Re: PPPoE connection uses wrong NIC

[Dan Williams <dcbw redhat com>]

On Tue, 2009-12-29 at 13:22 +0200, Quintin Beukes wrote:
> Hey,
> 
> I am trying to connect to a wireless-broadband provider using an
> iBurst modem. The driver creates a network device, which reports
> itself as a wireless device (so iwconfig lists the signal strength).
> It's not a GPRS/3G, so I can't take the wireless-broadband steps in
> the connection editor. The DSL steps should work perfectly, except the
> nic passed to pppd is my ethernet device instead of the one created by
> the driver. PPPoE must happen via this device, where the driver will
> pass it onto the modem via USB and the rest happens as usual.

Does the ib0 device show up immediately when the iBurst modem is plugged
in?  Is eth0 a normal ethernet NIC on your machine?  And next, does the
iBurst modem basically act like a USB ethernet device?

Dan

> Either way, when NetworkManager invokes pppd, it does it as follows:
> Dec 29 12:31:47 quintin-VIAO NetworkManager: <debug>
> [1262082707.053800] nm_ppp_manager_start(): Command line:
> /usr/sbin/pppd nodetach lock nodefaultroute user <my-user> plugin
> rp-pppoe.so nic-eth0 noauth nodeflate usepeerdns mru 1492 mtu 1492
> lcp-echo-failure 3 lcp-echo-interval 20 ipparam
> /org/freedesktop/NetworkManager/PPP/8 plugin
> /usr/lib/pppd/2.4.4/nm-pppd-plugin.so
> 
> As you can see, rp-pppoe.so is passed the parameter nic-eth0. This
> should instead be ib0. If I copy this line and remove the
> nm-pppd-plugin and change the nic-eth0 to ib0 I can connect (in fact,
> that's how I sent this e-mail).
> 
> How can I configure network manager to use the correct nic?
> 
> My current configuration file:
> [connection]
> id=iBurst
> uuid=60d71ae5-7c0e-4bf9-a338-939fe95585b2
> type=pppoe
> autoconnect=false
> timestamp=0
> 
> [ppp]
> noauth=true
> refuse-eap=false
> refuse-pap=false
> refuse-chap=false
> refuse-mschap=false
> refuse-mschapv2=false
> nobsdcomp=false
> nodeflate=false
> no-vj-comp=false
> require-mppe=false
> require-mppe-128=false
> mppe-stateful=false
> crtscts=false
> baud=0
> mru=1492
> mtu=1492
> lcp-echo-failure=0
> lcp-echo-interval=0
> 
> [ipv4]
> method=auto
> ignore-auto-routes=false
> ignore-auto-dns=false
> dhcp-send-hostname=false
> never-default=false
> 
> [pppoe]
> username=Anita_Geber iburst co za
> password=080889SH
> 
> [802-3-ethernet]
> speed=0
> duplex=full
> auto-negotiate=true
> mtu=1492
> 
> I tried adding a mac-address line to the ethernet section, but this
> results in the connection being marked as invalid, and not being
> available.
> 
> Quintin Beukes
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