[avahi] Apple computers and name resolution

[Marc Krochmal]

Hi,

Could you post a full packet trace file in tcpdump format.  That  
would clear things up.

Thanks.
-Marc


On Sep 30, 2005, at 1:07 PM, MDonoughe wrote:

> Hello
> I have two Linux computers and one iBook that runs OSX 10.4. I have  
> recently installed Avahi and gotten it configured on the Linux  
> computers. They can see each other over IPv6 and now use IPv6 to  
> make connections. I am having problems connecting to the iBook.  
> resolveip, run from a Linux box, returns 254.128.0.0 for the  
> address of the iBook. The same happens when I try to resolve the  
> name of a Windows computer that is using the Apple Bonjour add-on  
> thing. Using resolveip to resolve the name of a Linux box, returns  
> the IPv4 address of that computer(resolveip only does IPv4  
> addresses). Using tcpdump, I see something about a cache flush, and  
> the IPv6 address of the laptop. 254.128.0.0 -> fe800000 -> fe80::….  
> The IPv6 address seems to be returned as an IPv4 address, and  
> causes confusion. SSH thinks that my iBook is attempting to break  
> in by using a host name that doesn't map back to the address the  
> connection originates from. I cannot connect to my iBook from a  
> Linux box by using the name of the iBook.
>
> Sample IPv6 mDNS transcripts:
> iBook resolves the name of a Linux box
> 20:00:23.035724 IP 192.168.0.3.52294 > 224.0.0.251.5353:  2851+  
> AAAA? ninten.local. (30)
> 20:00:23.286977 fe80::211:24ff:fe29:dff0.52295 > ff02::fb.5353:   
> 2851+ AAAA? ninten.local. (30) [hlim 1]
> 20:00:23.287936 fe80::201:2ff:fe6a:5298.5353 >  
> fe80::211:24ff:fe29:dff0.52295:  2851*- 1/0/0 (58)
>
> Linux box fails to resolve the name of the iBook
> 20:02:15.961836 IP 192.168.0.1.1760 > 224.0.0.251.5353:  53423  
> AAAA? chrono.local. (30)
> 20:02:15.962690 IP 192.168.0.3.5353 > 192.168.0.1.1760:  53423*-  
> 1/0/0 AAAA[|domain]
> 20:02:15.963254 IP 192.168.0.3.5353 > 224.0.0.251.5353:  0*- [0q]  
> 1/0/0 (Cache flush) AAAA fe80::211:24ff:fe29:dff0 (52)
> 20:02:15.966753 IP 192.168.0.1.1760 > 224.0.0.251.5353:  53423  
> AAAA? chrono.local. (30)
> 20:02:15.969303 IP 192.168.0.3.5353 > 192.168.0.1.1760:  53423*-  
> 1/0/0 AAAA[|domain]
>
>
> In the first sample, the iBook successfully runs ping6 and pings  
> the Linux box over IPv6. In the second, the Linux box fails to ping  
> the iBook. ping exits with the error "connect: Invalid argument."  
> ping6 does the same.
>
> Before this, I had working mDNS with Apple's mDNSResponder, but  
> only over IPv4.
>
>
> Does anyone have a similar setup that doesn't have this issue?
>
>
> MDonoughe
> http://bot24.hn.org/
> mdonoughe at bot24.hn.org
>
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