I tried pppoe over wlan0 and now wireless is not functional

Hiato · 2014-12-04 16:20:27

That pretty much sums it up. I tried to initiate a pppoe connection over /dev/wlan0 connected to a modem, and it failed. Subsequent to that, my wireless (in Arch alone, so not hardware, just some configuration issue) does not seem to be working. In particular, wpa_supplicant associates correctly, dhcpcd is able to acquire a lease and correctly set /etc/resolv.conf. However, I am unable to ping the router (host unreachable), or do any dns resolution (dig, tracepath) or some such.

I looked through the pppoe-{setup,start,connect,...} scripts and couldn't find anything referencing files beyond /etc/ppp/. I strongly suspect that there is a file sitting about somewhere in /etc that is trying to redirect traffic through wlan0 over pp0 or something to that effect, but I am unable to find any information about what this might be.

Some details, should they be useful:

uname -a

3.17.4-1-ARCH #1 SMP PREEMPT Fri Nov 21 21:14:42 CET 2014 x86_64 GNU/Linux

lspci

Network controller: Realtek Semiconductor Co., Ltd. RTL8192SE Wireless LAN Controller (rev 10)

route -n

Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         10.0.0.2        0.0.0.0         UG    303    0        0 wlan0
10.0.0.0        0.0.0.0         255.255.255.0   U     303    0        0 wlan0

resolv.conf

nameserver 127.0.0.1
nameserver 10.0.0.2

(the localhost entry is for dnsmasq, it's not interfering in any way, tested)

This is at the limit of my networking knowledge, so any help would be appreciated.

ewaller · 2014-12-04 16:29:53

What is your IP address? Is it a 10.0.0.0/8 number, or is it 192.0.0.0/24 number ?

Hiato · 2014-12-04 16:56:09

It's on 10.0.0.0/8, so I think the above is correct? Edit: confirmed, routing information is the same for the wired connection to the same router.

Last edited by Hiato (2014-12-04 16:56:56)

ewaller · 2014-12-04 18:51:04

Can you ping 66.211.214.131 ? (It is an Arch Linux server)

Hiato · 2014-12-04 18:59:13

Unfortunately not,

PING 66.211.214.131 (66.211.214.131) 56(84) bytes of data.

--- 66.211.214.131 ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 3007ms

I can't even ping the router though, so perhaps this is not too surprising.

ewaller · 2014-12-04 19:25:15

How about a quick sanity check. What does iw dev wlan0 link report?

ewaller@odin ~ 1060 %iw dev wlan0 link
Connected to c4:3d:c7:5d:eb:8f (on wlan0)
        SSID: Woodlyn
        freq: 2412
        RX: 550035547 bytes (1415881 packets)
        TX: 34561827 bytes (260277 packets)
        signal: -43 dBm
        tx bitrate: 54.0 MBit/s

        bss flags:      short-preamble short-slot-time
        dtim period:    1
        beacon int:     100
ewaller@odin ~ 1061 %

Hiato · 2014-12-04 19:28:04

My you have a speedy connection, here's mine

Connected to 00:26:75:51:1f:e1 (on wlan0)
        SSID: steve
        freq: 2462
        RX: 34078 bytes (478 packets)
        TX: 1759 bytes (12 packets)
        signal: -46 dBm
        tx bitrate: 1.0 MBit/s

        bss flags:      short-slot-time
        dtim period:    3
        beacon int:     100

ewaller · 2014-12-04 19:44:05

Damn.

Arch Linux

#1 2014-12-04 16:20:27

I tried pppoe over wlan0 and now wireless is not functional

#2 2014-12-04 16:29:53

Re: I tried pppoe over wlan0 and now wireless is not functional

#3 2014-12-04 16:56:09

Re: I tried pppoe over wlan0 and now wireless is not functional

#4 2014-12-04 18:51:04

Re: I tried pppoe over wlan0 and now wireless is not functional

#5 2014-12-04 18:59:13

Re: I tried pppoe over wlan0 and now wireless is not functional

#6 2014-12-04 19:25:15

Re: I tried pppoe over wlan0 and now wireless is not functional

#7 2014-12-04 19:28:04

Re: I tried pppoe over wlan0 and now wireless is not functional

#8 2014-12-04 19:44:05

Re: I tried pppoe over wlan0 and now wireless is not functional

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