End Notes

1. Alwayn, Vivek. Advanced MPLS Design and Implementation. Cisco Press, 2001.

2. Cisco Packet Magazine. "Transport to the Future." R. Brown. Q1, 2002.

3. RFC 2637. "Point-to-Point Tunneling Protocol." K. Hamzeh, G. Pall, W. Verthein, J. Taarud, W. Little, and G. Zorn. 1999.

4. RFC 3078. "Microsoft Point-To-Point Encryption (MPPE) Protocol." G. Pall, G. Zorn. 2001.

5. RFC 2661. "Layer Two Tunneling Protocol (L2TP)." W. Townsley, A. Valencia, A. Rubens, G. Pall, G. Zorn, B. Palter. 1999.

6. RFC 2401. "Security Architecture for the Internet Protocol."

7. RFC 1191. "Path MTU Discovery." J.C. Mogul and S.E. Deering. 1990.

8. Cisco Systems Internet Draft. "Extended Authentication Within IKE (XAUTH)." S. Beaulieu and R. Pereira. 2002.

9. ^"Extended Authentication within IKE (XAUTH)." www.ietf.org/internet-drafts/draft-beaulieu-ike-xauth-01.txt.

10. Jones, Burton W. Modular Arithmetic. Blaisdell Publishing Company, 1964.

11. www.sans.org/infosecFAQ/encription/diffie.htm.

12. Cisco Packet Magazine. "IPSec-Based VPNs and Related Algorithms." P. Nedeltchev and R. Ratchkov. Q2 2002. (Also at www.cisco.com/warp/public/784/packet/apr02/pdfs/plamen.pdf.)