16916 FIX ip_addresses_snmp: dropped parsed data leads to empty HW/SW inventory

CMK-33345

Change-Id: I38037c01ad26754a84a288a7d3cafd38fc560a1e

Author: Frans Fürst

.werks/16916.md

@@ -0,0 +1,16 @@
+[//]: # (werk v3)
+# ip_addresses_snmp: dropped parsed data leads to empty HW/SW inventory
+
+key        | value
+---------- | ---
+date       | 2026-04-09T05:40:20+00:00
+version    | 2.5.0b4
+class      | fix
+edition    | community
+component  | checks
+level      | 1
+compatible | yes
+
+`parse_ip_addresses()` used for SNMP based network topology features like host labels and network adapter and IP address inventory had been turned into a (single use) generator, resulting data not being propagated to the HW/SW inventory.
+
+This change makes `parse_ip_addresses()` return a list and thus feeding the inventory functions again.

cmk/plugins/network/agent_based/ip_addresses_snmp.py

@@ -174,7 +174,7 @@ def parse_ip_addresses(string_table: Sequence[StringByteTable]) -> Section:
         elif interface_ip.version == 6:
             adapter.inet6.append(interface_ip)
 
-    yield from result.values()
+    return list(result.values())
 
 
 def host_labels_if_snmp(section: Section) -> HostLabelGenerator: