Werk #5704: Windows agent: prevent crash without IPv6 support

Component

Checks & agents

Title

Windows agent: prevent crash without IPv6 support

Date

Feb 22, 2018

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

1.5.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
1.5.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
1.5.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
1.5.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
1.5.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
1.5.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
1.5.0b1	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
1.4.0p26	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

Windows agent crashed on older systems (at least Windows Server 2003 and Windows XP) that only supported IPv4.

The bug was introduced in 1.4.0p25. Older releases and systems that support IPv6 should have remained unaffected.

The configuration option ipv6 was not obeyed. Now this option can be set to 'no' in order to only listen IPv4 connections on a IPv6 capable system.