[avahi] Strange MDNS response from Axis cameras
lennart at poettering.net
Wed Feb 15 07:23:00 PST 2006
On Fri, 10.02.06 10:54, Iván Sánchez Ortega (i.sanchez at mirame.net) wrote:
> So, IMHO the algorithm to decide whether to choose the static or the
> link-local address from a pool of addresses should be intelligent enough to:
> - - Discard non locally routable addresses.
This is not an option, since it's fine to refer to external IP
addresses with local host names. (such as creating a local name
"debian.local" pointing to your local Debian mirror, like
The way to go is probably just to favor local IP addresses over non-locals
if both are available.
I guess I will implement something like this:
1. if a local/non-IPv4LL address exists, use it, quit
2. if a local/IPv4LL address exists, use it, quit
3. otherwise use what is left
If I understand you correctly this algorithm is compatible with those
AXIS cameras you were talking of, right?
> I agree with Marc: link-local addresses (169.254.0.0) are preferible than
> static addresses.
I don't think so. In my LAN I use IP addresses from the range
192.168.50.x and would prefer I they are used instead of the
> Or, avahi could add the relevant entry to the routing table (if there isn't
> already a way to route traffic to link-local addresses), in order to comply
> with RFC 3927*. This way, after I run avahi-browser (or whatever), I could
> automagically use services on devices with a link-local address.
If you want compliance with RFC 3927, you're probably better off
installing an IPv4ll implemntation, such as Anand Kumrias "zeroconf"
package. (yes, that package has a stupid name!)
apt-get install zeroconf
Lennart Poettering; lennart [at] poettering [dot] net
ICQ# 11060553; GPG 0x1A015CC4; http://0pointer.net/lennart/
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