diff --git a/chapter/ipaddressing.tex b/chapter/ipaddressing.tex
new file mode 100644
index 0000000..95e12cb
--- /dev/null
+++ b/chapter/ipaddressing.tex
@@ -0,0 +1,3 @@
+\chapter{IP Addressing}
+
+\lstinputlisting[language=plaintxt]{code/ipaddressblocks.txt}
\ No newline at end of file