What would be the easiest way to create a network bridge?

I have two interfaces (eth0 & eth1).

My internet connection is coming in on eth0 and I have a switch connected to eth1 that has multiple computers connected to it.

you'd normally make a bridge using the inspiringly named bridge module

there are plenty of config guides if you google for "bridge howto" on google.

That's what I've been using and it works fine....kind of.

This is what my problem is:

eth0 - ip address 10.2.162.2 -- Incoming Internet
eth1 - ip address 10.2.162.3 -- Switch with multiple computers
br0 - ip address 10.2.162.5 -- You know...it's the bridge


The odd thing is sometimes I can ping google.com fine...other times I can't. It's not an ISP issue though.

The server is connected to a Cisco VPN router. When I try to ping, lets say 10.2.162.2 from another location (10.2.175.1) it works sometimes. When it stops responding I can usually ping 10.2.162.5.

Sometimes 10.2.162.5 stops responding and then I can ping 10.2.162.2 again.


I'm not sure what's going on here.

These are the commands I've been using to create my bridge:

i'll come clean and say i've not actually configured a bridge under linux, btu surely you wouldn't have ip addresses on each ethX in the bridge? you'd just have the single ip on br0. here http://linux-net.osdl.org/index.php/Bridge they've set eth0 and eth1 to both be 0.0.0.0 presumably to just hold in interface up.

my personal route it always to stick wireshark and tcpdump on and see what's going where. you can dump on both ethX's simultaneously and see where the icmp traffic is going during failures.

Let me give that a shot and see what happens.

Doh!

That worked perfectly.


Thanks

What did you end up doing exactly Mithrilhall ?

How exactly ??