diff --git a/src/addrcache.c b/src/addrcache.c
index edeed9d..bfbac7c 100644
--- a/src/addrcache.c
+++ b/src/addrcache.c
@@ -26,6 +26,8 @@
 #include "common.h"
 #include "ipxwrapper.h"
 
+#define ADDR_CACHE_TTL 30
+
 struct host_table_key {
 	addr32_t netnum;
 	addr48_t nodenum;
@@ -123,7 +125,7 @@ int addr_cache_get(SOCKADDR_STORAGE *addr, size_t *addrlen, addr32_t net, addr48
 	
 	host_table_t *host = host_table_find(net, node);
 	
-	if(host && time(NULL) < host->time + main_config.addr_cache_ttl)
+	if(host && time(NULL) < host->time + ADDR_CACHE_TTL)
 	{
 		memcpy(addr, &(host->addr), host->addrlen);
 		*addrlen = host->addrlen;
diff --git a/src/config.c b/src/config.c
index 305ab5f..cedc617 100644
--- a/src/config.c
+++ b/src/config.c
@@ -31,8 +31,6 @@ main_config_t get_main_config(void)
 	config.w95_bug        = true;
 	config.bcast_all      = false;
 	config.src_filter     = true;
-	config.addr_cache_ttl = 30;
-	config.iface_ttl      = 5;
 	
 	HKEY reg      = reg_open_main(false);
 	DWORD version = reg_get_dword(reg, "config_version", 1);
diff --git a/src/config.h b/src/config.h
index c4d12ca..7a53b54 100644
--- a/src/config.h
+++ b/src/config.h
@@ -37,9 +37,6 @@ typedef struct main_config {
 	
 	enum ipx_log_level log_level;
 	
-	unsigned int addr_cache_ttl;
-	unsigned int iface_ttl;
-	
 	bool single_iface;
 	addr32_t single_netnum;
 	addr48_t single_nodenum;
diff --git a/src/ipxwrapper.h b/src/ipxwrapper.h
index e0b255e..ac9de0a 100644
--- a/src/ipxwrapper.h
+++ b/src/ipxwrapper.h
@@ -104,7 +104,6 @@ extern struct rclient g_rclient;
 ipx_socket *get_socket(SOCKET fd);
 void lock_sockets(void);
 void unlock_sockets(void);
-BOOL ip_is_local(uint32_t ipaddr);
 
 INT APIENTRY r_EnumProtocolsA(LPINT,LPVOID,LPDWORD);
 INT APIENTRY r_EnumProtocolsW(LPINT,LPVOID,LPDWORD);