diff --git a/Makefile b/Makefile
index 528f607..2e73c38 100644
--- a/Makefile
+++ b/Makefile
@@ -2,6 +2,7 @@ ifdef DEBUG
 CCFLAGS ?= -g -DDEBUG
 else
 CCFLAGS ?= -Os
+LDFLAGS ?= -s -w
 endif
 
 PREFIX      ?= /usr/local
diff --git a/README.md b/README.md
index 420db83..f0eb6dc 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ Please read the manpages [ndppd.conf.5](ndppd.conf.5.adoc) and [ndppd.8](ndppd.8
 - [x] EPOLL support
 - [x] rtnetlink: Tracking routes
 - [x] rtnetlink: Tracking local addresses
-- [ ] rtnetlink: Memory cleanup
+- [x] rtnetlink: Cleanup
 - [ ] rtnetlink: Managing routes
 - [x] Automatic detection of internal interfaces (auto)
 - [ ] Automatically managing routes (autowire)
diff --git a/src/conf.c b/src/conf.c
index 7e64b20..c8630a7 100644
--- a/src/conf.c
+++ b/src/conf.c
@@ -520,7 +520,7 @@ bool nd_conf_load(const char *path)
 
     if (fp == NULL)
     {
-        nd_log_error("Failed to load configuration (%s): %s", path, strerror(errno));
+        nd_log_error("Failed to load configuration: %s", strerror(errno));
         return NULL;
     }
 
diff --git a/src/io.c b/src/io.c
index f790ced..f592b2c 100644
--- a/src/io.c
+++ b/src/io.c
@@ -19,7 +19,6 @@
 #include <errno.h>
 #include <stdio.h>
 #include <string.h>
-#include <sys/ioctl.h>
 #include <sys/socket.h>
 #include <unistd.h>
 
diff --git a/src/io.h b/src/io.h
index 27e4c8d..81d13e4 100644
--- a/src/io.h
+++ b/src/io.h
@@ -31,10 +31,8 @@ struct nd_io
     nd_io_handler_t *handler;
 };
 
-nd_io_t *nd_sio_create(int fd);
-bool nd_sio_set_nonblock(nd_io_t *io, bool value);
-
 nd_io_t *nd_io_socket(int domain, int type, int protocol);
+nd_io_t *nd_io_open(const char *file, int oflag);
 void nd_io_close(nd_io_t *io);
 bool nd_io_bind(nd_io_t *io, const struct sockaddr *addr, size_t addrlen);
 ssize_t nd_io_send(nd_io_t *io, const struct sockaddr *addr, size_t addrlen, const void *msg, size_t msglen);
diff --git a/src/ndppd.c b/src/ndppd.c
index 7f70942..25073d8 100644
--- a/src/ndppd.c
+++ b/src/ndppd.c
@@ -191,10 +191,7 @@ int main(int argc, char *argv[])
     nd_log_info("Loading configuration \"%s\"...", nd_opt_config_path);
 
     if (!nd_conf_load(nd_opt_config_path))
-    {
-        nd_log_error("Failed to load configuration");
         return -1;
-    }
 
     if (!nd_iface_startup())
         return -1;
@@ -212,7 +209,6 @@ int main(int argc, char *argv[])
 
     bool query_addresses = false;
 
-
     while (1)
     {
         if (nd_current_time >= nd_rtnl_dump_timeout)