Re: bird does not install route to the kernel

29 Aug 2016


      Here they are


R0

router id 198.51.100.10;

protocol kernel {
         scan time 60;
         import all;
         export all;   # Actually insert routes into the kernel routing 
table
}

protocol device {
         scan time 60;
}

protocol ospf TEST_OSPF {
         tick 2;
         rfc1583compat yes;
         import all;
         export all;
         ecmp yes;
         merge external;
         area 0.0.0.0 {
                 interface "eth0" {
                   stub yes;
                 };
                 interface "eth1" {
                   rx buffer large;
                 };
         };
};


R1

router id 198.51.100.11;

protocol kernel {
         scan time 60;
         import all;
         export all;   # Actually insert routes into the kernel routing 
table
}

protocol device {
         scan time 60;
}

protocol ospf TEST_OSPF {
         tick 2;
         rfc1583compat yes;
         import all;
         export all;
         ecmp yes;
         merge external;
         area 0.0.0.0 {
                 interface "eth0" {
                   rx buffer large;
                 };
                 interface "eth1" {
                   rx buffer large;
                 };
         };
};


On 08/29/2016 12:55 PM, Baptiste Jonglez wrote:
...
Please show your configuration, especially the kernel protocol.  You need
an appropriate export filter.
On Thu, Aug 25, 2016 at 05:22:33PM +0300, Volodymyr Samodid wrote:
...
Hi community,
i played with bird6 and ospf3 and faced with issue.
In my schema bird does not install route to the kernel, but propagates route
to another ospfv3 routers. That leads to routing loop.
Here is simple schema:
eth0 ------- R0 ------- eth1 ------- bridge ------ eth0 ------- R1
ospfv3 made  adjacency
R0
bird> show ospf neighbors
TEST_OSPF:
Router ID       Pri          State      DTime   Interface  Router IP
198.51.100.11     1     Full/BDR        00:34   eth1
fe80::602c:e2ff:fe96:9c41
R1
bird> show ospf neighbors
TEST_OSPF:
Router ID       Pri          State      DTime   Interface  Router IP
198.51.100.10     1     Full/DR         00:34   eth0
fe80::88e0:e3ff:fe08:7842
Now add ipv6 address to eth1 on R0
R0# ip a add 2001:DB8::1/64 dev eth1
on R1, got next
bird> >>> TEST_OSPF > added [best] 2001:db8::/64 dev eth0
bird> show route
2001:db8::/64      dev eth0 [TEST_OSPF 13:58:11] * I (150/10)
[198.51.100.11]
R1# ip -6 ro s
fe80::/64 dev eth0  proto kernel  metric 256  pref medium
added ipv6 address to eth0 on R0
R0# ip a add 2001:DB8:1::1/64 dev eth0
on R1
bird> >>> TEST_OSPF > added [best] 2001:db8:1::/64 via
fe80::88e0:e3ff:fe08:7842 on eth0
...
...
...
kernel1 < added 2001:db8:1::/64 via fe80::88e0:e3ff:fe08:7842 on eth0
bird> show route
2001:db8::/64      dev eth0 [TEST_OSPF 13:58:11] * I (150/10)
[198.51.100.11]
2001:db8:1::/64    via fe80::88e0:e3ff:fe08:7842 on eth0 [TEST_OSPF
14:05:31] * I (150/20) [198.51.100.10]
R1# ip -6 ro s
2001:db8:1::/64 via fe80::88e0:e3ff:fe08:7842 dev eth0  proto bird metric
1024  pref medium
fe80::/64 dev eth0  proto kernel  metric 256  pref medium
R1## ip monitor route
2001:db8:1::/64 via fe80::88e0:e3ff:fe08:7842 dev eth0  proto bird metric
1024  pref medium
I can add such route manual.
R1# ip ro add 2001:db8::/64 dev eth0
-- 
С уважением,
Самодед Владимир
SVAJ-RIPE|SVA88-UANIC