Moe information to help align the data nicely ....
First Host interfaces
[host04 ~]# ip link show eth0 | head
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1508 qdisc mq state UP
qlen 10000
link/ether e4:11:5b:95:03:4c brd ff:ff:ff:ff:ff:ff
vf 0 MAC 42:4c:43:50:01:64, vlan 610
vf 1 MAC 42:4c:43:50:01:6e, vlan 660
vf 2 MAC 72:c2:a2:12:00:64, vlan 610
vf 3 MAC 72:c2:a2:12:00:6e, vlan 660
vf 4 MAC 72:c2:a2:12:00:84, vlan 610
vf 5 MAC 72:c2:a2:12:00:8e, vlan 660
[host04 ~]# ethtool -k eth0
Features for eth0:
rx-checksumming: on
tx-checksumming: on
scatter-gather: on
tcp-segmentation-offload: on
udp-fragmentation-offload: off
generic-segmentation-offload: on
generic-receive-offload: off
large-receive-offload: off
rx-vlan-offload: on
tx-vlan-offload: on
ntuple-filters: off
receive-hashing: on
Guest on Host04
<s00c10h0:root>/root:
ip -6 addr add 2500:0:0:339::43/64 dev eth4
<s00c10h0:root>/root:
ip addr add 1.1.1.1/24 dev eth4 broadcast 1.1.1.255 label eth4:1
<00c10h0:root>/root:
# ip addr ls eth4
2: eth4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
state UP qlen 10000
link/ether 42:4c:43:50:01:64 brd ff:ff:ff:ff:ff:ff
inet 1.1.1.1/24 brd 1.1.1.255 scope global eth4:1
inet6 2500:0:0:339::43/64 scope global
valid_lft forever preferred_lft forever
inet6 fe80::404c:43ff:fe50:164/64 scope link
valid_lft forever preferred_lft forever
<00c10h0:root>/root:
# ethtool -k eth4
Features for eth4:
rx-checksumming: on
tx-checksumming: on
scatter-gather: on
tcp-segmentation-offload: on
udp-fragmentation-offload: off
generic-segmentation-offload: on
generic-receive-offload: off
large-receive-offload: off
rx-vlan-offload: on
tx-vlan-offload: on
ntuple-filters: off
receive-hashing: off
2nd Host: Host12
[host12 ~]# ip link show eth0 | head
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1508 qdisc mq state UP
qlen 10000
link/ether e4:11:5b:95:05:00 brd ff:ff:ff:ff:ff:ff
vf 0 MAC 42:4c:43:50:11:64, vlan 610
vf 1 MAC 42:4c:43:50:11:6e, vlan 660
vf 2 MAC 72:c2:a2:12:00:74, vlan 610
vf 3 MAC 72:c2:a2:12:00:7e, vlan 660
vf 4 MAC 72:c2:a2:12:00:94, vlan 610
vf 5 MAC 72:c2:a2:12:00:9e, vlan 660
vf 6 MAC 00:00:00:00:00:00
vf 7 MAC 00:00:00:00:00:00
[host12 ~]# ethtool -k eth0
Features for eth0:
rx-checksumming: on
tx-checksumming: on
scatter-gather: on
tcp-segmentation-offload: on
udp-fragmentation-offload: off
generic-segmentation-offload: on
generic-receive-offload: off
large-receive-offload: off
rx-vlan-offload: on
tx-vlan-offload: on
ntuple-filters: off
receive-hashing: on
Guest on Host12
<s01c10h0:root>/root:
ip -6 addr add 2500:0:0:339::42/64 dev eth4
<s01c10h0:root>/root:
ip addr add 1.1.1.2/24 dev eth4 broadcast 1.1.1.255 label eth4:2
<s01c10h0:root>/root:
# ip addr ls eth4
2: eth4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
state UP qlen 10000
link/ether 42:4c:43:50:11:64 brd ff:ff:ff:ff:ff:ff
inet 1.1.1.2/24 brd 1.1.1.255 scope global eth4:2
inet6 2500:0:0:339::42/64 scope global
valid_lft forever preferred_lft forever
inet6 fe80::404c:43ff:fe50:1164/64 scope link
valid_lft forever preferred_lft forever
# ethtool -k eth4
Features for eth4:
rx-checksumming: on
tx-checksumming: on
scatter-gather: on
tcp-segmentation-offload: on
udp-fragmentation-offload: off
generic-segmentation-offload: on
generic-receive-offload: off
large-receive-offload: off
rx-vlan-offload: on
tx-vlan-offload: on
ntuple-filters: off
receive-hashing: off
ping between 1.1.1.1 and 1.1.1.2 worked without issue.
ping6 between 2500:0:0:339::42 and 2500:0:0:339:ffff:ffff:ffff:fffe
(subnet gateway on external Omniswitch) worked without issue.
ping6 between 2500:0:0:339::43 and 2500:0:0:339:ffff:ffff:ffff:fffe
(subnet gateway on external Omniswitch) worked without issue.
ping6 between 2500:0:0:339::42 and 2500:0:0:339::43 did not work...
tcpdump on the receiving eth4 interface did not show ANY traffic at the
guest level. A tcpdump at the host level on eth0 showed the following
- packets...
[host04 ~]# tcpdump -i eth0 -SNevvl ether host
42:4c:43:50:01:64
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size
65535 bytes
19:11:39.459090 42:4c:43:50:01:64 (oui Unknown) > 33:33:ff:00:00:42 (oui
Unknown), et2
source link-address option (1), length 8 (1): 42:4c:43:50:01:64
0x0000: 424c 4350 0164
19:11:40.459104 42:4c:43:50:01:64 (oui Unknown) > 33:33:ff:00:00:42 (oui
Unknown), et2
source link-address option (1), length 8 (1): 42:4c:43:50:01:64
0x0000: 424c 4350 0164
19:11:42.460093 42:4c:43:50:01:64 (oui Unknown) > 33:33:ff:00:00:42 (oui
Unknown), et2
source link-address option (1), length 8 (1): 42:4c:43:50:01:64
0x0000: 424c 4350 0164