Re: VLAN issues

["Sepherosa Ziehau" <sepherosa@xxxxxxxxx>]

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,
sephe

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