Hi Ingo,
Per http://permalink.gmane.org/gmane.network.dns.ddclient.user/17, it
seems like you are the author of the multiple IP support for ddclient,
so I am writing to you to ask you about a specific line of code in your
patch that apparently is causing problems for me.
My setup used to work before ddclient 3.8.0, with your multiple IP
support patch, was released. Now ddclient won't update the DNS entry
because it thinks that the new IP address (specified via CLI options) is
the same as the cached IP address. Here are some additional details:
I am calling ddclient like this:
ddclient -debug -verbose -daemon=0 -syslog -use=ip -ip=192.168.1.1
When I run this command I get in the output:
SUCCESS: myhost.dyndns.org: skipped: IP address was already set to a.b.c.d
where a.b.c.d is *different* from 192.168.1.1, and is actually what I
have in the cache file for myhost.dyndns.org.
The line from your patch that I can't explain is this one (from
update_nics() ):
+ local $opt{$use} = $config{$h}{$use} if $config{$h}{$use};
For the way I am invoking ddclient, this will change $opt{'ip'} from
192.168.1.1 to a.b.c.d (because $config{'myhost.dyndns.org'}{'ip'} is
a.b.c.d).
The consequence is that from this point on, ddclient will believe that
the new IP address is a.b.c.d instead of what I specified via the
command line (192.168.1.1).
I know it's been a while since you wrote this code, but do you know why
you wrote the above line of code? I personally can't see a reason for
overwriting $opt{$use} with whatever is in the %config hash.
This issue is affected other users, and so far nobody has been able to
figure out why things don't work. Here's the Debian bug report for this
issue:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=527848
And it looks like this guy also ran into the same issue:
http://sourceforge.net/projects/ddclient/forums/forum/399428/topic/3158864
I also tried using "-use if" and "-if <my network interface>" but that
didn't work either. In that case something is overwriting "-use if" with
the internal equivalent of "-use ip", but I haven't investigated this
issue any further.
Any ideas?
Cheers,
Eloy Paris.-
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