Hi all. I'm try to get working ecmp with ipv6 and bird 1.4. Now i'm not understand why routes to test ip installed and removed after 3-5 seconds. Can somebody helps me? In log i have : Apr 6 15:14:31 rl01 bird6: device1: Scanning interfaces Apr 6 15:14:31 rl01 bird6: kernel1: Scanning routing table Apr 6 15:14:31 rl01 bird6: kernel1: 2001:db8:0:f101:ccde:85ff:fe22:ec43/128: will be updated Apr 6 15:14:31 rl01 bird6: kernel1: 2001:db8:0:f101:ccde:85ff:fe22:ec43/128: already seen Apr 6 15:14:31 rl01 bird6: kernel1: Pruning table master Apr 6 15:14:31 rl01 bird6: kernel1: 2001:db8:0:f101:ccde:85ff:fe22:ec43/128: updating Apr 6 15:14:31 rl01 bird6: Netlink: No such process Apr 6 15:14:31 rl01 bird6: kernel1: Pruning inherited routes Apr 6 15:14:32 rl01 bird6: radv1: Timer fired on eth1 Apr 6 15:14:32 rl01 bird6: radv1: Sending RA via eth1 Apr 6 15:14:32 rl01 bird6: radv1: Timer fired on eth0 Apr 6 15:14:32 rl01 bird6: radv1: Sending RA via eth0 Apr 6 15:14:32 rl01 bird6: ospf1: HELLO packet received from fe80::225:90ff:fe97:a719 via eth1 Apr 6 15:14:32 rl01 bird6: ospf1: HELLO packet received from fe80::225:90ff:fe97:a718 via eth0 Apr 6 15:14:37 rl01 bird6: device1: Scanning interfaces Apr 6 15:14:37 rl01 bird6: kernel1: Scanning routing table Apr 6 15:14:37 rl01 bird6: kernel1: Pruning table master Apr 6 15:14:37 rl01 bird6: kernel1: 2001:db8:0:f101:ccde:85ff:fe22:ec43/128: reinstalling Apr 6 15:14:37 rl01 bird6: kernel1: Pruning inherited routes Apr 6 15:14:37 rl01 bird6: ospf1: HELLO packet sent via eth1 Apr 6 15:14:37 rl01 bird6: ospf1: HELLO packet sent via eth0 Apr 6 15:14:37 rl01 bird6: ospf1: HELLO packet received from fe80::225:90ff:fe97:a719 via eth1 Apr 6 15:14:37 rl01 bird6: ospf1: HELLO packet received from fe80::225:90ff:fe97:a718 via eth0 Apr 6 15:14:42 rl01 bird6: ospf1: HELLO packet sent via eth0 Apr 6 15:14:42 rl01 bird6: ospf1: HELLO packet sent via eth1 Apr 6 15:14:42 rl01 bird6: device1: Scanning interfaces Apr 6 15:14:42 rl01 bird6: kernel1: Scanning routing table Apr 6 15:14:42 rl01 bird6: kernel1: 2001:db8:0:f101:ccde:85ff:fe22:ec43/128: will be updated Apr 6 15:14:42 rl01 bird6: kernel1: 2001:db8:0:f101:ccde:85ff:fe22:ec43/128: already seen Apr 6 15:14:42 rl01 bird6: kernel1: Pruning table master Apr 6 15:14:42 rl01 bird6: kernel1: 2001:db8:0:f101:ccde:85ff:fe22:ec43/128: updating Apr 6 15:14:42 rl01 bird6: Netlink: No such process Apr 6 15:14:42 rl01 bird6: kernel1: Pruning inherited routes Apr 6 15:14:42 rl01 bird6: ospf1: HELLO packet received from fe80::225:90ff:fe97:a719 via eth1 Apr 6 15:14:42 rl01 bird6: ospf1: HELLO packet received from fe80::225:90ff:fe97:a718 via eth0 rl01 bird config: log syslog all; #{error, info}; router id 172.16.250.251; debug protocols all; protocol kernel { learn; scan time 5; # Scan kernel routing table every 20 seconds import all; # Default is import all export all; # Default is export none } protocol direct { interface "eth0", "eth1", "dummy0"; export all; import all; } protocol device { scan time 5; # Scan interfaces every 10 seconds } protocol radv { interface "eth0" { max ra interval 30; link mtu 9000; prefix 2001:db8:0:f102::/64; }; interface "eth1" { max ra interval 30; link mtu 9000; prefix 2001:db8:0:f103::/64; }; } filter ospf_filter { if net ~ [ ::/0 ] then reject; else accept; } protocol ospf { tick 5; ecmp 4; import filter ospf_filter; export all; #filter ospf_filter; area 0 { interface "eth0","eth1" { check link yes; cost 5; hello 5; retransmit 2; wait 10; dead 20; ecmp weight 5; }; interface "dummy0" { stub yes; cost 1; }; stubnet 2001:db8:0:f101::/128; }; } birdc6 show route BIRD 1.4.0 ready. 2001:db8:0:f101:ccde:85ff:fe22:ec43/128 multipath [ospf1 15:14:27] ! I (150/5) [172.16.250.8] via fe80::225:90ff:fe97:a718 on eth0 weight 5 via fe80::225:90ff:fe97:a719 on eth1 weight 5 2001:db8:0:f101:e010:b8ff:feb6:d4a/128 dev dummy0 [direct1 15:14:16] * (240) dev dummy0 [ospf1 15:14:17] I (150/0) [172.16.250.251] 2001:db8:0:f103::/64 dev eth1 [direct1 15:14:16] * (240) dev eth1 [ospf1 15:14:27] I (150/5) [172.16.250.8] 2001:db8:0:f102::/64 dev eth0 [direct1 15:14:16] * (240) dev eth0 [ospf1 15:14:27] I (150/5) [172.16.250.8] birdc6 show ospf top BIRD 1.4.0 ready. area 0.0.0.0 router 172.16.250.8 distance 5 network [172.16.250.8-2] metric 5 network [172.16.250.8-3] metric 5 router 172.16.250.251 distance 0 network [172.16.250.8-2] metric 5 network [172.16.250.8-3] metric 5 network [172.16.250.8-2] distance 5 router 172.16.250.8 router 172.16.250.251 network [172.16.250.8-3] distance 5 router 172.16.250.8 router 172.16.250.251 birdc6 show ospf ne BIRD 1.4.0 ready. ospf1: Router ID Pri State DTime Interface Router IP 172.16.250.8 1 full/dr 00:20 eth0 fe80::225:90ff:fe97:a718 172.16.250.8 1 full/dr 00:20 eth1 fe80::225:90ff:fe97:a719 birdc6 show interfaces BIRD 1.4.0 ready. lo up (index=1) MultiAccess AdminUp LinkUp Loopback Ignored MTU=65536 ::1/128 (Primary, scope host) eth0 up (index=2) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=9000 2001:db8:0:f102:92e2:baff:fe31:44c/64 (Primary, scope univ) fe80::92e2:baff:fe31:44c/64 (Unselected, scope link) eth1 up (index=3) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=9000 2001:db8:0:f103:92e2:baff:fe31:44d/64 (Primary, scope univ) fe80::92e2:baff:fe31:44d/64 (Unselected, scope link) eth2 DOWN (index=4) MultiAccess Broadcast Multicast AdminDown LinkDown MTU=1500 eth3 up (index=5) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 fe80::92e2:baff:fe31:44f/64 (Primary, scope link) eth4 up (index=6) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 fe80::225:90ff:fea1:82a6/64 (Primary, scope link) eth5 DOWN (index=7) MultiAccess Broadcast Multicast AdminDown LinkDown MTU=1500 bond0 DOWN (index=8) MultiAccess Broadcast Multicast AdminDown LinkDown MTU=1500 ovs-system DOWN (index=9) MultiAccess Broadcast Multicast AdminDown LinkDown MTU=1500 ovs-vm up (index=10) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 fe80::b485:3ff:fe6b:e1f5/64 (Primary, scope link) dummy0 up (index=11) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 2001:db8:0:f101:e010:b8ff:feb6:d4a/128 (Primary, scope univ) fe80::94c5:c3ff:fe84:dd26/64 (Unselected, scope link) -- Vasiliy Tolstov,