I think the problem may be at the router - can you show the ifconfig
(if?) when you are connected via wifi - I would look at the network
segment, is it the same as the wired connection? my guess is not.
192.168 networks are not routed and I think you have two - wired and
wifi. While a bridge on the AP would be quick & easy (and a bad idea)
- a VPN would be more secure and more useful overall. you could even
use it when on the road to access your wired network.
I'm not a Debian user so ymmv - There are many on the list so getting
cli from them would be better - Ed
On Thu, Jun 19, 2014 at 11:46 AM, Mark Phillips
<
mark@phillipsmarketing.biz> wrote:
> I am running Debian testing. When I reboot and plug in my network cable, I
> am able to ping external servers and machines on my LAN. Basically, it all
> just works with the network cable plugged in.
>
> When I reboot and turn on the wifi (ie there is a switch on my laptop to
> turn on/of wifi) and have the network cable disconnected, I can ping
> external sites but not internal machines. I get the message Destination Host
> Unreachable. If I then plug in the network cable (and turn off wfi) I am
> able to ping both internal and external servers. If I now disconnect the
> cable and turn on wifi again, I can ping both external and internal servers.
>
> /etc/network/interfaces
> auto eth0
> iface eth0 inet static
> address 192.168.25.150
> netmask 255.255.255.0
> gateway 192.168.25.1
> dns-search ph.cox.net
> dns-nameservers 68.105.28.12 68.105.29.12 68.105.28.11
> gateway 192.168.25.1
>
> allow-hotplug wlan0
> iface wlan0 inet dhcp
>
> I looked at resolv.conf and route for the two scenarios -
>
> 1. Reboot into cable connected network -
> root@orca:/home/mark# route
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric Ref Use
> Iface
> default gateway 0.0.0.0 UG 0 0 0 eth0
> link-local * 255.255.0.0 U 1000 0 0 eth0
> 192.168.25.0 * 255.255.255.0 U 0 0 0 eth0
>
> root@orca:/home/mark# cat /etc/resolv.conf
> # Generated by NetworkManager
> search ph.cox.net
> nameserver 68.105.28.12
> nameserver 68.105.29.12
> nameserver 68.105.28.11
>
> 2. Reboot into wifi
> root@orca:/home/mark# route
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric Ref Use
> Iface
> default gateway 0.0.0.0 UG 0 0 0
> wlan0
> link-local * 255.255.0.0 U 1000 0 0
> wlan0
> 192.168.25.0 * 255.255.255.0 U 0 0 0 eth0
> 192.168.25.0 * 255.255.255.0 U 0 0 0
> wlan0
>
> root@orca:/home/mark# cat /etc/resolv.conf
> nameserver 192.168.25.1
>
> I could change interfaces to have a static IP for wifi, and it would work
> when I reboot. However, for that occasional visit to Starbucks my wifi would
> not work.
>
> What do I need to do to make my wifi work both at home and on the road?
>
> Thanks,
>
> Mark
>
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