Am 20. Apr, 2006 schwätzte Dazed_75 so:
> On 4/19/06, Jared Anderson <pluggedIn@thegoldenedge.com> 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
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> Interestingly, my netstat (Ubuntu 5.10) does not seem to have a -m
He suggested -rn, like "registered nurse" :).
The problem is that both interfaces are coming up. The output from the
commands he suggested just prove that.
I have a laptop running Ubuntu with wired and wireless setup as well.
Wired works if I have a wired connection. If not, wireless gives it a try.
Hmm, I notice now that my wired interface isn't in
/etc/network/interfaces. That's where debian usually does network
interface configuration.
Would you read that file into an email and post it to the list? It should
hold any state secrets.
Hmm, I see /usr/sbin/NetworkManager and /usr/sbin/NetworkManagerDispatcher
running.
I don't see config info for it as the config dirs in /etc are empty.
dhclient for my wired device was called from dhcdbd.
dhcdbd provides a dbus interface to dhclient, so applications such as
NetworkManager can query and control dhclient. This allows an application
neutral interface for such operations
I would guess, then, that NetworkManager is performing some sort of magic
for me. I'll look into that another time.
ciao,
der.hans
> 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
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