[arch-general] Bridge interface with netctl

[arnaud gaboury]

On Wed, Feb 26, 2014 at 2:09 PM, arnaud gaboury
<arnaud.gaboury at gmail.com> wrote:
> On Wed, Feb 26, 2014 at 1:37 PM, arnaud gaboury
> <arnaud.gaboury at gmail.com> wrote:
>> --
>>>
>>> Now:
>>> * Populate the iptables FORWARD chain to route traffic from your physical
>>> interface to the bridge and back.
>>
>>  I missed totally this part of the setup. I must admit this topic is a
>> little bit new to me.
>> Will try to go this way.

After more test, I do think I start to understand where do my issues come from.
First of all, my kernel is a custom (need user space set) 3.13.5-1. I
realized that no iptable modules were loaded.
Then, starting with a first basic dhcp netctl profile
(systemd-networkd disabled, dhcpcd.service disabled), my network is
working.
**************
gabx at hortensia ➤➤ ~ % ip addr
2: enp7s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
state UP group default qlen 1000
    link/ether 14:da:e9:b5:7a:88 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.87/24 brd 192.168.1.255 scope global enp7s0
       valid_lft forever preferred_lft forever
****************
gabx at hortensia ➤➤ ~ % route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         dsldevice.lan   0.0.0.0         UG    202    0        0 enp7s0
192.168.1.0     *               255.255.255.0   U     202    0        0 enp7s0
hortensia.lan   localhost.local 255.255.255.255 UGH   202    0        0 lo
**************

Then, when starting a seond netctl profile, a bridge br0 with static
IP, my network is down.

gabx at hortensia ➤➤ ~ % ip addr
2: enp7s0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc
pfifo_fast master br0 state UP group default qlen 1000
    link/ether 14:da:e9:b5:7a:88 brd ff:ff:ff:ff:ff:ff
8: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state
UP group default
    link/ether 14:da:e9:b5:7a:88 brd ff:ff:ff:ff:ff:ff
***************
gabx at hortensia ➤➤ ~ % route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
****************************

So  now let's read about iptable or even nftables. IF I understand : <
* Populate the iptables FORWARD chain to route traffic from your
physical
 interface to the bridge and back.> , I am far from being comfortable
doing this.