> Is it 7.6-beta or 7.4?
> Ping is ICMP, but TOS sysctl only affects TCP. There must be another
> correlation.
> What exactly did you to? I would guess
> ping the machine from extern, does not work
> Log into console
> set sysctl net.inet.tcp.tso=0
> ping from extern starts working
> This is very unlikely as TCP and ICMP are unrelated.
> What could be possible that some large TSO packet is stuck in the
> network driver. By setting net.inet.tcp.tso=0 at boot time no such
> packet is generaded. Is that what you did?
> bluhm
I was wrong, TSO has no effect.
7.3:
ifconfig vio0
vio0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
lladdr 52:54:00:f1:31:af
index 1 priority 0 llprio 3
groups: egress
media: Ethernet autoselect
status: active
inet 185.104.251.193 netmask 0xffffff00 broadcast 185.104.251.255
inet6 fe80::5054:ff:fef1:31af%vio0 prefixlen 64 scopeid 0x1
inet6 2a09:5302:ffff::1c68 prefixlen 48
ifconfig vio0 hwfeatures
vio0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
hwfeatures=16<CSUM_TCPv4,CSUM_UDPv4,VLAN_MTU> hardmtu 16000
lladdr 52:54:00:f1:31:af
index 1 priority 0 llprio 3
groups: egress
media: Ethernet autoselect
status: active
inet 185.104.251.193 netmask 0xffffff00 broadcast 185.104.251.255
ping6 2a09:5302:ffff::1
PING 2a09:5302:ffff::1 (2a09:5302:ffff::1): 56 data bytes
64 bytes from 2a09:5302:ffff::1: icmp_seq=0 hlim=64 time=3.044 ms
64 bytes from 2a09:5302:ffff::1: icmp_seq=1 hlim=64 time=2.772 ms
64 bytes from 2a09:5302:ffff::1: icmp_seq=2 hlim=64 time=0.933 ms
64 bytes from 2a09:5302:ffff::1: icmp_seq=3 hlim=64 time=2.156 ms
^C
--- 2a09:5302:ffff::1 ping statistics ---
4 packets transmitted, 4 packets received, 0.0% packet loss
ndp -an
Neighbor Linklayer Address Netif Expire S
Flags
2a09:5302:ffff::1 84:b5:9c:6d:0f:c2 vio0 4s R R
2a09:5302:ffff::1c68 52:54:00:f1:31:af vio0 permanent R l
fe80::5054:ff:fef1:31af%vio0 52:54:00:f1:31:af vio0 permanent R l
7.4:
ifconfig vio
vio0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
lladdr 52:54:00:f1:31:af
index 1 priority 0 llprio 3
groups: egress
media: Ethernet autoselect
status: active
inet 185.104.251.193 netmask 0xffffff00 broadcast 185.104.251.255
inet6 fe80::5054:ff:fef1:31af%vio0 prefixlen 64 scopeid 0x1
inet6 2a09:5302:ffff::1c68 prefixlen 48
ifconfig vio hwfeatures
vio0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
hwfeatures=16<CSUM_TCPv4,CSUM_UDPv4,VLAN_MTU> hardmtu 16000
lladdr 52:54:00:f1:31:af
index 1 priority 0 llprio 3
groups: egress
media: Ethernet autoselect
status: active
inet 185.104.251.193 netmask 0xffffff00 broadcast 185.104.251.255
ping6 2a09:5302:ffff::1
PING 2a09:5302:ffff::1 (2a09:5302:ffff::1): 56 data bytes
^C
--- 2a09:5302:ffff::1 ping statistics ---
5 packets transmitted, 0 packets received, 100.0% packet loss
ndp -an
Neighbor Linklayer Address Netif Expire S
Flags
2a09:5302:ffff::1 (incomplete) vio0 expired I
2a09:5302:ffff::1c68 52:54:00:f1:31:af vio0 permanent R l
fe80::5054:ff:fef1:31af%vio0 52:54:00:f1:31:af vio0 permanent R l
7.5:
ifconfig vio
vio0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
lladdr 52:54:00:f1:31:af
index 1 priority 0 llprio 3
groups: egress
media: Ethernet autoselect
status: active
inet 185.104.251.193 netmask 0xffffff00 broadcast 185.104.251.255
inet6 fe80::5054:ff:fef1:31af%vio0 prefixlen 64 scopeid 0x1
inet6 2a09:5302:ffff::1c68 prefixlen 48
ifconfig vio hwfeatures
vio0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
hwfeatures=196<CSUM_TCPv4,CSUM_UDPv4,VLAN_MTU,CSUM_TCPv6,CSUM_UDPv6>
hardmtu 16000
lladdr 52:54:00:f1:31:af
index 1 priority 0 llprio 3
groups: egress
media: Ethernet autoselect
status: active
inet 185.104.251.193 netmask 0xffffff00 broadcast 185.104.251.255
ping6 2a09:5302:ffff::1
PING 2a09:5302:ffff::1 (2a09:5302:ffff::1): 56 data bytes
^C
--- 2a09:5302:ffff::1 ping statistics ---
4 packets transmitted, 0 packets received, 100.0% packet loss
ndp -an
Neighbor Linklayer Address Netif Expire S
Flags
2a09:5302:ffff::1 (incomplete) vio0 1s I 2
2a09:5302:ffff::1c68 52:54:00:f1:31:af vio0 permanent R l
fe80::5054:ff:fef1:31af%vio0 52:54:00:f1:31:af vio0 permanent R l
7.6-beta work on another virtual machine, also don't ping.
--
Alexander Shursha
