HelloI am attempting to configure VXLAN in dynamic mode on OpenBSD 6.1 and I am running into problems. My setup is as follows...
I have two 6.1 virtuals setup running under QEMU. Each virtual has a vether0 interface and a vxlan0 interface attached to a bridge0 interface. Each virtual has a vio0 interface that gets DHCP from a DHCP server on different virtual networks. On the QEMU server I attach each tap interface to a separate bridge interface. There is a third virtual running as a router and it has 2 interfaces, one in each QEMU bridge. See diagram below.
[ obsd01 vio0 ] -- tap0 -- bridge0 -- tap8 -- [ vio0 rtrbsd vio1 ] -- tap9 -- bridge 1 -- tap1 -- [ obsd02 vio0 ]
I have verified that I can ping from obsd01 vio0 to obsd02 vio0 so routing appears to be working. On rtrbsd I have configured mrouted and I have confirmed that using tcpdump that I see IGMP probes on both tap8 and tap9 interface as well as the tap0 and tap1 interfaces.
On all systems (obsd01, rtrbsd, obsd02, and the QEMU server) i have the following /etc/pf.conf so I can eliminate the firewall as being a factor.
----- set skip on lo pass -----I have also enabled multicast on all systems using the 'rcctl enable multicast' command and I have set the net.inet.ip.{m,}forwarding sysctls to 1. On each obsd01/02 system I have made sure that the tunnelttl on the vxlan0 interface is set to 10.
I have included the config files, dmesg, etc as an attachment to the email.
The problem that I cannot explain is when I ping from obsd01 vether0 to obsd02 vether0 and I do a tcpdump on rtbsd vio0 I never see any IGMP packets from the obsd01/02 system, but I do see VXLAN packets. However the destination MAC address is broadcast (all ff's) and not a multicast address like I would expect. Side note, the TTL on the packets is 10 and matches the tunnelttl setting.
If anyone has an idea of what I am doing wrong I would appreciate a pointer in the right direction.
Thanks in advance.
vxlan-configs.tgz
Description: GNU Zip compressed data
