--- a/acct.c
+++ b/acct.c
@@ -37,8 +37,9 @@
 
 uint64_t acct_total_packets = 0, acct_total_bytes = 0;
 
+#define LOCAL_NET_MAX 10
 static int using_localnet4 = 0, using_localnet6 = 0;
-static struct addr localnet4, localmask4, localnet6, localmask6;
+static struct addr localnet4[LOCAL_NET_MAX], localmask4[LOCAL_NET_MAX], localnet6[LOCAL_NET_MAX], localmask6[LOCAL_NET_MAX];
 
 /* Parse the net/mask specification into two IPs or die trying. */
 void
@@ -120,13 +121,19 @@ acct_init_localnet(const char *spec)
    /* Register the correct netmask and calculate the correct net.  */
    addr_mask(&localnet, &localmask);
    if (localnet.family == IPv6) {
-      using_localnet6 = 1;
-      localnet6 = localnet;
-      localmask6 = localmask;
+      if(using_localnet6 >= LOCAL_NET_MAX){
+	errx(1, "Exceeded maximum IPv6 local networks");
+      }
+      localnet6[using_localnet6] = localnet;
+      localmask6[using_localnet6] = localmask;
+      using_localnet6++;
    } else {
-      using_localnet4 = 1;
-      localnet4 = localnet;
-      localmask4 = localmask;
+      if(using_localnet4 >= LOCAL_NET_MAX){
+	errx(1, "Exceeded maximum IPv4 local networks");
+      }
+      localnet4[using_localnet4] = localnet;
+      localmask4[using_localnet4] = localmask;
+      using_localnet4++;
    }
 
    verbosef("local network address: %s", addr_to_str(&localnet));
@@ -138,11 +145,15 @@ static int addr_is_local(const struct addr * const a,
    if (is_localip(a, local_ips))
       return 1;
    if (a->family == IPv4 && using_localnet4) {
-      if (addr_inside(a, &localnet4, &localmask4))
-         return 1;
+      for (int i=0; i < using_localnet4; i++){	   
+        if (addr_inside(a, &localnet4[i], &localmask4[i]))
+           return 1;
+      }
    } else if (a->family == IPv6 && using_localnet6) {
-      if (addr_inside(a, &localnet6, &localmask6))
-         return 1;
+      for (int i=0; i < using_localnet6; i++){	   
+        if (addr_inside(a, &localnet6[i], &localmask6[i]))
+           return 1;
+      }
    }
    return 0;
 }
--- a/darkstat.c
+++ b/darkstat.c
@@ -193,7 +193,7 @@ static struct cmdline_arg cmdline_args[] = {
    {"-r",             "capfile",         cb_capfile,      0},
    {"-p",             "port",            cb_port,         0},
    {"-b",             "bindaddr",        cb_bindaddr,    -1},
-   {"-l",             "network/netmask", cb_local,        0},
+   {"-l",             "network/netmask", cb_local,       -1},
    {"--base",         "path",            cb_base,         0},
    {"--local-only",   NULL,              cb_local_only,   0},
    {"--snaplen",      "bytes",           cb_snaplen,      0},