[gentoo-user] bridge configuration problem

[gentoo-user] bridge configuration problem

[Shaochun Wang]

Hi All:

I configure my network bridge as following:

/etc/conf.d/net
	# Using Network Bridge
	bridge_br0="eth0"
	config_eth0=( "null" )

	# Finally give the bridge an address - dhcp or a static IP
	config_br0=( "192.168.8.20 netmask 255.255.255.0 brd 192.168.8.255" )
	routes_br0=( "default gw 192.168.8.1" )

I also have
	$ ls -l /etc/init.d/net.*
	lrwxrwxrwx 1 root root     6 Apr 24 13:22 /etc/init.d/net.br0 -> net.lo
	-rwxr-xr-x 1 root root 30696 Apr  3 18:27 /etc/init.d/net.lo

Normally, the bridge works well. But everytime I execute
"/etc/init.d/net.br0 restart", the following error occurs:
	 *     network interface br0 does not exist
	 *     Please verify hardware or kernel module (driver)                   [ !! ]
Then I execute such command one more time, it works well.

Does anyone know what's wrong with it?

THX

-- 
Shaochun Wang <scwang@ios.ac.cn>

Jabber:	fungusw@jabber.org

[gentoo-user] Re: bridge configuration problem

[Sven Köhler]

> Normally, the bridge works well. But everytime I execute
> "/etc/init.d/net.br0 restart", the following error occurs:
> 	 *     network interface br0 does not exist
> 	 *     Please verify hardware or kernel module (driver)                   [ !! ]
> Then I execute such command one more time, it works well.
> 
> Does anyone know what's wrong with it?

So you have bridge-utits installed and there's also kernel-support for 
bridging?

Can you create the bridge manually?


BTW: i would add a RC_NEED_xenbr0="net.eth0" to your /etc/conf.d/net


Regards,
   Sven

Re: [gentoo-user] Re: bridge configuration problem

[Shaochun Wang]

On Fri, Aug 08, 2008 at 04:30:31AM +0200, Sven K枚hler wrote:
> So you have bridge-utits installed and there's also kernel-support for 
> bridging?
Yes, yes.

>
> Can you create the bridge manually?
Yes, yes.

>
> BTW: i would add a RC_NEED_xenbr0="net.eth0" to your /etc/conf.d/net
I will try it. But I think maybe the kernel need some time to restart
a just recently stopped bridge!

-- 
Shaochun Wang <scwang@ios.ac.cn>

Jabber:	fungusw@jabber.org

Re: [gentoo-user] bridge configuration problem

[Stroller]

On 8 Aug 2008, at 03:17, Shaochun Wang wrote:
> ...
> I configure my network bridge as following:
> ...
> Does anyone know what's wrong with it?

It looks quite different to mine:

$ cat /etc/conf.d/net
dns_domain="redacted.example.net"

dns_servers="192.168.1.43 192.168.1.1 212.104.130.9 212.104.130.65"

bridge_br0="eth0 eth1"

config_eth0=( "null" )
config_eth1=( "null" )

config_br0=( "192.168.1.44 netmask 255.255.255.0 broadcast  
192.168.1.255" )
routes_br0=( "default via 192.168.1.1" )

preup() {
         if [[ ${IFACE} == "br0" ]] ;
           then sleep 30 ;
         fi
         return 0
}
$

Note that the preup is added in an attempt to overcome similar  
problems to those you describe - starting or restarting the bridge  
doesn't always work first time - but mine is still flakey.

Stroller.

Re: [gentoo-user] bridge configuration problem

[Shaochun Wang]

On Fri, Aug 08, 2008 at 12:47:35PM +0100, Stroller wrote:
>
> preup() {
>         if [[ ${IFACE} == "br0" ]] ;
>           then sleep 30 ;
>         fi
>         return 0
> }
> $
>
> Note that the preup is added in an attempt to overcome similar problems to 
> those you describe - starting or restarting the bridge doesn't always work 
> first time - but mine is still flakey.
>
> Stroller.
After adding the preup() function, it works now!

-- 
Shaochun Wang <scwang@ios.ac.cn>

Jabber:	fungusw@jabber.org

Re: [gentoo-user] bridge configuration problem

[Shaochun Wang]

On Mon, Aug 11, 2008 at 02:59:03PM +0800, Shaochun Wang wrote:
> After adding the preup() function, it works now!
> 
It seems that I celebrate too early. It still doesn't work. As a
matter of fact, it is so weird!

After executing the command "brctl addbr br0", the interface br0 is
available only for a few seconds. Then it vanished in the air!

-- 
Shaochun Wang <scwang@ios.ac.cn>

Jabber:	fungusw@jabber.org