote:
Hi,
I have 3 issues related with using my wireless router, and
making sure changes take effect at boot time.
ISSUE 1: Obtaining DHCP from router
My wireless router can be used if my machine (an hp
pavillion
5000 series laptop) is given a fixed IP address. For this to
happen, the ipW3945d service (driver) has to be activated so
that the wireless connection is associated with the eth1
interface. (From the HOWTO's this is done so that sofware
that
can change certain wireless connectivity parameters into
unlawful values cannot be tampered with by a user, which is
an
FCC legal requirement) eth0 is associated with the wired
network
interface.
My router may issue DHCP IP addresses, but I cannot use the
wireless connection because I would need the issued IP
address
to configure the eth1 interface needed for the connection!
Unfortunately, the router cannot issue both fixed and DHCP
IP
addresses at the same time! Furthermore, the accepted
address
range set for the router need not be known by the user, who
need
not have root/admin access.
QUESTION: How can I configure my eth1 interface so that it
can
get a DHCP IP address from the router?
What brand/model of wireless router? I failed to get a dlink
working,
though I've had n problems with Apple's airports or a linksys.
The router is a TRENDnet TEW432BRP
Someone with particular knowledge of that device might respond now; I've
never heard of it.
(I closed the former thread "direct network cable connection
between two SL5 machines" to start this thread of limited scope
-- hope the correct course of action! -- but it seems the mail
got corrupted/never got through. I now hope to give one final
feedback to close both threads!)
I don't use the builtin dhcp server, but I do use dhcp.
Any hints? The problem, as I understand it, is that
system-config-network does not "see" the eth1 interface until it
has an IP address and so I cannot even configure it to accept
dhcp, the same way eth0 can be configured. This explains why I
had to use the individual commands "/sbin/iwconfig" and
"/sbin/ifconfig" on the command line.
I also use a variety of distributions; the only NIC I can recall for
sure I configured with system-config-network is Atheros-based, and the
PCI information for those say "this is an ethernet NIC" which means it's
not handled like any other.
If system-config-network won't configure a wireless NIC until it's got
an IP address, then that's a bug.
However, do check that the driver for the device is loaded and the
device is functioning properly before running system-config-network. I
would expect that to mean just that the driver's loaded, and its
firmware is loaded. The latter should "just happen," but check for any
messages.
ISSUE 2: Adding configuration start-up commands at boot time
The following are actually more of linux boot-related
questions:
I used /sbin/chkconfig to start the ipw3945d service at boot
time. However, the initialisation commands
# /sbin/iwconfig eth1 essid "doit1wlan" channel 6 rate auto
txpower auto
I would not specify the channel on a client.
Okay, I will remove the channel and try it out again.
# /sbin/iwconfig eth1 key open s:xxxxx
what's that work "open?" "key" is supposed to be followed
immediately
by the key.
From iwconfig man page, it seems security has two modes: open vs
restricted; I did try all options, including "no option".
Restricted seems to be the same thing as what is termed "shared"
on the Trendnet. Moreover, I read somewhere (can't give
reference) that if the network is "open", then the WEP
encryption security will be guaranteed both in the wireless and
wired segment of the LAN.
I'm afraid I just dabble in all these, following the man pages
and any other documentation available, and the above parameters
are combinations that ended up working!.
You realise that a WEP key can be cracked in under two minutes, don't you?
"open" means no security. Usually. Don't follow the word "open" with a key.
# /sbin/ifconfig eth1 up 192.168.110
which are used to configure the device are lost.
QUESTION: How should I save these commands so that they are
automatically executed at time? (.bashrc does not seem
right!)
You can put them in /etc/rc.local but that's not normally required. It
has the disadvantage of always running the command, and that might not
what you want.
If you use RH's configuration tools, it should all work. The
information's stored in /etc/sysconfig/network-scripts and
it's possible
to edit the files with a little vim, but I prefer to see
something to
work on.
As explained above, system-config-network does *not* see the
eth1 interface.
I feel slightly un-nerved editing files in the
/etc/sysconfig/network-scripts. Are they not automatically
generated? Or should I just create a shell script and add to the
directory?
If you can make system-config-network see the wireless NIC by any means,
then create a configuration using it. The files it creates are simple
text files, and you probably will feel fairly easy about using vim on
them once you see their contents:-)
ISSUE 3: Controlling Services across sessions
Sometimes, when my laptop runs out of power and shuts down,
the
subsequent reboot restart or resume some of the programs
(processes) that were running before. This does not happen
when
I shutdown the system. I have deleted the processes from the
current session services, but they still re-appear on
subsequent
boots. (such processes seem to be hvve unusual names, id's
or
directory paths appended/prepended to them). I think at one
time
in the distant past, pm-hibernate or pm-suspend had been
called.
If the system hibernates, then it should resume to the same
state it was
in before. By definition.
QUESTION 1: How can I turn this on or off -- at my
discretion?
I have in the past had success setting my choices in KDE>
I am on gnome. What commands are actually given?
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Cheers
John
-- spambait
[EMAIL PROTECTED] [EMAIL PROTECTED]
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