https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=221446
Bug ID: 221446
Summary: add net default: gateway [IPv6 gateway] fib 0: route
already in table
Product: Base System
Version: 11.1-STABLE
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: bin
Assignee: freebsd-bugs@FreeBSD.org
Reporter: ad...@support.od.ua
Created attachment 185322
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=185322&action=edit
/boot/loader.conf
In the continuation of Bug ID 221445.
After a little tuning in /boot/loader.conf and /etc/sysctl.conf I get in the
logs:
...
Aug 12 18:00:50 tank1 kernel: em0: link state changed to UP
Aug 12 18:00:50 tank1 kernel: Starting Network: lo0 em0.
Aug 12 18:00:50 tank1 kernel: lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST>
metric 0 mtu 16384
Aug 12 18:00:50 tank1 kernel:
options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
Aug 12 18:00:50 tank1 kernel: inet6 ::1 prefixlen 128
Aug 12 18:00:50 tank1 kernel: inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2
Aug 12 18:00:50 tank1 kernel: inet 127.0.0.1 netmask 0xff000000
Aug 12 18:00:50 tank1 kernel: nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
Aug 12 18:00:50 tank1 kernel: groups: lo
Aug 12 18:00:50 tank1 kernel: em0:
flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
Aug 12 18:00:50 tank1 kernel:
options=4219b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_MAGIC,VLAN_HWTSO>
Aug 12 18:00:50 tank1 kernel: ether 00:22:4d:ad:ff:dc
Aug 12 18:00:50 tank1 kernel: hwaddr 00:22:4d:ad:ff:dc
Aug 12 18:00:50 tank1 kernel: inet6 2001:41d0:e:340::1 prefixlen 128
Aug 12 18:00:50 tank1 kernel: inet6 fe80::222:4dff:fead:ffdc%em0 prefixlen 64
scopeid 0x1
Aug 12 18:00:50 tank1 kernel: nd6
options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>
Aug 12 18:00:50 tank1 kernel: media: Ethernet autoselect (100baseTX
<full-duplex>)
Aug 12 18:00:50 tank1 kernel: status: active
Aug 12 18:00:50 tank1 kernel: Starting devd.
Aug 12 18:00:50 tank1 kernel: Starting dhclient.
Aug 12 18:00:50 tank1 kernel: DHCPREQUEST on em0 to 255.255.255.255 port 67
Aug 12 18:00:50 tank1 kernel: DHCPACK from 5.196.XX.XXX
Aug 12 18:00:50 tank1 kernel: bound to 5.196.XX.XXX -- renewal in 300 seconds.
Aug 12 18:00:50 tank1 kernel: add host 127.0.0.1: gateway lo0 fib 0: route
already in table
Aug 12 18:00:50 tank1 kernel: add host ::1: gateway lo0 fib 0: route already in
table
Aug 12 18:00:50 tank1 kernel: add net fe80::: gateway ::1
Aug 12 18:00:50 tank1 kernel: add net ff02::: gateway ::1
Aug 12 18:00:50 tank1 kernel: add net ::ffff:0.0.0.0: gateway ::1
Aug 12 18:00:50 tank1 kernel: add net ::0.0.0.0: gateway ::1
Aug 12 18:00:50 tank1 kernel: add host 2001:41d0:000e:03ff:ff:ff:ff:ff: gateway
em0
Aug 12 18:00:50 tank1 kernel: add net default: gateway
2001:41d0:000e:03ff:ff:ff:ff:ff fib 0: route already in table
Aug 12 18:00:50 tank1 kernel: ipfw2 (+ipv6) initialized, divert loadable, nat
loadable, default to deny, logging disabled
...
# uname -a
FreeBSD tank1.storage.com 11.1-STABLE FreeBSD 11.1-STABLE #0 r322164: Mon Aug
7 15:33:19 UTC 2017
r...@releng2.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC amd64
cat /etc/rc.conf:
...
ifconfig_em0="DHCP"
ipv6_default_interface="em0"
ifconfig_em0_ipv6="inet6 accept_rtadv 2001:41d0:e:XXX::1/128"
ipv6_static_routes="ipv6gw"
ipv6_route_ipv6gw="-host 2001:41d0:000e:03ff:ff:ff:ff:ff -iface em0"
ipv6_defaultrouter="2001:41d0:000e:03ff:ff:ff:ff:ff"
ipv6_activate_all_interfaces="YES"
...
# netstat -rn6
Routing tables
Internet6:
Destination Gateway Flags Netif
Expire
::/96 ::1 UGRS lo0
default fe80::12bd:18ff:fee5:ff80%em0 UG em0
::1 link#2 UH lo0
::ffff:0.0.0.0/96 ::1 UGRS lo0
2001:41d0:e:XXX::/56 link#1 U em0
2001:41d0:e:XXX::1 link#1 UHS lo0
2001:41d0:e:3ff:ff:ff:ff:ff 00:22:4d:ad:ff:dc UHS em0
fe80::/10 ::1 UGRS lo0
fe80::%em0/64 link#1 U em0
fe80::222:4dff:fead:ffdc%em0 link#1 UHS lo0
fe80::%lo0/64 link#2 U lo0
fe80::1%lo0 link#2 UHS lo0
ff02::/16 ::1 UGRS lo0
I was helped by manual commands to restore Ipv6:
route delete -6 default
route add -6 default 2001:41d0:000e:03ff:ff:ff:ff:ff
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