OK... but why does it need to be a trunk port? Boris. On Sat, Jan 24, 2015 at 6:53 PM, SilverTip257 <silvertip257@xxxxxxxxx> wrote: > Andrew and Dennis are spot on. > Their conclusions about your server being connected to an access port and > not a trunk port would be my conclusion as well. > > On Sat, Jan 24, 2015 at 9:11 AM, Dennis Jacobfeuerborn < > dennisml@xxxxxxxxxxxx> wrote: > > > Hi Boris, > > what I'd like to know is the actual VLAN configuration of the switch > > port (link-type and tagged and untagged VLANs). When I look at the > > switchport coniguration here I get (among other things): > > > > ... > > Port link-type: trunk > > Tagged VLAN ID : 8, 1624 > > Untagged VLAN ID : 10 > > ... > > > > Here is my suspicion: > > Your ports have an access link-type with an untagged VLAN ID of 48. That > > would explain why the moment you configure an IP from that VLAN on eth0 > > you get connectivity because then the packets the Linux box sends are > > untagged as the switch would expect them to be. If you only put an > > address on eth0.48 then the packets get tagged by Linux but if the > > switch port is not configured to receive the packets for VLAN 48 as > > tagged then it will simply drop these packets and you will not get > > connectivity. > > > > Additionally, the switch should gripe about 802.1q BPDUs. > Check the in-memory system log (or syslog server if you have configured > that). > > show logging | i 1Q > > Example: > 1w1d: %SPANTREE-2-RECV_1Q_NON_TRUNK: > Received 802.1Q BPDU on non trunk FastEthernet0/2 on vlan 100. > > > > > > So getting the actual VLAN config of the switch port would help to > > determine if the switch actually expects to receive the packets the way > > you send them from the Linux box. > > > > > +1 > Let's see the config for the switch port your server is connected to. > > -- > ---~~.~~--- > Mike > // SilverTip257 // > _______________________________________________ > CentOS mailing list > CentOS@xxxxxxxxxx > http://lists.centos.org/mailman/listinfo/centos > _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos