[ipxe-devel] dhcp over vlan?

[Oliver Rath]

Hallo Anton,

On 27.07.2012 11:29, Anton D. Kachalov wrote:
> Hello Oliver,
>
> 27.07.2012, 12:59, "Oliver Rath" <rath at mglug.de>:
>> vcreate --tag 15 net0
>> dhcp net0-15
> Could you please provide an output from "ifstat" command after "vcreate".

ifstat after vcreate results:

  iPXE> ifstat
                             net0: 52:54:00:12:34:56 using undionly on 
UNDI-PCI00:03.0 (closed)
                               [Link:up, TX:4 TXE:0 RX:7 RXE:4]
                               [RXE: 4 x "Operation not supported 
(http://ipxe.org/3c086003)"]
                             net0-15: 52:54:00:12:34:56 using undionly 
on UNDI-PCI00:03.0 (closed)
                               [Link:up, TX:0 TXE:0 RX:0 RXE:0]

> Do you have switch between server and client? Have you tried to crossover them and setup network without VLAN?

The server runs with a real Machine (ubuntu linux 12.04), where the 
client is a kvm-vm, running via

kvm -m 1G -net nic,model=virtio -net 
tap,ifname=client3,script=/opt/dmi/kvm-up.bash

the bridge looks like:
# brctl show
bridge name    bridge id        STP enabled    interfaces
br0        8000.0022680a515d    no        client3
                             eth0
                             eth0.15

the forwarding is activated (masquerading and ip_forward).


> What is your network chip on the client? Do you use "undi" version or vendor specific iPXE NBP? Do you use the latest iPXE git version?

I use in kvm the virtio-chip, the undionly, which will be usccessfully 
loaded, is a "standard" undionly.kpxe with VLAN_CMD and PXE_CMD enabled. 
it was built with

make -j EMBED=dmi-short-menu.ipxe bin/undionly.kpxe DEBUG=script

>> But unfortunatly i get a timeout here.
>>
>> On server-side there exist a vlan:
>>
>> # ifconfig eth0.15
>> eth0.15   Link encap:Ethernet  Hardware Adresse 00:22:68:0a:51:5d
>>             inet Adresse:192.168.100.254  Bcast:192.168.100.255
>> Maske:255.255.255.0
>>             UP BROADCAST MULTICAST  MTU:1500  Metrik:1
>>             RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>>             TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>>             Kollisionen:0 Sendewarteschlangenlänge:0
>>             RX-Bytes:0 (0.0 B)  TX-Bytes:0 (0.0 B)
> You didn't receive anything on eth0.15.
>

I ran tcpdump with tcpdump -vv -i br0, but nothing to see. :-(

What can I do else for a better error-report?


Tfh!

Oliver