Werk #15735: check_traceroute: Fix checking of routers specified by domain name

Component	Checks & agents
Title	check_traceroute: Fix checking of routers specified by domain name
Date	May 9, 2023
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.3.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME) 2.2.0b8 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME) 2.1.0p28 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 2.0.0p36 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

The active check check_traceroute, configurable via the ruleset Check current routing, failed to check routers specified by domain name:

• Routers for which the active check was supposed to alert if they are not included in the route were always reported as missing, even if they were included.
• Routers for which the active check was supposed to alert if they are included in the route were always reported as absent, even if they were included.

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