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[Bug 427] Zebra "autogenerates" ipv6 kernel routes when receiving routes from ospf6d

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bugzilla-daemon at allevil

Dec 2, 2007, 2:22 PM

Post #1 of 2 (1118 views)
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[Bug 427] Zebra "autogenerates" ipv6 kernel routes when receiving routes from ospf6d

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http://bugzilla.quagga.net/show_bug.cgi?id=427

------- Additional Comments From quagga.net [at] m 2007-12-02 22:22 -------
As was asked on irc, here are examples of netstat -rnf inet6 :

Internet6:
Destination Gateway Flags Netif
Expire
::/96 ::1 UGRS lo0
::1 ::1 UHL lo0
::ffff:0.0.0.0/96 ::1 UGRS lo0
2001:910::/64 link#5 UC em0.11
2001:910::4 00:30:48:71:12:4c UHL lo0
2001:910::17 00:e0:81:5f:29:72 UHLW em0.11
2001:910::18 00:30:48:81:dd:9a UHLW em0.11
2001:910::19 00:30:48:81:dc:9c UHLW em0.11
2001:910:ff::/64 link#8 UC em0.800
2001:910:ff::1 00:30:48:71:12:4c UHL lo0
2001:910:ff::3 00:13:c3:af:62:1c UHLW em0.800
2001:910:800::/64 fe80::2e0:81ff:fe5f:2972%em0.11 UG1 em0.11
fe80::/10 ::1 UGRS lo0
(...)

Internet6:
Destination Gateway Flags Netif
Expire
::/96 ::1 UGRS lo0
::1 ::1 UHL lo0
::ffff:0.0.0.0/96 ::1 UGRS lo0
2001:910::/64 link#5 UC em0.11
2001:910::4 00:30:48:71:12:4c UHL lo0
2001:910::16 link#5 UHLW em0.11
2001:910::17 00:e0:81:5f:29:72 UHLW em0.11
2001:910::18 00:30:48:81:dd:9a UHLW em0.11
2001:910::19 00:30:48:81:dc:9c UHLW em0.11
2001:910:ff::/64 link#8 UC em0.800
2001:910:ff::1 00:30:48:71:12:4c UHL lo0
2001:910:ff::3 00:13:c3:af:62:1c UHLW em0.800
2001:910:800::/40 fe80::2e0:81ff:fe5f:2972%em0.11 UG1 em0.11
fe80::/10 ::1 UGRS lo0
(...)

Internet6:
Destination Gateway Flags Netif
Expire
::/96 ::1 UGRS lo0
::1 ::1 UHL lo0
::ffff:0.0.0.0/96 ::1 UGRS lo0
2001:910::/64 link#5 UC em0.11
2001:910::4 00:30:48:71:12:4c UHL lo0
2001:910::16 link#5 UHLW em0.11
2001:910::17 00:e0:81:5f:29:72 UHLW em0.11
2001:910::18 00:30:48:81:dd:9a UHLW em0.11
2001:910::19 00:30:48:81:dc:9c UHLW em0.11
2001:910:ff::/64 link#8 UC em0.800
2001:910:ff::1 00:30:48:71:12:4c UHL lo0
2001:910:ff::3 00:13:c3:af:62:1c UHLW em0.800
2001:910:800::/40 fe80::2e0:81ff:fe5f:2972%em0.11 UG1 em0.11
2001:910:800::/64 fe80::2e0:81ff:fe5f:2972%em0.11 UG1 em0.11
fe80::/10 ::1 UGRS lo0
(...)

Internet6:
Destination Gateway Flags Netif
Expire
::/96 ::1 UGRS lo0
::1 ::1 UHL lo0
::ffff:0.0.0.0/96 ::1 UGRS lo0
2001:910::/64 link#5 UC em0.11
2001:910::4 00:30:48:71:12:4c UHL lo0
2001:910::16 link#5 UHLW em0.11
2001:910::17 00:e0:81:5f:29:72 UHLW em0.11
2001:910::18 00:30:48:81:dd:9a UHLW em0.11
2001:910::19 00:30:48:81:dc:9c UHLW em0.11
2001:910:ff::/64 link#8 UC em0.800
2001:910:ff::1 00:30:48:71:12:4c UHL lo0
2001:910:ff::3 00:13:c3:af:62:1c UHLW em0.800
fe80::/10 ::1 UGRS lo0
(...)

As you can see, it adds and removes the routes over and over, as reported in
zebra show ipv6 route.

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bugzilla-daemon at allevil

Dec 3, 2007, 3:23 AM

Post #2 of 2 (1003 views)
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[Bug 427] Zebra "autogenerates" ipv6 kernel routes when receiving routes from ospf6d [In reply to]

Please do not reply directly to this email. All additional
comments should be made in the comments box of this bug
report.

http://bugzilla.quagga.net/show_bug.cgi?id=427

paul [at] dishone changed:

What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1

------- Additional Comments From paul [at] dishone 2007-12-02 22:38 -------
This sounds like a known regression in the 0.99.9 release, a bug which was fixed
by Denis with:

zebra/ChangeLog

+2007-10-24 Denis Ovsienko
+
+ * kernel_socket.c: (rtm_read) we used to ignore own messages,
+ but the RIB debug commit broke it for IPv6 case (reported
+ by Milan Kocian). Fixed.

If you could test CVS and confirm it's fixed, or wait till 0.99.10 and confirm
then, that'd be great.

Thanks.

------- Additional Comments From quagga.net [at] m 2007-12-03 11:23 -------
I tried 2007-12-02's snapshot, and it solved my problem.

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