Still missing something on vlan - F19

Wed Sep 10 04:40:47 UTC 2014

On 09/09/2014 06:57 PM, Rick Stevens wrote:
> On 09/09/2014 03:43 PM, Robert Moskowitz issued this missive:
>>
>> On 09/09/2014 05:37 PM, Rick Stevens wrote:
>>> On 09/09/2014 02:11 PM, Robert Moskowitz issued this missive:
>>>> I am working on a system that has a stable MACaddr (an issue with many
>>>> arm SOC), so I don't suspect that as an issue.
>>>>
>>>> cat /etc/udev/rules.d/70-persistent-net.rules
>>>>
>>>> # Added by 'write_udev' for detected device 'eth0'.
>>>> SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
>>>> ATTR{address}=="02:c4:03:82:c1:53", NAME="eth0"
>>>>
>>>> cat /etc/sysconfig/network
>>>>
>>>> NETWORKING=yes
>>>> HOSTNAME=test.htt-consult.com
>>>>
>>>> cat /etc/sysconfig/network-scripts/ifcfg-eth0
>>>>
>>>> DEVICE="eth0"
>>>> BOOTPROTO="none"
>>>> ONBOOT="yes"
>>>> TYPE="Ethernet"
>>>> NAME="System eth0"
>>>>
>>>> cat /etc/sysconfig/network-scripts/ifcfg-eth0.16
>>>>
>>>> DEVICE="eth0.16"
>>>> BOOTPROTO="dhcp"
>>>> vlan="yes"
>>>> ONBOOT="yes"
>>>> TYPE="Ethernet"
>>>> NAME="System eth0.16"
>>>> HOSTNAME="test.htt-consult.com"
>>>> IPV6INIT="yes"
>>>>
>>>> ip addr show
>>>>
>>>> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
>>>>      link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
>>>>      inet 127.0.0.1/8 scope host lo
>>>>      inet6 ::1/128 scope host
>>>>         valid_lft forever preferred_lft forever
>>>> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
>>>> state UNKNOWN qlen 1000
>>>>      link/ether 02:c4:03:82:c1:53 brd ff:ff:ff:ff:ff:ff
>>>>      inet6 fe80::c4:3ff:fe82:c153/64 scope link
>>>>         valid_lft forever preferred_lft forever
>>>>
>>>> Note I have set up the switch port so that ALL my vlans are accessable
>>>> from this port as 'tagged'.  There are no 'untagged'. VALN 16 is 
>>>> one of
>>>> the available labels.  I had earlier tried this with only VALN 16
>>>> available, and that did not work; I enabled all vlans then. None of 
>>>> the
>>>> vlans are untagged, so nothing is reachable the eth0.
>>>>
>>>> It bothers me that eth0.16 does not even show in the 'ip addr show'
>>>> command output.
>>>
>>> Have you verified that the driver for that NIC supports VLAN tagging?
>>> Some don't.
>>
>> Looks like I am going to have to ask on the Fedora-arm list:
>>
>> vconfig add eth0 16
>> WARNING:  Could not open /proc/net/vlan/config.  Maybe you need to load
>> the 8021q module, or maybe you are not using PROCFS??
>> Added VLAN with VID == 16 to IF -:eth0:-
>>
>> ip addr show
>> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
>>      link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
>>      inet 127.0.0.1/8 scope host lo
>>      inet6 ::1/128 scope host
>>         valid_lft forever preferred_lft forever
>> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
>> state UNKNOWN qlen 1000
>>      link/ether 02:c4:03:82:c1:53 brd ff:ff:ff:ff:ff:ff
>>      inet6 fe80::c4:3ff:fe82:c153/64 scope link
>>         valid_lft forever preferred_lft forever
>> 4: eth0.16 at eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
>> noqueue state UP
>>      link/ether 02:c4:03:82:c1:53 brd ff:ff:ff:ff:ff:ff
>>      inet6 fe80::c4:3ff:fe82:c153/64 scope link
>>         valid_lft forever preferred_lft forever
>>
>> ifup eth0.16
>> Error: Timeout 90 sec expired.
>>
>> So the vconfig command did something, but not enought.
>
> You may need to load that 8021q module. Check with "lsmod". If it's
> not there, try "modprobe 8021q".

Progress.  lsmod did not list it.  After the modprobe it shows up. So I 
tried vconfig again:

vconfig add eth0 16
Added VLAN with VID == 16 to IF -:eth0:-

ifup eth0.16
Error: Timeout 90 sec expired.

ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
         inet6 fe80::c4:3ff:fe82:c153  prefixlen 64  scopeid 0x20<link>
         ether 02:c4:03:82:c1:53  txqueuelen 1000  (Ethernet)
         RX packets 8530  bytes 1425669 (1.3 MiB)
         RX errors 0  dropped 100  overruns 0  frame 0
         TX packets 484  bytes 99312 (96.9 KiB)
         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
         device interrupt 87  base 0x6000

eth0.16: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
         inet6 fe80::c4:3ff:fe82:c153  prefixlen 64  scopeid 0x20<link>
         ether 02:c4:03:82:c1:53  txqueuelen 0  (Ethernet)
         RX packets 57  bytes 4872 (4.7 KiB)
         RX errors 0  dropped 0  overruns 0  frame 0
         TX packets 3  bytes 258 (258.0 B)
         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 16436
         inet 127.0.0.1  netmask 255.0.0.0
         inet6 ::1  prefixlen 128  scopeid 0x10<host>
         loop  txqueuelen 0  (Local Loopback)
         RX packets 1024  bytes 91136 (89.0 KiB)
         RX errors 0  dropped 0  overruns 0  frame 0
         TX packets 1024  bytes 91136 (89.0 KiB)
         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

So I now have the vlan interface, but it is not getting the dhcpv4 and 
ipv6 RA info for setting up addresses.

What do I do to get 8021q loaded at boot?   And any idea why addressing 
is still not working?

>
>>> Have you tried a manual config, e.g. "vconfig add eth0 16"? If that
>>> works, could you add
>>>
>>>     KERNEL="eth*"
>>>
>>> to the line in your /etc/udev/rules.d/70-persistent-net.rules file and
>>> see if that helps? It may be that the kernel isn't recognizing the
>>> device's name.
>>
>> More work to do...