Date: Sun, 15 May 2022 12:08:01 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 263986] IPv6 address gets detached when using multiple IPv6 routers Message-ID: <bug-263986-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D263986 Bug ID: 263986 Summary: IPv6 address gets detached when using multiple IPv6 routers Product: Base System Version: 13.0-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: filipe@zarco.org On my LAN, I have 2 routers sending ICMPv6 RA. One is the default gateway advertising the IPv6 global prefix. The other one advertises the IPv6 ULA prefix. On a FreeBSD host, using the following interface configuration on /etc/rc.c= onf, the ULA address is marked as detached and its on-link route deleted from the routing table. ifconfig_em0=3D"DHCP" ifconfig_em0_ipv6=3D"inet6 accept_rtadv" # ifconfig em0 em0: flags=3D8863<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 =20=20=20=20=20=20=20 options=3D481009b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,VLAN_HW= FILTER,NOMAP> ether 08:00:27:6b:a5:36 inet6 fe80::a00:27ff:fe6b:a536%em0 prefixlen 64 scopeid 0x1 inet6 fd09:xxxx:xxxx:xxxx:a00:27ff:fe6b:a536 prefixlen 64 detached autoconf inet6 2001:xxxx:xxxx:xxxx:a00:27ff:fe6b:a536 prefixlen 64 autoconf inet 192.168.1.20 netmask 0xffffff00 broadcast 192.168.1.255 media: Ethernet autoselect (1000baseT <full-duplex>) status: active nd6 options=3D23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL> This network setup works fine with other OS. The RA message details are the following: # rdisc6 em0 Soliciting ff02::2 (ff02::2) on em0... Hop limit : 64 ( 0x40) Stateful address conf. : No Stateful other conf. : No Mobile home agent : No Router preference : medium Neighbor discovery proxy : No Router lifetime : 0 (0x00000000) seconds Reachable time : unspecified (0x00000000) Retransmit time : unspecified (0x00000000) Prefix : fd09:xxxx:xxxx:xxxx::/64 On-link : Yes Autonomous address conf.: Yes Valid time : 180000 (0x0002bf20) seconds Pref. time : 90000 (0x00015f90) seconds Route : fd09:xxxx:xxxx::/60 Route preference : medium Route lifetime : 1800 (0x00000708) seconds Source link-layer address: XX:XX:XX:B0:FA:F4 from fe80::x:x:feb0:faf4 Hop limit : 64 ( 0x40) Stateful address conf. : No Stateful other conf. : Yes Mobile home agent : No Router preference : low Neighbor discovery proxy : No Router lifetime : 1800 (0x00000708) seconds Reachable time : unspecified (0x00000000) Retransmit time : unspecified (0x00000000) Prefix : 2001:xxxx:xxxx:xxxx::/64 On-link : Yes Autonomous address conf.: Yes Valid time : 90000 (0x00015f90) seconds Pref. time : 90000 (0x00015f90) seconds Route : 2001:xxxx:xxxx:xxxx::/64 Route preference : high Route lifetime : 90000 (0x00015f90) seconds Source link-layer address: 00:XX:XX:9E:1D:2F from fe80::x:x:fe9e:1d2f --=20 You are receiving this mail because: You are the assignee for the bug.=
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