Re: [gentoo-user] re: alternating between wired and wireless interfaces

[Torben Hensgens Mailer <thens.mail@googlemail.com>]

Am 21.09.2013 12:47, schrieb Alexander Kapshuk:
> I have both wired and wireless network interfaces configured:
> box0 log # rc-update show|egrep 'enp3s0|wlp2s0'
>             net.enp3s0 |      default
>             net.wlp2s0 |      default
>
> (1). Is there a way to instruct the system as to which network interface
> to use, so it doesn't try to bring up the one not intended to be used at
> boot time:
> box0 log # egrep 'enp3s0|wlp2s0' messages
> -------------------------------------------
> Sep 21 12:30:18 localhost kernel: [   12.268209] r8169 0000:03:00.0
> enp3s0: link down
> Sep 21 12:30:18 localhost kernel: [   12.268236] IPv6:
> ADDRCONF(NETDEV_UP): enp3s0: link is not ready
> Sep 21 12:30:18 localhost /etc/init.d/net.enp3s0[1888]: No configuration
> specified; defaulting to DHCP
> Sep 21 12:30:18 localhost dhcpcd[1896]: enp3s0: waiting for carrier
> Sep 21 12:30:56 localhost /etc/init.d/net.enp3s0[1801]: ERROR:
> net.enp3s0 failed to start
> Sep 21 12:30:56 localhost kernel: [   50.595278] IPv6:
> ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
> Sep 21 12:30:56 localhost /etc/init.d/net.wlp2s0[1917]: WARNING:
> net.wlp2s0 has started, but is inactive
> Sep 21 12:30:56 localhost /etc/init.d/netmount[2007]: ERROR: cannot
> start netmount as net.enp3s0 would not start
> Sep 21 12:30:56 localhost /etc/init.d/sshd[2008]: ERROR: cannot start
> sshd as net.enp3s0 would not start
> Sep 21 12:30:57 localhost kernel: [   51.817387] wlp2s0: authenticate
> with f4:ec:38:b9:59:a7
> Sep 21 12:30:57 localhost kernel: [   51.825344] wlp2s0: send auth to
> f4:ec:38:b9:59:a7 (try 1/3)
> Sep 21 12:30:57 localhost kernel: [   51.826811] wlp2s0: authenticated
> Sep 21 12:30:57 localhost kernel: [   51.827059] wlp2s0: associate with
> f4:ec:38:b9:59:a7 (try 1/3)
> Sep 21 12:30:57 localhost kernel: [   51.829316] wlp2s0: RX AssocResp
> from f4:ec:38:b9:59:a7 (capab=0x411 status=0 aid=2)
> Sep 21 12:30:57 localhost kernel: [   51.829586] wlp2s0: associated
> Sep 21 12:30:57 localhost kernel: [   51.829598] IPv6:
> ADDRCONF(NETDEV_CHANGE): wlp2s0: link becomes ready
> Sep 21 12:30:59 localhost wpa_cli: interface wlp2s0 CONNECTED
> Sep 21 12:30:59 localhost /etc/init.d/net.wlp2s0[2130]: No configuration
> specified; defaulting to DHCP
> Sep 21 12:30:59 localhost dhcpcd[2138]: wlp2s0: sending IPv6 Router
> Solicitation
> Sep 21 12:30:59 localhost dhcpcd[2138]: wlp2s0: sendmsg: Cannot assign
> requested address
> Sep 21 12:30:59 localhost dhcpcd[2138]: wlp2s0: rebinding lease of
> 192.168.1.5
> Sep 21 12:30:59 localhost dhcpcd[2138]: wlp2s0: acknowledged 192.168.1.5
> from 192.168.1.1 `TP-LINK'
> Sep 21 12:30:59 localhost dhcpcd[2138]: wlp2s0: checking for 192.168.1.5
> Sep 21 12:31:03 localhost dhcpcd[2138]: wlp2s0: sending IPv6 Router
> Solicitation
> Sep 21 12:31:03 localhost dhcpcd[2138]: wlp2s0: leased 192.168.1.5 for
> 259200 seconds
> Sep 21 12:31:07 localhost dhcpcd[2167]: wlp2s0: sending IPv6 Router
> Solicitation
> Sep 21 12:31:11 localhost dhcpcd[2167]: wlp2s0: sending IPv6 Router
> Solicitation
> Sep 21 12:31:11 localhost dhcpcd[2167]: wlp2s0: no IPv6 Routers available
> -------------------------------------------
> (2). sshd seems to start only if the wired interface is up. How do I
> tell it start when the wireless interface is running?
> box0 log # rc-status|egrep 'enp3s0|wlp2s0|sshd'
>   net.enp3s0                                                        [
> stopped  ]
>   net.wlp2s0                                                        [
> started  ]
>   sshd                                                              [
> stopped  ]
>
>
> Thanks.
>
>

Yeh, same advice here, try wicd first. If you don't want a GUI (or you 
don't have corresponding UI toolkits installed), there's also the option 
to configure and use wicd via the ncurses interface.