>
> Dear all,
>
> via a bug report from Preethi I figured out that there are no
> RTM_NEWADDR
> routing messages generated when an IP address is added to an interface
> and there is already an address in the same network configured.
> This is a problem for the SCTP stack.
>
> To reproduce the problem you can
> sudo ifconfig em0 192.168.1.1
> sudo ifconfig em0 192.168.1.2 alias
>
> and use the attached problem. It will only show the first address
> being added. This problem applies to FreeBSD 9.0 CURRENT and 7.2
> RELEASE.
>
> Any idea how to fix the problem?
>
Please try my patch (not the final version) at
http://people.freebsd.org/~qingli/patch-8-28-rtmsg.diff
I have tested it and seems to work as expected. You should
get the notifications for both address insertion ("alias")
and deletion ("-alias").
Let me know if it's to your satisfaction.
I found a couple of other issues while looking over the code.
1. in_scrubprefix() is called unnecessarily in 2 locations
2. the loopback host route is not removed for an alias
On a related note, in.c can use some code cleanup. I think
I will do that post 8.0 release.
Thanks,
-- Qing
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