bugzilla-daemon at allevil
May 8, 2008, 10:24 PM
Post #3 of 7
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[Bug 346] ospfd can behave very strangely with unnumbered interfaces
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comments should be made in the comments box of this bug
------- 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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