[VLAN] vlan on Linux linux_PC18 2.4.21-0.13mdk#1 Fri Mar 14 15:08:06 EST 2003 i686 unknown unknown GNU/Linux

[ajz at cambridgebroadband.com (Alex Zeffertt)]

On Mon, 11 Jul 2005 17:11:27 +0300
Mehmet.Ekici@xxxxxxxxxxxxxx wrote:

> Hi all,
> I have installed  "vconfig-1.6-4.i386.rpm" 
> 
> 
> eth1      Link encap:Ethernet  HWaddr 00:04:23:B5:C8:88 
>           UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
>           RX packets:610566 errors:38851 dropped:0 overruns:0 frame:38851
>           TX packets:8731881 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:29 txqueuelen:100 
>           RX bytes:325771223 (310.6 Mb)  TX bytes:93685614 (89.3 Mb)
>           Interrupt:18 Base address:0x1000 Memory:f0480000-f04a0000 
> 
> eth1.2    Link encap:Ethernet  HWaddr 00:04:23:B5:C8:88 
>           inet addr:5.5.5.5  Bcast:5.255.255.255  Mask:255.255.0.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:13 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0 
>           RX bytes:0 (0.0 b)  TX bytes:2646 (2.5 Kb)
> 
> eth1.2:9  Link encap:Ethernet  HWaddr 00:04:23:B5:C8:88 
>           inet addr:169.254.253.242  Bcast:169.254.255.255 
> Mask:255.255.0.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
> I have configured it this way  BUT
> 
> when I try to ping outside world it fails and I see packets are 
> transmitted untagged.
> 


You need to confirm that the destination you are pinging is routable over eth1.2,
not some other interface (e.g. eth0).

Also, if you are looking at the packets with some netsniffer (e.g. ethereal) you
need to specify eth1 as the device to sniff.  If you specify eth1.2 you will see
untagged packets because they have been stripped/not yet tagged.

Alex