Network config for a bridged connection

English Network/Internet
#1

Hi All ,

I am using 2 routers . The Primary router is TPLINK WR740N on which I have DD-WRT flashed. The second router is also the same one but running the stock firmware. I have WAN plugged on to the primary router and have set up a client-bridge connection whereby the second one connects wirelessly to the dd-wrt router. I am using a LAN cable from Second router to my desktop.

Almost all OSes (WIN/ UBUNTU / MANJARO etc) seem to recognize this connection as LAN and I am able to connect to Internet straightaway.

I want to install OpenSUSE 13.2 from a live USB. When I run the OS from the live mode (GNOME) , I notice a small icon with 3 dots in the sys tray and when I click that it is always showing the status “connecting” but not establishing connection.

On tinkering with Network management , I see 2 modes - Network Manager and Wicked . The interface detected is not eth0 but eth0sn2 (more than 3 characters) or something. Wicked mode also does not seem to work. How do I make the system detect my network?. Also I get the message that nm-applet to be downloaded for internet to work. How do I do that without first connecting thru SUSE?

My network adapter is Realtek if that could be of any help.

Regds,
VR

#2

Your description is confusing. Pls verify the followng is what I believe you have setup

Internet <> DD-WRT <> WR740N <> LAN

The link between the DD-WRT and WR740N above is wireless, all other connections are wired.
Your ethosn2 interface is correct and where many if not most Linux distros will be naming interfaces, it’s supposed to avoid confusing interface names when multiple identical NICs are installed.

So, your network troubleshooting should be very normal. If you WR740N is blocking/filtering LAN hosts, then as long as your openSUSE is configured with a valid IP address and default gateway(depending on your 2 wireless routers setup, either might be the default gateway address), you should have network connectivity (ie ping IP addresses). If that works, then your next step is to verify name resolution is working.

If you have other LAN hosts working, then you can compare their network configurations (ip addr, ifconfig, route) with your openSUSE. Typically they should all be the same except for their host addresses.

TSU