On Tue, Apr 11, 2017 at 03:36:50PM -0400, carl h wrote: > > I tried to manually configure a vlan on my target device. I use these > 2 vlan config commands, then I ping an IP address and sniff the > packets to look for the vlan tag in the messages. > > vconfig add esw0 > ifconfig esw0.10 10.93.1.2 netmask 255.255.255.0
I would rather suggest ip link add esw0.10 link esw0 type vlan id 10 ip addr add 10.93.1.2/24 brd + dev esw0.10 ip link set esw0.10 up > Despite my attempts, tagging does not occur in any outgoing packets. How do you check? If with tcpdump, on which interface? > However when I tried the exact same method and commands on my Ubuntu > workstation vlan tagging did work without problems. > > Target: mips32, Linux 2.6.39, 802.1Q driver version 1.8 With older versions of libpcap, tcpdump wouldn't show VLAN tags if vlan information was passed in metadata rather than as a tag in packet itself (which is usually the case when outgoing/incoming device supports hardware vlan tagging/stripping). Make sure this is not your case. Michal Kubecek
