On Sat, Sep 07, 2024 at 01:38:08PM +0300, Alexander Shursha wrote: > I was wrong, TSO has no effect.
Good. Then this report makes more sense. > 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 Usually with such bugs I turn off pf. Maybe it blocks some ICMPv6. Does it work after pfctl -d ? Then do some tcpdump to see if neigbor discovery packets go in or out. tcpdump -i pflog0 may also help debugging. bluhm