diff --git a/apps/routerconsole/java/src/net/i2p/router/web/NetDbHelper.java b/apps/routerconsole/java/src/net/i2p/router/web/NetDbHelper.java
index 338eccfaa1..f317f4bf19 100644
--- a/apps/routerconsole/java/src/net/i2p/router/web/NetDbHelper.java
+++ b/apps/routerconsole/java/src/net/i2p/router/web/NetDbHelper.java
@@ -21,7 +21,8 @@ public class NetDbHelper extends HelperBase {
                                            _x("All Routers with Full Stats"),   // 4
                                            "LeaseSet Debug",                    // 5
                                            _x("LeaseSets"),                     // 6
-                                           "Sybil"   };                         // 7
+                                           "Sybil",                             // 7
+                                           "Advanced Lookup"   };               // 8
 
     private static final String links[] =
                                           {"",                                  // 0
@@ -31,40 +32,41 @@ public class NetDbHelper extends HelperBase {
                                            "?f=1",                              // 4
                                            "?l=2",                              // 5
                                            "?l=1",                              // 6
-                                           "?f=3" };                            // 7
+                                           "?f=3",                              // 7
+                                           "?f=4" };                            // 8
 
     public void setRouter(String r) {
-        if (r != null)
+        if (r != null && r.length() > 0)
             _routerPrefix = DataHelper.stripHTML(r);  // XSS
     }
 
     /** @since 0.9.21 */
     public void setVersion(String v) {
-        if (v != null)
+        if (v != null && v.length() > 0)
             _version = DataHelper.stripHTML(v);  // XSS
     }
 
     /** @since 0.9.21 */
     public void setCountry(String c) {
-        if (c != null)
+        if (c != null && c.length() > 0)
             _country = DataHelper.stripHTML(c);  // XSS
     }
 
     /** @since 0.9.28 */
     public void setFamily(String c) {
-        if (c != null)
+        if (c != null && c.length() > 0)
             _family = DataHelper.stripHTML(c);  // XSS
     }
 
     /** @since 0.9.28 */
     public void setCaps(String c) {
-        if (c != null)
+        if (c != null && c.length() > 0)
             _caps = DataHelper.stripHTML(c);  // XSS
     }
 
     /** @since 0.9.28 */
     public void setIp(String c) {
-        if (c != null)
+        if (c != null && c.length() > 0)
             _ip = DataHelper.stripHTML(c);  // XSS
     }
 
@@ -74,6 +76,14 @@ public class NetDbHelper extends HelperBase {
             _sybil = DataHelper.stripHTML(c);  // XSS
     }
 
+    /** For form, same as above but with a length check
+     *  @since 0.9.28
+     */
+    public void setSybil2(String c) {
+        if (c != null && c.length() > 0)
+            _sybil = DataHelper.stripHTML(c);  // XSS
+    }
+
     public void setFull(String f) {
         try {
             _full = Integer.parseInt(f);
@@ -108,6 +118,8 @@ public class NetDbHelper extends HelperBase {
                 renderer.renderLeaseSetHTML(_out, _debug);
             else if (_full == 3)
                 (new SybilRenderer(_context)).getNetDbSummary(_out);
+            else if (_full == 4)
+                renderLookupForm();
             else
                 renderer.renderStatusHTML(_out, _full);
         } catch (IOException ioe) {
@@ -126,7 +138,8 @@ public class NetDbHelper extends HelperBase {
             return 6;
         if (".".equals(_routerPrefix))
             return 1;
-        if (_routerPrefix != null)
+        if (_routerPrefix != null || _version != null || _country != null ||
+            _family != null || _caps != null || _ip != null || _sybil != null)
             return 2;
         if (_full == 2)
             return 3;
@@ -134,6 +147,8 @@ public class NetDbHelper extends HelperBase {
             return 4;
         if (_full == 3)
             return 7;
+        if (_full == 4)
+            return 8;
         return 0;
     }
 
@@ -152,7 +167,7 @@ public class NetDbHelper extends HelperBase {
         for (int i = 0; i < titles.length; i++) {
             if (i == 2 && tab != 2)
                 continue;   // can't nav to lookup
-            if ((i == 5 || i == 7) && !_context.getBooleanProperty(PROP_ADVANCED))
+            if ((i == 5 || i == 7 || i == 8) && !_context.getBooleanProperty(PROP_ADVANCED))
                 continue;
             if (i == tab) {
                 // we are there
@@ -175,4 +190,22 @@ public class NetDbHelper extends HelperBase {
         buf.append("</div>");
         _out.write(buf.toString());
     }
+
+    /**
+     *  @since 0.9.28
+     */
+    private void renderLookupForm() throws IOException {
+        _out.write("<form action=\"/netdb\" method=\"GET\"><p><b>Pick One</b></p>\n" +
+                   "Caps <input type=\"text\" name=\"caps\">e.g. f or XOfR<br>\n" +
+                   "Country code <input type=\"text\" name=\"c\">e.g. ru<br>\n" +
+                   "Family <input type=\"text\" name=\"fam\"><br>\n" +
+                   "Hash prefix <input type=\"text\" name=\"r\"><br>\n" +
+                   "IP <input type=\"text\" name=\"ip\">IPv4 or IPv6, /24,/16,/8 suffixes optional for IPv4<br>\n" +
+                   "Version <input type=\"text\" name=\"v\"><br>\n" +
+                   "<p><b>Add Sybil analysis (must pick one above):</b></p>\n" +
+                   "Sybil close to <input type=\"text\" name=\"sybil2\">Router hash, dest hash, b32, or from address book<br>\n" +
+                   "or Sybil close to this router <input type=\"checkbox\" class=\"optbox\" value=\"1\" name=\"sybil\"><br>" +
+                   "<p><input type=\"submit\" class=\"search\" value=\"Lookup\"></p>" +
+                   "</form>\n");
+    }
 }
diff --git a/apps/routerconsole/java/src/net/i2p/router/web/NetDbRenderer.java b/apps/routerconsole/java/src/net/i2p/router/web/NetDbRenderer.java
index 68f6064b41..ee0a88788a 100644
--- a/apps/routerconsole/java/src/net/i2p/router/web/NetDbRenderer.java
+++ b/apps/routerconsole/java/src/net/i2p/router/web/NetDbRenderer.java
@@ -107,7 +107,7 @@ class NetDbRenderer {
                     ipMode = 3;
                 }
                 for (int i = 0; i < ipMode; i++) {
-                    int last = ip.lastIndexOf('.');
+                    int last = ip.substring(0, ip.length() - 1).lastIndexOf('.');
                     if (last > 0)
                         ip = ip.substring(0, last + 1);
                 }
diff --git a/apps/routerconsole/java/src/net/i2p/router/web/SybilRenderer.java b/apps/routerconsole/java/src/net/i2p/router/web/SybilRenderer.java
index 9ce3419986..dcd9dd292f 100644
--- a/apps/routerconsole/java/src/net/i2p/router/web/SybilRenderer.java
+++ b/apps/routerconsole/java/src/net/i2p/router/web/SybilRenderer.java
@@ -75,6 +75,7 @@ class SybilRenderer {
     private static final double POINTS_BAD_VERSION = 50.0;
     private static final double POINTS_UNREACHABLE = 4.0;
     private static final double POINTS_NEW = 4.0;
+    private static final double POINTS_BANLIST = 25.0;
 
     public SybilRenderer(RouterContext ctx) {
         _context = ctx;
@@ -638,6 +639,8 @@ class SybilRenderer {
         RateAverages ra = RateAverages.getTemp();
         for (RouterInfo info : ris) {
             Hash h = info.getHash();
+            if (_context.banlist().isBanlisted(h))
+                addPoints(points, h, POINTS_BANLIST, "Banlisted");
             PeerProfile prof = _context.profileOrganizer().getProfileNonblocking(h);
             if (prof != null) {
                 long heard = prof.getFirstHeardAbout();
diff --git a/apps/routerconsole/jsp/netdb.jsp b/apps/routerconsole/jsp/netdb.jsp
index 0a8f862c45..18a83ea049 100644
--- a/apps/routerconsole/jsp/netdb.jsp
+++ b/apps/routerconsole/jsp/netdb.jsp
@@ -29,5 +29,6 @@
  <jsp:setProperty name="netdbHelper" property="caps" value="<%=request.getParameter(\"caps\")%>" />
  <jsp:setProperty name="netdbHelper" property="ip" value="<%=request.getParameter(\"ip\")%>" />
  <jsp:setProperty name="netdbHelper" property="sybil" value="<%=request.getParameter(\"sybil\")%>" />
+ <jsp:setProperty name="netdbHelper" property="sybil2" value="<%=request.getParameter(\"sybil2\")%>" />
  <jsp:getProperty name="netdbHelper" property="netDbSummary" />
 </div></div></body></html>