Course pages 2011–12
Computer Networking Hands-on material
While this subject has no formal practicals there is considerable merit in learning by doing. This page will contain material of a practical (hands-on) nature.
Applets (from Pearson website - I believe no 'magic' (purchase, etc.) is required to get access)
Wireshark Labs-sheets - not bad for ideas but the pitch point is an American Liberal Arts College, interpret that as you wish.