Re: Wired and Wireless with a notebook

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Author: Richard Wilson
Date:  
To: Main PLUG discussion list, nathan
Subject: Re: Wired and Wireless with a notebook
Just a note: I recently found out that mii-tool is deprecated in favor
of ethtool in the newer Linux versions. I don't know where the break is
-- Fedora Core 4 uses ethtool (I got the "mii-tool is deprecated" from
the man pages in FC4). Red Hat EL 2.1 still uses mii-tool; 3.0 has both
available iirc.

Richard Wilson
---------------------------
On Thu, 2006-04-20 at 01:30 -0700, Nathan England wrote:
> I have a script that runs mii-tool and greps for a 'Link OK' and if it doesn't
> find it, then it activates my wireless...
>
> Try something like that.
>
> On Thursday 20 April 2006 01:20, Dazed_75 wrote:
> > On 4/19/06, Jared Anderson <> wrote:
> > > On Tuesday 18 April 2006 5:12 pm, Dazed_75 wrote:
> > > > My laptop (Toshiba 5105-S701) has both wired ethernet and built-in
> > > > 802-11b. At home I normally plug in the wired ethernet. The Wireless
> > > > is used when I have the laptop away from the computer room (wheter
> > > > home or away). The issue seems to be that when I bring up the system
> > > > (Ubuntu 5.10) with the ether cable plugged in it finds both
> > > > interfaces, leaves both enabled and refuses to resolve URLs until I
> > > > use [menu] System/Administration/Networking to de-activate the
> > > > wireless.
> > > >
> > > > Note that both wireless and wired interfaces are being issued separate
> > > > IPs (e.g. 192.168.1.106 and 107) by the same Linksys router (which
> > > > also contains the AP) and should be issuing the same DNS IPs from my
> > > > ISP (/etc/resolv.conf only contains the usual pair). One would think
> > > > the system could use EITHER interface succussfully. Something is
> > > > getting in the way and I would love to learn how to avoid this issue.
> > > > BTW, this issue is not unique to me. I have talked to several people
> > > > with the same problem including at least one other PLUG member.
> > > >
> > > > Suggestions or references anyone?
> > >
> > > While at home, before disabling one of the interfaces, can you run of the
> > > following commands and then post the results?
> > >
> > > netstat -rn
> > > -or-
> > > route -vn
> > > -or-
> > > cat /proc/net/route
> > > ---------------------------------------------------
> > > PLUG-discuss mailing list -
> > > To subscribe, unsubscribe, or to change you mail settings:
> > > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
> >
> > Interestingly, my netstat (Ubuntu 5.10) does not seem to have a -m
> > option. Also, I realize you said "OR" but too much is better than not
> > enough and since they produced slightly different output, Here is all
> > of it:
> >
> > $ netstat -i
> > Kernel Interface table
> > Iface   MTU Met   RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR
> > Flg eth0   1500 0       113      0      0      0       78      0      0    
> >  0 BMRU eth1   1500 0        36      0      0      0        5      0      0
> >      0 BMRU lo    16436 0     15546      0      0      0    15546      0   
> >   0      0 LRU $ netstat -r
> > Kernel IP routing table
> > Destination     Gateway         Genmask         Flags   MSS Window  irtt
> > Iface 192.168.1.0     *               255.255.255.0   U         0 0        
> >  0 eth0 192.168.1.0     *               255.255.255.0   U         0 0      
> >    0 eth1 default         myrouter        0.0.0.0         UG        0 0    
> >      0 eth1 default         myrouter        0.0.0.0         UG        0 0  
> >        0 eth0 $ route -vn
> > Kernel IP routing table
> > Destination     Gateway         Genmask         Flags Metric Ref    Use
> > Iface 192.168.1.0     0.0.0.0         255.255.255.0   U     0      0       
> > 0 eth0 192.168.1.0     0.0.0.0         255.255.255.0   U     0      0      
> >  0 eth1 0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0     
> >   0 eth1 0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0    
> >    0 eth0 $ cat /proc/net/route
> > Iface    Destination    Gateway
> >     Flags    RefCnt    Use    Metric    Mask        MTU    Window    IRTT
> > eth0    0001A8C0    00000000    0001    0    0    0    00FFFFFF    0    0    0
> > eth1    0001A8C0    00000000    0001    0    0    0    00FFFFFF    0    0    0
> > eth1    00000000    0101A8C0    0003    0    0    0    00000000    0    0    0
> > eth0    00000000    0101A8C0    0003    0    0    0    00000000    0    0    0
> > $ cat /etc/resolv.conf
> > search ph.cox.net
> > nameserver 204.127.203.135
> > nameserver 216.148.225.135

> >
> > NOTE: the "search ph.cox.net" is from when I use the laptop at a
> > different location.
> >
> > Just to reconfirm, this is following a powerup with the ethernet cable
> > plugged an and the wireless turned on. At that point I was unable to
> > access the internet (ping yahoo.com even failed). Interestingly after
> > capturing this info, moving to this desktop to do the email, I went
> > back to the laptop to try pinging the DNS server by IP address and
> > found that worked and learned the traffic went over the wireless. I
> > then tried pinging Yahoo.com again and it worked (also via the
> > wireless). This is getting even wierder.
> >
> > --
> >
> > Nothing is really work unless you would rather be doing something else.
> > - James M. Barrie
> > ---------------------------------------------------
> > PLUG-discuss mailing list -
> > To subscribe, unsubscribe, or to change you mail settings:
> > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
>


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