diff --git a/devpnc.h b/devpnc.h
index 5f7d64f..2b88c58 100644
--- a/devpnc.h
+++ b/devpnc.h
@@ -973,7 +973,7 @@ int devpnc (int class, int func, int device) {
 #endif
     addr.sin_family = AF_INET;
     addr.sin_port = htons(nport);
-    addr.sin_addr.s_addr = INADDR_ANY;
+    addr.sin_addr.s_addr = bindaddr;
     if (bind(pncfd, (struct sockaddr *)&addr, sizeof(addr))) {
       perror("bind: unable to bind for PNC");
       fatal(NULL);
diff --git a/em.c b/em.c
index 195b9f6..0433c11 100644
--- a/em.c
+++ b/em.c
@@ -667,6 +667,7 @@ static int domemdump;                       /* -memdump arg */
 
 static int tport;                           /* -tport option (incoming terminals) */
 static int nport;                           /* -nport option (PNC/Ringnet) */
+static in_addr_t bindaddr = INADDR_ANY;     /* -naddr option (PnC/Ringnet) */
 
 /* load map related data, specified with -map */
 
@@ -4626,6 +4627,12 @@ int main (int argc, char **argv) {
       } else
 	fatal("-nport needs an argument\n");
 
+    } else if (strcmp(argv[i],"-naddr") == 0) {
+      if (i+1 < argc && argv[i+1][0] != '-') {
+	inet_aton(argv[++i], &bindaddr);
+      } else
+	fatal("-naddr needs an argument\n");
+
     } else if (strcmp(argv[i],"-tport") == 0) {
       if (i+1 < argc && argv[i+1][0] != '-') {
 	sscanf(argv[++i],"%d", &templ);