Public bug reported: Environment: ------------------- Ubuntu Server 15.04 Release 20070815-1.4
Hello guys, It is impossible to ping my own system with ICMPv6, although everything seems to be correctly configured: Tap Interface: [CODE]root@MSI-GE60-Ubuntu:/usr/share/applications# ifconfig tap0 tap0 Link encap:Ethernet HWaddr 5e:22:3a:fd:01:d6 inet addr:192.168.137.1 Bcast:192.168.137.255 Mask:255.255.255.0 inet6 addr: fc00:137::1/64 Scope:Global UP BROADCAST MULTICAST MTU:1500 Metric:1[/CODE] Firewall: [CODE]-A ufw6-before-input -p icmpv6 --icmpv6-type echo-request -j ACCEPT[/CODE] Routing Table: [CODE]root@MSI-GE60-Ubuntu:/usr/share/applications# route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If fc00::/64 :: U 256 0 0 virbr0 fc00:127::/64 :: U 256 0 0 tap1 fc00:137::/64 :: U 256 0 0 tap0 fc01::/64 :: U 256 0 0 virbr1 fe80::/64 :: U 256 0 0 vmnet1 fe80::/64 :: U 256 0 0 vmnet2 fe80::/64 :: U 256 0 0 vmnet3 fe80::/64 :: U 256 0 0 vmnet4 fe80::/64 :: U 256 0 0 vmnet8 fe80::/64 :: U 256 0 0 wlan0 ::/0 :: !n -1 1 14134 lo ::1/128 :: Un 0 9 304 lo[/CODE] But it is impossible to ping tap0: [CODE]root@MSI-GE60-Ubuntu:/usr/share/applications# ping6 FC00:137::1 PING FC00:137::1(fc00:137::1) 56 data bytes >From ::1 icmp_seq=1 Destination unreachable: Address unreachable >From ::1 icmp_seq=2 Destination unreachable: Address unreachable >From ::1 icmp_seq=3 Destination unreachable: Address unreachable[/CODE] while at the time I can ping l0: [CODE]root@MSI-GE60-Ubuntu:/usr/share/applications# ping6 ::1 PING ::1(::1) 56 data bytes 64 bytes from ::1: icmp_seq=1 ttl=64 time=0.040 ms 64 bytes from ::1: icmp_seq=2 ttl=64 time=0.041 ms[/CODE] Maybe someone has a clue or know the difference between U flag and Un flag. ** Affects: uml-utilities (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1454190 Title: IPv6 Connectivity Issue To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/uml-utilities/+bug/1454190/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs