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; }