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[Bug 346] ospfd can behave very strangely with unnumbered interfaces

 

 

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bugzilla-daemon at allevil

May 8, 2008, 10:34 PM

Post #1 of 7 (6566 views)
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[Bug 346] ospfd can behave very strangely with unnumbered interfaces

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http://bugzilla.quagga.net/show_bug.cgi?id=346





------- Additional Comments From daniel_ng11 [at] lycos 2008-05-09 06:34 -------
-note that the above patch will *not* solve the problem of parallel unnumbered
links for OSPF. It will only work with single unnumbered links

-Tested successful interaction with a gateD router over an unnumbered PPP link
--Both routers understand each other's LSAs and end up with the correct
routing table contents




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bugzilla-daemon at allevil

May 8, 2008, 9:53 PM

Post #2 of 7 (6284 views)
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[Bug 346] ospfd can behave very strangely with unnumbered interfaces [In reply to]

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comments should be made in the comments box of this bug
report.

http://bugzilla.quagga.net/show_bug.cgi?id=346





------- Additional Comments From daniel_ng11 [at] lycos 2008-05-09 05:50 -------
Created an attachment (id=263)
--> (http://bugzilla.quagga.net/attachment.cgi?id=263&action=view)
Proposed Patch




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bugzilla-daemon at allevil

May 8, 2008, 10:24 PM

Post #3 of 7 (6290 views)
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[Bug 346] ospfd can behave very strangely with unnumbered interfaces [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=346





------- Additional Comments From daniel_ng11 [at] lycos 2008-05-09 06:22 -------
I have attached a proposed patch:

-based on 0.99.9

-deals with incoming LSA from an Unnumbered link (RFC2328 S12.4.1)- "For
unnumbered point-to-point links, the Link Data field should be set to the
unnumbered interface's MIB-II [Ref8] ifIndex value."

--it does this by finding the Next-Hop IP using the neighbour's Router ID
instead of using the Link Data field. This is because the Link Data field no
longer can be relied upon to contain a valid IP address (it contains an
ifIndex value instead).

-but doesn't yet send the MIB-II ifIndex value in *outgoing* LSAs

-an interface must be specified as unnumbered via the Zebra VTY console,
issuing the config commands 'interface pppX, unnumbered'. To turn it off,
use 'interface pppX, no unnumbered'.







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bugzilla-daemon at allevil

May 18, 2008, 7:22 PM

Post #4 of 7 (6254 views)
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[Bug 346] ospfd can behave very strangely with unnumbered interfaces [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=346


daniel_ng11 [at] lycos changed:

What |Removed |Added
----------------------------------------------------------------------------
Attachment #263 is|0 |1
obsolete| |






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bugzilla-daemon at allevil

May 18, 2008, 7:22 PM

Post #5 of 7 (6247 views)
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[Bug 346] ospfd can behave very strangely with unnumbered interfaces [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=346


daniel_ng11 [at] lycos changed:

What |Removed |Added
----------------------------------------------------------------------------
Attachment #263 is|0 |1
obsolete| |






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bugzilla-daemon at allevil

May 18, 2008, 7:27 PM

Post #6 of 7 (6252 views)
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[Bug 346] ospfd can behave very strangely with unnumbered interfaces [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=346





------- Additional Comments From daniel_ng11 [at] lycos 2008-05-19 03:27 -------
Created an attachment (id=264)
--> (http://bugzilla.quagga.net/attachment.cgi?id=264&action=view)
Patches for implementing Unnumbered OSPF




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bugzilla-daemon at allevil

May 18, 2008, 7:27 PM

Post #7 of 7 (6260 views)
Permalink
[Bug 346] ospfd can behave very strangely with unnumbered interfaces [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=346





------- Additional Comments From daniel_ng11 [at] lycos 2008-05-19 03:27 -------
Updated patch- cleaned up extraneous debugging messages and comments.



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