DragonFly users List (threaded) for 2007-03
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DragonFly users List (threaded) for 2007-03
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Re: VLAN issues

From: "Sepherosa Ziehau" <sepherosa@xxxxxxxxx>
Date: Mon, 26 Mar 2007 14:24:29 +0800

On 3/26/07, Gergo Szakal <bastyaelvtars@gmail.com> wrote:
I am so sorry to be a pain in the ass....

On Sun, 25 Mar 2007 20:52:20 +0800
"Sepherosa Ziehau" <sepherosa@gmail.com> wrote:

> > 1) I have to 'addm' the VLAN interfaces to the bridge manually
> > (they get added correctly then, this did not work at all before).
> Does the addm work now?

Only manually.

> > 2) When I try to tcpdump bridge0, I get 'network is down'. I also
> > have to 'up' bridge0 manually.
> Do you mean bridge0 is not up if it is configured in rc.conf?

Yes. In rc.conf I have:
ifconfig_bridge0="addm vlan0 addm vlan2 up"
When I do from commandline:

# ifconfig bridge0 addm vlan0 addm vlan2 up

it works. Strange.

I think it is caused by that vlan ifaces are brought up after bridge ifaces. If you have time you can dig the rc scripts.

> > 3) There are still no packets going through. :-( > > Things are a little bit complicated here, so I will need to talk to > other developers when I have a clear solution, but I have a temporary > workaround: > ifconfig xl0 promisc > ifconfig xl1 promisc >

Does not help. Let me show you the structure:

HP 2524 #1 --- xl0 (vlan0 ID:11) -- bridge0 -- xl1 (vlan2 ID:11) -- HP2524 #2

The switches can not 'talk' to each other via the bridge.

Can box on HP#1 ping another box on HP#2?

OTOH: From the vlan(4) manpage I get this:

Nah, things should work at least for small data generated by ping.

Best Regards,

Live Free or Die

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