Add new file

danetro/Exercises/e1-topology.dot

+graph {
+    layout=dot;
+
+    label="danetro Simple Lab Topology";
+    h0 [label="Host 0", shape="octagon"];
+    r0 [label="Router 0", shape="octagon"];
+    h1 [label="Host 1", shape="octagon"];
+    
+
+    h0 -- r1[label="r1wan0 <--> r2wan1"];
+    r1 -- h1[label="r2wan2 <--> r3wan0"];
+}