Opened 17 months ago

Closed 15 months ago

#1172 closed defect (invalid)

double colon in IPv6 address does not work with ip_ plugin

Reported by: kenyon Owned by: nobody
Priority: normal Milestone: Munin 1.4.7
Component: plugins Version: 1.4.3
Severity: normal Keywords:
Cc:

Description

Copied from http://munin-monitoring.org/ticket/853#comment:2 by andrieslouw:

When you replace all instances of :: in your IP by :0: (or as many as needed) the plugin works well!

Example: ip_2a00:dd0:0:13:b:a::1 -> Doesn't work ip_2a00:dd0:0:13:b:a:0:1 -> Does work

And: ip_2a00:dd0:0:13:b::1 -> Doesn't work ip_2a00:dd0:0:13:b:0:0:1 -> Does work

I don't know if this problem originates from ip6tables, or the plugin in Munin, but replacing instances of :: by :0: solved all problems for me!

(Example: ​http://monitor.weserv.nl/prodes.nl/libertus.prodes.nl/ip_2a00_dd0_0_13_b_a_0_1.html )

Change History (1)

comment:1 Changed 15 months ago by kenyon

  • Resolution set to invalid
  • Status changed from new to closed

This isn't a bug. The example given does not work because the user was incorrectly formatting the IPv6 address. Per the canonical format (RFC 5952), the example address should be 2a00:dd0:0:13:b:a:0:1 because one 16-bit 0 field should not be compressed to colons. ​https://tools.ietf.org/html/rfc5952#section-4.2.2

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