Need help configuring my network
Mark Phillips
mark at phillipsmarketing.biz
Wed May 3 08:58:13 MST 2006
Jared,
Here is a transcript of what I did. I booted the machine (it had been off all
night). What is really strange, is that it looked as if the wireless card was
configured properly when I booted up (note it actually got the right mac
address for the ap) but I still could not ping a machine on my network.
My comments are preceded by a '>':
stingray:/home/mark# ifconfig
ath0 Link encap:Ethernet HWaddr 00:13:46:E3:68:2B
inet6 addr: fe80::213:46ff:fee3:682b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:13 errors:1 dropped:0 overruns:0 frame:1
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:200
RX bytes:780 (780.0 b) TX bytes:0 (0.0 b)
Interrupt:169 Memory:e08b1000-e08c1000
eth0 Link encap:Ethernet HWaddr 00:08:74:CC:3C:17
inet addr:192.168.25.125 Bcast:192.168.25.255 Mask:255.255.255.0
inet6 addr: fe80::208:74ff:fecc:3c17/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:82 errors:0 dropped:0 overruns:0 frame:0
TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:5248 (5.1 KiB) TX bytes:398 (398.0 b)
Base address:0xdcc0 Memory:ff6c0000-ff6e0000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:164 errors:0 dropped:0 overruns:0 frame:0
TX packets:164 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:11326 (11.0 KiB) TX bytes:11326 (11.0 KiB)
> eth0 is configured because I forgot that the cable was plugged in,
> so I took it down
stingray:/home/mark# ifdown eth0
stingray:/home/mark# ifconfig
ath0 Link encap:Ethernet HWaddr 00:13:46:E3:68:2B
inet addr:192.168.25.125 Bcast:192.168.25.255 Mask:255.255.255.0
inet6 addr: fe80::213:46ff:fee3:682b/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:13 errors:1 dropped:0 overruns:0 frame:1
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:200
RX bytes:780 (780.0 b) TX bytes:0 (0.0 b)
Interrupt:169 Memory:e08b1000-e08c1000
eth0 Link encap:Ethernet HWaddr 00:08:74:CC:3C:17
inet6 addr: fe80::208:74ff:fecc:3c17/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:82 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:5248 (5.1 KiB) TX bytes:648 (648.0 b)
Base address:0xdcc0 Memory:ff6c0000-ff6e0000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:164 errors:0 dropped:0 overruns:0 frame:0
TX packets:164 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:11326 (11.0 KiB) TX bytes:11326 (11.0 KiB)
> it looks as if ifplugd then brought ath0 up - cool
stingray:/home/mark# iwconfig
lo no wireless extensions.
ath0 IEEE 802.11g ESSID:"PMI"
Mode:Managed Frequency:2.437 GHz Access Point: 00:12:17:0A:57:85
Bit Rate:36 Mb/s Tx-Power:18 dBm Sensitivity=0/3
Retry:off RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=27/94 Signal level=-68 dBm Noise level=-95 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
eth0 no wireless extensions.
sit0 no wireless extensions.
> ath0 is connected to the ap, or this is what I interpret from the output. I
still have not run your suggested command... There is actually a link quality
of 27/94 - is this too low?
stingray:/home/mark# ifup ath0
ifup: interface ath0 already configured
stingray:/home/mark# iwconfig
lo no wireless extensions.
ath0 IEEE 802.11g ESSID:"PMI"
Mode:Managed Frequency:2.437 GHz Access Point: 00:12:17:0A:57:85
Bit Rate:36 Mb/s Tx-Power:18 dBm Sensitivity=0/3
Retry:off RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=29/94 Signal level=-66 dBm Noise level=-95 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
eth0 no wireless extensions.
sit0 no wireless extensions.
> still looking good - I haven't broken anything yet
stingray:/home/mark# ping gandalf
PING gandalf (192.168.25.114) 56(84) bytes of data.
ping: sendmsg: Network is unreachable
ping: sendmsg: Network is unreachable
ping: sendmsg: Network is unreachable
--- gandalf ping statistics ---
5 packets transmitted, 0 received, 100% packet loss, time 3998ms
> I am seeing a lot of these messages when I run dmesg:
> ath0: no IPv6 routers present
stingray:/home/mark# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.25.0 0.0.0.0 255.255.255.0 U 0 0 0 ath0
0.0.0.0 192.168.25.1 0.0.0.0 UG 0 0 0 ath0
> Looks good as well....so let's try your suggestion:
stingray:/home/mark# iwconfig ath0 essid PMI nick stingray channel 6 mode
master rate auto
stingray:/home/mark# iwconfig
lo no wireless extensions.
ath0 IEEE 802.11 ESSID:"" Nickname:"stingray"
Mode:Managed Frequency:2.417 GHz Access Point: 00:00:00:00:00:00
Bit Rate:1 Mb/s Tx-Power:18 dBm Sensitivity=0/3
Retry:off RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/94 Signal level=-95 dBm Noise level=-95 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
eth0 no wireless extensions.
sit0 no wireless extensions.
> oops - the configuration is now broken; maybe quotes around PMI?
stingray:/home/mark# iwconfig ath0 essid "PMI" nick stingray channel 6 mode
master rate auto
stingray:/home/mark# iwconfig
lo no wireless extensions.
ath0 IEEE 802.11b ESSID:"" Nickname:"stingray"
Mode:Master Frequency:2.437 GHz Access Point: 00:00:00:00:00:00
Bit Rate:0 kb/s Tx-Power:18 dBm Sensitivity=0/3
Retry:off RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/94 Signal level=-95 dBm Noise level=-95 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
eth0 no wireless extensions.
sit0 no wireless extensions.
stingray:/home/mark# iwconfig ath0 essid PMI nick stingray channel 6 mode
master rate auto
stingray:/home/mark# iwconfig
lo no wireless extensions.
ath0 IEEE 802.11 ESSID:"" Nickname:"stingray"
Mode:Managed Frequency:2.442 GHz Access Point: 00:00:00:00:00:00
Bit Rate:1 Mb/s Tx-Power:18 dBm Sensitivity=0/3
Retry:off RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/94 Signal level=-95 dBm Noise level=-95 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
eth0 no wireless extensions.
sit0 no wireless extensions.
stingray:/home/mark#
> Well, that didn't work as expected. What does the message
> ath0: no IPv6 routers present
> mean?
Thanks!
Mark
On Tuesday 02 May 2006 05:59 pm, Jared Anderson wrote:
> On Tuesday 02 May 2006 17:08, Mark Phillips wrote:
> > On Tuesday 02 May 2006 05:01 pm, Jared Anderson wrote:
> > > Link Quality=0/94
> > >
> > > Generally, not good enough. :)
> > >
> > > What is the output of the following command?
> > >
> > > iwlist ath0 scan
> >
> > stingray:/home/mark# iwlist ath0 scan
> > ath0 Scan completed :
> > Cell 01 - Address: 00:12:17:0A:57:85
> > ESSID:"PMI"
> > Mode:Master
> > Frequency:2.437 GHz (Channel 6)
> > Quality=24/94 Signal level=-71 dBm Noise level=-95
> > dBm Encryption key:off
> > Bit Rate:1 Mb/s
> > Bit Rate:2 Mb/s
> > Bit Rate:5 Mb/s
> > Bit Rate:6 Mb/s
> > Bit Rate:9 Mb/s
> > Bit Rate:11 Mb/s
> > Bit Rate:12 Mb/s
> > Bit Rate:18 Mb/s
> > Bit Rate:24 Mb/s
> > Bit Rate:36 Mb/s
> > Bit Rate:48 Mb/s
> > Bit Rate:54 Mb/s
> > Extra:bcn_int=100
> >
>
> try:
>
> iwconfig ath0 essid PMI nick stingray channel 6 mode master rate auto
>
> and then post results of iwconfig.
>
> Regards,
> Jared
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--
Mark Phillips
Phillips Marketing, Inc
mark at phillipsmarketing.biz
602 524-0376
480 945-9197 fax
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