Change Details

Before this change epair interfaces get a random MAC. This does not help dhcp/dyndns when an epair gets destroyed/recreated after restart of a jail. $ sysctl net.link.epair.ether_gen_addr=0 $ ifconfig epair8 create > /dev/null; ifconfig epair8a | grep ether; ifconfig epair8a destroy # (twice) ether 02:2d:06:05:7f:0a ether 02:69:49:fa:c4:0a $ sysctl net.link.epair.ether_gen_addr=1 $ ifconfig epair8 create > /dev/null; ifconfig epair8a | grep ether; ifconfig epair8a destroy # (twice) ether 58:9c:fc:10:2b:b4 ether 58:9c:fc:10:2b:b4 A follow up commit will change the default to 1 in main. When no issues appear within about 2 weeks I would like to remove the "old" code and the sysctl. MFC after: 2 weeks Relnotes: yes

Before this change epair interfaces get a random MAC. This does not help dhcp/dyndns when an epair gets destroyed/recreated after restart of a jail. $ sysctl net.link.epair.ether_gen_addr=0 $ ifconfig epair8 create > /dev/null; ifconfig epair8a | grep ether; ifconfig epair8b | grep ether; ifconfig epair8a destroy ether 02:cb:78:56:e4:0a ether 02:cb:78:56:e4:0b $ ifconfig epair8 create > /dev/null; ifconfig epair8a | grep ether; ifconfig epair8b | grep ether; ifconfig epair8a destroy ether 02:8b:9b:6a:8f:0a ether 02:8b:9b:6a:8f:0b $ sysctl net.link.epair.ether_gen_addr=1 $ ifconfig epair8 create > /dev/null; ifconfig epair8a | grep ether; ifconfig epair8b | grep ether; ifconfig epair8a destroy ether 58:9c:fc:10:2b:b4 ether 58:9c:fc:00:39:10 $ ifconfig epair8 create > /dev/null; ifconfig epair8a | grep ether; ifconfig epair8b | grep ether; ifconfig epair8a destroy ether 58:9c:fc:10:2b:b4 ether 58:9c:fc:00:39:10 A follow up commit will change the default to 1 in main. When no issues appear within about 2 weeks I would like to remove the "old" code and the sysctl. MFC after: 2 weeks Relnotes: yes

Before this change epair interfaces get a random MAC. This does not help dhcp/dyndns when an epair gets destroyed/recreated after restart of a jail. $ sysctl net.link.epair.ether_gen_addr=0 $ ifconfig epair8 create > /dev/null; ifconfig epair8a | grep ether; ifconfig epair8a destroy # (twice) ether 02:2d:06:05:7f:0ab | grep ether; ifconfig epair8a destroy ether 02:69:49:fa:c4:0a ether 02:cb:78:56:e4:0a ether 02:cb:78:56:e4:0b $ ifconfig epair8 create > /dev/null; ifconfig epair8a | grep ether; ifconfig epair8b | grep ether; ifconfig epair8a destroy ether 02:8b:9b:6a:8f:0a ether 02:8b:9b:6a:8f:0b $ sysctl net.link.epair.ether_gen_addr=1 $ ifconfig epair8 create > /dev/null; ifconfig epair8a | grep ether; ifconfig epair8b | grep ether; ifconfig epair8a destroy # (twice) ether 58:9c:fc:10:2b:b4 ether 58:9c:fc:00:39:10 $ ifconfig epair8 create > /dev/null; ifconfig epair8a | grep ether; ifconfig epair8b | grep ether; ifconfig epair8a destroy ether 58:9c:fc:10:2b:b4 ether 58:9c:fc:00:39:10 A follow up commit will change the default to 1 in main. When no issues appear within about 2 weeks I would like to remove the "old" code and the sysctl. MFC after: 2 weeks Relnotes: yes