diff -urNp a/agent/mibgroup/ip-mib/data_access/ipaddress_linux.c b/agent/mibgroup/ip-mib/data_access/ipaddress_linux.c

--- a/agent/mibgroup/ip-mib/data_access/ipaddress_linux.c	2020-06-04 13:22:32.103942940 +0200

+++ b/agent/mibgroup/ip-mib/data_access/ipaddress_linux.c	2020-06-04 13:24:44.345231759 +0200

@@ -232,7 +232,7 @@ _load_v6(netsnmp_container *container, i

 #define PROCFILE "/proc/net/if_inet6"

     if (!(in = fopen(PROCFILE, "r"))) {

-        DEBUGMSGTL(("access:ipaddress:container","could not open " PROCFILE "\n"));

+        NETSNMP_LOGONCE((LOG_ERR, "ipaddress_linux: could not open " PROCFILE));

         return -2;

     }