[CALUG] asus wifi and yahoo email

[Bryan J Smith]

Fedora's NetworkManager supports modems, VPNs, etc...

If you want to use multiple interfaces with NetworkManager, you have to take 
care of a few things.  Default gateways typically define which interface goes 
out to the Internet.  So if you have a LAN or WLAN that provides a default 
gateway, then it will prefer the LAN or WLAN over dial-up.  NetworkManager is 
very good about picking the best speed and lowest latency interfaces.

So if you're LAN or WLAN is sharing out a default gateway, then that's why it no 
longer uses your dial-up connection's default gateway.  ;)

The easiest way to deal with multiple interfaces is to use static IP assignments 
for interfaces that are known.  This would include your LAN or WLAN.  For such, 
then you _do_ use system-config-network.  You will explicitly tell it to not let 
NetworkManager manage the device.

All system-config-network does is setup system-wide 
/etc/sysconfig/network-manager/ifcfg-* scripts.  E.g., my Thinkpad X201 (MAC 
addresses have their last 24-bit zero'd for privacy, the first 24-bit are 
IEEE-assigned per vendor) ...

  $ cat /etc/sysconfig/network-scripts/ifcfg-eth0
  # Intel Corporation 82577LM Gigabit Network Connection
  DEVICE=eth0
  TYPE=Ethernet
  HWADDR=F0:DE:F1:00:00:00
  ONBOOT=no
  NM_CONTROLLED=yes
  BOOTPROTO=dhcp
  USERCTL=no
  IPV6INIT=no

  $ cat /etc/sysconfig/network-scripts/ifcfg-wlan0 
  # Intel Corporation Centrino Ultimate-N 6300
  DEVICE=wlan0
  TYPE=Wireless
  HWADDR=00:24:D7:00:00:00
  ONBOOT=no
  NM_CONTROLLED=yes
  BOOTPROTO=dhcp
  USERCTL=no
  IPV6INIT=no

Note the following lines ...

- ONBOOT=no
- NM_CONTROLLED=yes
- BOOTPROTO=dhcp

For a static assignment that attempts to connect at boot, for wired ...

- ONBOOT=yes
- NM_CONTROLLED=no
- BOOTPROTO=static
- IPADDR=192.168.x.x
- NETMASK=255.255.255.0
- # DO # NOT # SET!!! # GATEWAY=

For wireless, there are more details such as SSID, key, etc...  The 
system-config-network tool will set these for you.  You can then look at the 
resulting file in /etc/sysconfig/network-scripts/ifcfg-* for the interface.

NetworkManager is an _user_-specific tool that is part of GConf (think of it as 
the "GNOME registry"), which can store more dynamic information (including keys, 
like for WLAN w/WPA), passwords and other things.  That's why it's preferred for 
dynamic assignments.  It's not always a good idea for users to share such 
information either (remember, Linux has always been multi-user, 
Internet-focused).

E.g., I stick in a 3G UTMS 7.2Mbps AT&T or tether my T-mobile Android phone.  
NetworkManager dynamically detects such, and provides a new interface for 
connecting.  I also have OpenVPN and IPSec style VPNs.

NetworkManager has PTPP plug-ins as well.  There are RPM packages for adding 
such to Fedora.

-- 
Bryan J  Smith             Professional, Technical Annoyance 
Linked Profile:           http://www.linkedin.com/in/bjsmith 
------------------------------------------------------------ 
"Now if you own an automatic ... sell it!
You are totally missing out on the coolest part of driving"
-- Johnny O'Connell



----- Original Message ----
From: Walt Smith <waltechmail at yahoo.com>
To: "calug at unknownlamer.org" <calug at unknownlamer.org>
Sent: Mon, December 6, 2010 2:23:02 PM
Subject: Re: [CALUG] asus wifi and yahoo email


hi all, and thanks for info.
Here's where I'm at briefly:


Bernard,

Thanks for the step by step instructions.
I accomplished easily steps 1-9.  This simplifies the problem
approach.  However, what the settings should actually be is 
another matter.  Steps 10-12 center my POV.  Very good!!

In addition, I found software using google and on F12 have
the following:
iw        iwconfig  iwevent   iwgetid   iwlist    iwpriv    iwspy

This gives a basis to begin looking at the problems. 
I've spent a lot of time going thru menu's and trying things.
I hope I can better itemize so that individual settings can be
made to work. I don't yet know if these will be needed or if
some "Connection" over wifi becomes magic.

It would be good if I can have the option of a selection of
dialup over serial, * OR * wifi over ethernet.  Hopefully,
it's a matter of selecting a network config file.  For now,
I would settle for the ASUS appearing as simply a local 192.x.x.x
device.
-------------------------------------------


Specific info:

THe wifi wan insists on using 10.x.x.x addresses.
It won't accept 192 addresses which is what I tried on
The lan 192.x.x.x is fine.

The Lan is 192.168.1.1

NOTE: as I type this, I'm on dialup and no longer can 
get to the ASUS.  In the past, I've had many occasions
where I had systems over my lan with no problem.  I don't know
why I can't get a stable system connection here.

I think if I get help with NetworkManager, then I can better
explore the ASUS internal settings.    I suppose I'm  "starting over"
with some of the query to Bryan ..  


Thanks !!!


Walt........



      

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