IP Networking

hi folks,

i have a horstbox-router with the following configuration.

it has 4 ethernet ports from wich one (wan0) is configured as an external modem via dhcp. at this port/interface(wan0) it is connected with my home network (other switch).

this configuration results in the following routing table :

Code:

route 

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.2.0     *               255.255.255.0   U     0      0        0 br0
192.168.2.0     *               255.255.255.0   U     0      0        0 wan0
default         192.168.2.1     0.0.0.0         UG    0      0        0 wan0

so the router has internal acces to internet and can use voip from lan port 1 (wan0) which is the connected with a cable to my home network.

but on the other lan-ports i don't have internet acces or even acces to my home network. because it has no default gateway ?!

what command can i use to connect the interfaces br0 and wan0. or is it possible to route the traffic from br0 to wan0 ?

thanks in advance

"connect" how? What do you want sent from what to where? How will it manage to forward anything to anyone without a gateway?

this is the horstbox



there are 4 blue ethernet ports. i am sorry but i have no deep knowledge in ip.

the first lan port (wan0 interface) is connected to my home network like i noticed before. if i connect with putty to the router on a shell i can ping an internet address. so the traffic seems to go over the wan0 interface and the standard gateway 192.168.2.1. thats good and ok.

but if i connect another device on lan port 2 -4 (br0) it gets no ip address from dhcp. there is no connection to my home network.

i am not sure what is the solution to this problem because of my limited knowledge to ip.


but the solution to me should be that when i connect another device to lan port 2-4 (br0) it should get acces to my home network (dhcp, internet etc).

any ideas ?

But if no interfaces have a default gateway, how can any information get anywhere?

Code:

route 

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.2.0     *               255.255.255.0   U     0      0        0 br0
192.168.2.0     *               255.255.255.0   U     0      0        0 wan0
default         192.168.2.1     0.0.0.0         UG    0      0        0 wan0

as you can see the interface wan0 has a default gateway. 192.168.2.1 is my cable-network-router.

as far as i can see it is not possible to add a second default gateway (for the other lan-ports 2-4).

If you wanted your router to route, you would have its IP address be the gateway for the things behind it.

If you don't want it to do any routing at all and just join all the ports together in a big virtual switch, make them all part of br0. Note that firewall rules still apply to traffic forwarded over a bridge.

i have a few problems. my ip knowledge is limited. and i only have a busybox linux on the horstbox-router.

so is it possible to "bridge" the interfaces per command line ? does this make sense ?