IPv6 support

[Michael Friedrich]

Andreas Ericsson wrote:
> Not really. You can still achieve the exact same functionality with
> custom variables. What Michael has done is to make one such custom
> variable "official", which breaks the ABI. He still has to use special
> plugins to check both ip4 and ip6 addresses at the same time, which is
> why I think it's quite stupid.

the dual check affinity only takes place in the host checking currently 
(where it does make sense to combine it with check_multi or any other 
conditional check wrapper). for other purposes you can still define your 
own checks and services, especially tagged as "PING4" and "PING6" e.g. - 
but no need to play around with "get the 4 or 6 address from somewhere 
for the commandline, but just take the §HOSTADRESS(6)$ macros and be 
happy as it was demanded.

don't get me wrong, i know that abi changes and such make developer's 
going mad. but from a users perspective this was one of the things 
demanded the most. at least within the range of those sysadmins already 
running ipv4 and ipv6 in their productive environments. even more, those 
virtual appliances and clustered setups would need an even more in deep 
rewrite, but that's another story (service sets might be a good attempt 
for that).

> You can, but with custom variables. How many "official" addresses should
> Nagios support? 3? 5? Soon we'll run into someone who wants more than
> that, and then we're left with breaking the ABI again. And again. And
> again. Breaking the ABI causes major headaches for module developers and
> users. Custom variables don't break the ABI and causes minor headaches
> for people with complex environments, who hopefully get paid quite a
> lot to handle such complexities in an elegant way. Nagios makes that
> possible, while making the normal case (ip4 *or* ip6) possible.

using custom variables within the default nagios gui remains impossible 
to be shown and used without hacking c code. making it available would 
either cost to allow custom variables to be shown (what regex might be 
good to show only those? is it really custom then? etc) rather than just 
supporting the address6 host attribute - which remains implemented by a 
community members, tested by various and demanded by lots of.

-- 
DI (FH) Michael Friedrich

Vienna University Computer Center
Universitaetsstrasse 7 A-1010 Vienna, Austria

email: 	michael.friedrich at univie.ac.at
phone: 	+43 1 4277 14359
mobile: +43 664 60277 14359
fax: 	+43 1 4277 14338
web:	http://www.univie.ac.at/zid
	http://www.aco.net

Icinga Core&  IDOUtils Developer
http://www.icinga.org


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