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
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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