Hi Ben,
I am not sure if it's a tcpdump issue. If I use vlan splinters on the machine the interface does pick up the vlan packets and tcpdump also shows them. XXX ~]#tcpdump -i eth2 -ne icmp tcpdump: WARNING: eth2: no IPv4 address assigned tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth2, link-type EN10MB (Ethernet), capture size 65535 bytes 12:03:36.864214 a0:36:9f:3d:a7:e8 > 52:54:00:14:6e:80, ethertype 802.1Q (0x8100), length 102: vlan 1, p 0, ethertype IPv4, 172.16.1.1 > 172.16.1.240: ICMP echo request, id 6189, seq 1, length 64 12:03:36.865282 52:54:00:14:6e:80 > a0:36:9f:3d:a7:e8, ethertype 802.1Q (0x8100), length 102: vlan 1, p 0, ethertype IPv4, 172.16.1.240 > 172.16.1.1: ICMP echo reply, id 6189, seq 1, length 64 12:03:37.863701 a0:36:9f:3d:a7:e8 > 52:54:00:14:6e:80, ethertype 802.1Q (0x8100), length 102: vlan 1, p 0, ethertype IPv4, 172.16.1.1 > 172.16.1.240: ICMP echo request, id 6189, seq 2, length 64 12:03:37.864126 52:54:00:14:6e:80 > a0:36:9f:3d:a7:e8, ethertype 802.1Q (0x8100), length 102: vlan 1, p 0, ethertype IPv4, 172.16.1.240 > 172.16.1.1: ICMP echo reply, id 6189, seq 2, length 64 Regards, Madhur -----Original Message----- From: Ben Pfaff [mailto:[email protected]] Sent: 08 October 2014 20:49 To: Madhur Sethi Cc: '[email protected]' Subject: Re: [ovs-discuss] ovs del-port does not clean up ethX.Y vlan interfaces On Wed, Oct 08, 2014 at 07:38:31AM +0000, Madhur Sethi wrote: > [root@XXX ~]# tcpdump -i eth1 -ne arp > > tcpdump: WARNING: eth1: no IPv4 address assigned > > tcpdump: verbose output suppressed, use -v or -vv for full protocol decode > listening on eth1, link-type EN10MB (Ethernet), capture size 65535 bytes > > 16:30:13.035965 52:54:00:3c:77:f5 > Broadcast, ethertype 802.1Q (0x8100), > length 46: vlan 5, p 0, ethertype ARP, Request who-has 2.2.2.2 tell 2.2.2.3, > length 28 > > 16:30:14.038195 52:54:00:3c:77:f5 > Broadcast, ethertype 802.1Q (0x8100), > length 46: vlan 5, p 0, ethertype ARP, Request who-has 2.2.2.2 tell 2.2.2.3, > length 28 You're probably running into a tcpdump bug, see: http://serverfault.com/questions/544651/vlan-tags-not-shown-in-packet-capture-linux-via-tcpdump
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